WO2015085626A1 - Electroosmotic pump - Google Patents
Electroosmotic pump Download PDFInfo
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- WO2015085626A1 WO2015085626A1 PCT/CN2013/090146 CN2013090146W WO2015085626A1 WO 2015085626 A1 WO2015085626 A1 WO 2015085626A1 CN 2013090146 W CN2013090146 W CN 2013090146W WO 2015085626 A1 WO2015085626 A1 WO 2015085626A1
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- solid electrolyte
- porous medium
- hydrogen
- liquid
- gas diffusion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
Definitions
- the invention belongs to the technical field of liquid transportation, and particularly relates to an electroosmotic pump, which can realize uninterrupted liquid transportation under the condition of applying a voltage.
- the electroosmotic pump is the simplest fluid delivery device. It has the advantages of continuous flow without pulsation, no moving parts, no mechanical wear, etc. It has broad application prospects in many fields involving fluid transportation, such as drug microinfusion, high performance liquid chromatography, chip laboratory, fuel cell and so on.
- the principle of electroosmosis is: The liquid will form an electric double layer when it contacts the solid wall. Under the applied electric field, the ions in the diffusion layer will move directionally. Because the liquid is sticky, the directional moving ions will drag the surrounding liquid forward. Movement, forming an electroosmotic flow.
- the electroosmotic pump is mainly composed of two liquid-permeable electrodes separated by a porous membrane.
- the working voltage is much higher than the water decomposition voltage of 1.2 V (tens or even thousands of volts), so an electrolytic reaction occurs during operation.
- the generated bubbles tend to block the channels, resulting in reduced efficiency or even interruption of current, stopping the infusion.
- Some electroosmotic pumps do not work continuously. It is necessary to stop the pump and remove the gas accumulated in the chamber before continuing operation. Therefore, it is urgent to develop a low-pressure, high-efficiency, bubble-free electroosmotic pump.
- an object of the present invention is to provide an electroosmotic pump which is low pressure (operating at 0.5V) and which is free from bubble generation during operation.
- An electroosmotic pump comprising a porous medium, a first liquid chamber and a second liquid chamber respectively located on opposite sides of the porous medium;
- first solid electrolyte on a side of the first liquid chamber away from the porous medium, the first solid electrolyte is adjacent to the first liquid chamber; and the second liquid chamber is disposed on a side away from the porous medium a second solid electrolyte, the second solid electrolyte is adjacent to the second liquid chamber;
- a first gas diffusion electrode is disposed in close contact with the first solid electrolyte away from the porous medium; and a second gas diffusion electrode is closely attached to the second solid electrolyte away from the porous medium;
- a first hydrogen chamber is disposed on a side of the first gas diffusion electrode away from the porous medium; and a second hydrogen chamber is disposed on a side of the second gas diffusion electrode away from the porous medium;
- a first liquid inlet and outlet line communicating with the inner portion of the chamber is disposed on the first liquid chamber; and a second liquid inlet and outlet line communicating with the inner portion of the chamber is disposed on the second liquid chamber;
- the porous medium and the first solid electrolyte are respectively connected to the first liquid chamber, and the porous medium and the second solid electrolyte are respectively connected to the second liquid chamber;
- the first gas diffusion electrode is in communication with the first hydrogen chamber;
- the second gas diffusion electrode is in communication with the second hydrogen chamber;
- the external liquid is applied between the first gas diffusion electrode and the second gas diffusion electrode to realize the liquid transfer between the first liquid chamber and the second liquid chamber.
- the porous medium is a flat structure, and the first and second liquid chambers, the first and second solid electrolytes, the first and second gas diffusion electrodes, and the first and second hydrogen chambers are respectively in a flat shape Both sides of the porous medium, that is, the first hydrogen chamber, the first gas diffusion electrode, the first solid electrolyte, the first liquid chamber, the porous medium, the second liquid chamber, the second solid electrolyte, the second gas diffusion electrode,
- the second hydrogen chambers are sequentially stacked to form an electroosmotic pump of a flat structure; or;
- the porous medium is a cylindrical structure, cylindrical first and second liquid chambers, cylindrical first and first
- the two solid electrolytes, the cylindrical first and second gas diffusion electrodes, and the cylindrical first and second hydrogen chambers are respectively disposed on the inner and outer sides of the cylindrical reaming medium in a coaxial arrangement, that is, a hydrogen chamber, a first gas diffusion electrode, a first solid electrolyte, a first liquid chamber, a porous medium,
- the material of the porous medium is either one of porous glass, silica, alumina, or contains -NH 2 , -C00H, -S0 3 H, -0H, quaternary ammonia, quaternary, imidazole, hydrazine functional groups.
- the pore diameter of the porous medium is lOnm- ⁇ ;
- the ratio of the pore size of the porous medium to the characteristic thickness of the electric double layer formed by the liquid to be transported in contact with the wall surface of the porous medium is 0.1-50;
- the porous medium or porous medium surface coated material has an absolute Zeta potential in the liquid to be transported greater than 20 mV.
- the first solid electrolyte and the second solid electrolyte are solid electrolytes capable of conducting H + , and the first solid electrolyte and the second solid electrolyte are solid electrolytes insoluble in a liquid to be transported;
- the first solid electrolyte and the second solid electrolyte are solid electrolytes capable of conducting OH-, and the first solid electrolyte and the second solid electrolyte are solid electrolytes insoluble in a liquid to be transported.
- the solid electrolyte capable of conducting H + is one of a sulfonic acid type proton exchange membrane and a carboxylic acid type daughter exchange membrane;
- the OH-permeable solid electrolyte is one of a quaternary ammonia type, a quaternary type, an imidazole type, and a hydrazine type anion exchange membrane.
- the material used for the porous medium has a negative Zeta potential with the transport liquid;
- the material used for the porous medium has a positive Zeta potential with the transport liquid.
- the distance between the porous medium and the first and second solid electrolytes is from 0.1 mm to 10 cm.
- the first and second hydrogen chambers are either a unitary structure, a split type communication structure, or a split type independent structure.
- the chamber may contain gaseous hydrogen, or contain hydrogen storage materials, or both gaseous hydrogen and hydrogen storage materials;
- the first and/or second chambers when the first and second hydrogen chambers are in the split communication structure, the first and/or second chambers either contain gaseous hydrogen, or contain hydrogen storage materials, or both gaseous hydrogen and Hydrogen storage material;
- the first and second chambers are respectively connected to a hydrogen gas source; or respectively contain a hydrogen storage material; or respectively, and hydrogen
- the gas source is connected to contain hydrogen storage materials.
- the first gas diffusion electrode and the second gas diffusion electrode are respectively porous electrodes for electrocatalytic oxidation and electrocatalytic reduction of hydrogen.
- the electrocatalysts in the first and second gas diffusion electrodes are each one or more of the following catalyst materials:
- the electrocatalyst is either one of platinum and palladium, or is platinum and palladium, rhodium, nickel, chromium, cobalt, copper, tungsten, iron, ruthenium, molybdenum, lead An alloy; or one of the above catalysts on carbon; or a non-metal hydrogen electrocatalytic oxidation/reduction electrocatalyst; when the solid electrolyte capable of conducting OH- is used, the electrocatalyst is platinum, palladium and nickel One of or an alloy of platinum and one of palladium, rhodium, nickel, chromium, cobalt, copper, tungsten, iron, ruthenium, molybdenum, or lead; or one of the above catalysts on carbon; Metal hydrogen electrocatalytic oxidation/reduction electrocatalyst.
- the electroosmotic pump of the invention has the advantages of simple structure and easy realization, low working voltage and no bubbles during operation, and can realize continuous stable and high-efficiency operation.
- Figure 1 is a schematic view of the principle of the electroosmotic pump of the present invention.
- 1 and ⁇ are first and second gas diffusion electrodes, respectively; 2 and 2' are first and second solid electrolytes, respectively; 3 and 3' are first and second liquid chambers, respectively; 4 is a porous medium; And 5' are the first and second hydrogen chambers, respectively.
- Figure 2 is a schematic view of the structure of the electroosmotic pump.
- 1 and ⁇ are first and second gas diffusion electrodes, respectively; 2 and 2' are first and second electrolytes, respectively; 4 is a porous medium; 5 and 5' are first and second hydrogen chambers, respectively; Channels of the first and second hydrogen chambers; 3 and 3' are first and second liquid chambers, respectively; 22 is a liquid inlet; 23 is a liquid outlet; 21 and 21' are first and second conductive end plates, respectively 24 is a porous medium fixing plate; 25 is a gasket.
- Fig. 3 is a graph showing the relationship between the flow rate and the voltage when the electroosmotic pump of the first embodiment delivers deionized water.
- Fig. 4 is a graph showing the relationship between the methanol concentration and the flow rate when the electroosmotic pump of Example 3 delivers different concentrations of methanol aqueous solution.
- An electroosmotic pump comprising a flat porous medium, a first liquid chamber and a second liquid chamber respectively located on opposite sides of the porous medium;
- first solid electrolyte on a side of the first liquid chamber away from the porous medium, the first solid electrolyte is adjacent to the first liquid chamber; and the second liquid chamber is disposed on a side away from the porous medium a second solid electrolyte, the second solid electrolyte is adjacent to the second liquid chamber;
- a first gas diffusion electrode is disposed in close contact with the first solid electrolyte away from the porous medium; and a second gas diffusion electrode is closely attached to the second solid electrolyte away from the porous medium;
- a first hydrogen chamber is disposed on a side of the first gas diffusion electrode away from the porous medium; and a second hydrogen chamber is disposed on a side of the second gas diffusion electrode away from the porous medium;
- a first liquid inlet and outlet line communicating with the inner portion of the chamber is disposed on the first liquid chamber; and a second liquid inlet and outlet line communicating with the inner portion of the chamber is disposed on the second liquid chamber;
- the porous medium and the first solid electrolyte are respectively connected to the first liquid chamber, and the porous medium and the second solid electrolyte are respectively connected to the second liquid chamber;
- the first gas diffusion electrode is in communication with the first hydrogen chamber;
- the second gas diffusion electrode is in communication with the second hydrogen chamber;
- Example 1 An external voltage is applied between the end plate 21 and the end plate 21' to effect liquid transfer between the first liquid chamber and the second liquid chamber.
- Example 1 An external voltage is applied between the end plate 21 and the end plate 21' to effect liquid transfer between the first liquid chamber and the second liquid chamber.
- the gas diffusion electrode is prepared as follows:
- the support layer for the electrode is TGP-060. It was coated with 0.6 mg/cm 2 of carbon powder and PTFE mixture, wherein the mass fraction of PTFE was 30%.
- the catalyst slurry is then applied to it.
- the slurry consisted of Pt/C (60% wt. JM), Nafion solution with a concentration of 5%, and ethanol; the mass ratio of Nafion, Pt/C, and ethanol was 1:4:20.
- the first and second gas diffusion electrodes are the same, and the electrodes prepared above are used.
- the electrolyte used was a Nafion-212 film, and the first and second electrolytes of this example were the same.
- One side of the gas diffusion electrode Nafion-212 film prepared above was heat-pressed at 120 ° C under a pressure of 2000 lb for one minute to form an integrated membrane electrode.
- the size of the electrode used in this embodiment was 4 cm x 4 cm.
- the porous medium 4 used was a sintered porous glass (R0BU, Germany) having a thickness of 4.5 mm and a diameter of 4 cm, and an average pore diameter of about 1 ⁇ m.
- the first and second end plates used are gold-plated stainless steel plates with serpentine flow channels on the end plates as hydrogen Chamber.
- the first and second hydrogen chambers are filled with H 2 .
- the thickness of the liquid chamber is 1 mm, that is, the distance between the porous medium and the first and second solid electrolytes is 1 mm.
- the pump Before use, the pump is required to pump the liquid to be transported (here, deionized water) from the inlet 22 to the filled liquid chamber and exit the outlet 23, at which time the liquid to be delivered is kept in communication with the inlet 22.
- the liquid to be transported here, deionized water
- the electrochemical workstation 1287 was used to apply a voltage of 0.3 V, 0.5 V, IV, 1.5 V to the two end plates (the working electrode terminal plate 21 and the tab on the reference electrode terminal plate 2), and the flow rate of the liquid flowing out from the outlet 23 was measured. size.
- the material used for the electroosmotic pump and the pump are the same as in the first embodiment.
- the material used for the electroosmotic pump and the pump are the same as in the first embodiment.
- the transport liquid was an aqueous solution of methanol of 0.5 ⁇ , 1 ⁇ , 2 ⁇ , 3 ⁇ , 5 ⁇ , respectively.
- the electrochemical flow station 1287 was used to apply IV voltage to the two end plates (the working electrode terminal plate 21, the reference electrode terminal plate 2), and the flow rate of the liquid flowing out from the outlet 23 was measured.
Abstract
An electroosmotic pump, comprising a porous medium (4), and a first liquid chamber (3) and second liquid chamber (3') located at the two sides of the porous medium (4); a first solid electrolyte (2) and a second solid electrolyte (2') which adjoin the first liquid chamber (3) and second liquid chamber (3'), respectively, and which are located on opposite sides of the porous medium (4); a first gas diffusion electrode (1) and second gas diffusion electrode (1') tightly attached to the other sides of the first solid electrolyte (2) and the second solid electrolyte (2'), respectively; a first gaseous hydrogen chamber (5) and a second gaseous hydrogen chamber (5') which adjoin the other sides of the first gas diffusion electrode (1) and second gas diffusion electrode (1'), respectively; a liquid inlet pipe (22) in communication with the first liquid chamber (3) and a liquid outlet pipe (23) in communication with the second liquid chamber (3'); an external voltage is applied between the first gas diffusion electrode (1) and the second gas diffusion electrode (1') in order to transport liquid, and the operating voltage is low and no gas bubbles appear during operation.
Description
一 种 电 渗 泵 技术领域 An electroosmotic pump technical field
本发明属于液体输送技术领域， 具体涉及一种电渗泵， 该装置可在施 加电压的条件下实现液体不间断输送。 The invention belongs to the technical field of liquid transportation, and particularly relates to an electroosmotic pump, which can realize uninterrupted liquid transportation under the condition of applying a voltage.
背景技术 Background technique
电渗泵是结构最简单的流体输送器件。 其具有流量连续无脉动、 无运 动部件、 无机械磨损等优点， 在涉及流体输送的诸多领域， 如药物微量输 液、 高效液相色谱、 芯片实验室、 燃料电池等领域有广泛的应用前景。 The electroosmotic pump is the simplest fluid delivery device. It has the advantages of continuous flow without pulsation, no moving parts, no mechanical wear, etc. It has broad application prospects in many fields involving fluid transportation, such as drug microinfusion, high performance liquid chromatography, chip laboratory, fuel cell and so on.
电渗的原理是： 液体同固体壁面接触会形成双电层， 在外加电场作用 下双电层内扩散层中的离子会定向移动， 因液体有粘性， 定向移动的离子 会拖曳周围液体向前运动， 形成电渗流。 The principle of electroosmosis is: The liquid will form an electric double layer when it contacts the solid wall. Under the applied electric field, the ions in the diffusion layer will move directionally. Because the liquid is sticky, the directional moving ions will drag the surrounding liquid forward. Movement, forming an electroosmotic flow.
电渗泵主要是由多孔膜分隔的两透液电极组成。 目前其工作电压远高 于水分解电压 1.2 V (几十甚至上千伏） ， 故在运行过程中有电解反应发生。 产生的气泡易阻塞孔道， 致使效率降低甚至电流中断， 停止输液。 一些电 渗泵并不能连续工作， 需隔断时间停泵排除腔内积聚的气体才可继续运行。 是故亟待开发低压、 高效、 无气泡的电渗泵。 The electroosmotic pump is mainly composed of two liquid-permeable electrodes separated by a porous membrane. At present, the working voltage is much higher than the water decomposition voltage of 1.2 V (tens or even thousands of volts), so an electrolytic reaction occurs during operation. The generated bubbles tend to block the channels, resulting in reduced efficiency or even interruption of current, stopping the infusion. Some electroosmotic pumps do not work continuously. It is necessary to stop the pump and remove the gas accumulated in the chamber before continuing operation. Therefore, it is urgent to develop a low-pressure, high-efficiency, bubble-free electroosmotic pump.
发明内容 Summary of the invention
针对以上问题， 本发明目的在于提供一低压 （可在 0.5V工作） 且运行 过程无气泡产生的电渗泵。 In view of the above problems, an object of the present invention is to provide an electroosmotic pump which is low pressure (operating at 0.5V) and which is free from bubble generation during operation.
为实现上述目的， 本发明采用的技术方案为： In order to achieve the above object, the technical solution adopted by the present invention is:
一种电渗泵， 包括一多孔介质， 分别位于所述多孔介质相对两侧的第 一液体腔室和第二液体腔室； An electroosmotic pump comprising a porous medium, a first liquid chamber and a second liquid chamber respectively located on opposite sides of the porous medium;
于第一液体腔室远离所述多孔介质一侧设有第一固体电解质， 第一固 体电解质与第一液体腔室相邻接； 于第二液体腔室远离所述多孔介质一侧 设有第二固体电解质， 第二固体电解质与第二液体腔室相邻接； Providing a first solid electrolyte on a side of the first liquid chamber away from the porous medium, the first solid electrolyte is adjacent to the first liquid chamber; and the second liquid chamber is disposed on a side away from the porous medium a second solid electrolyte, the second solid electrolyte is adjacent to the second liquid chamber;
于第一固体电解质远离多孔介质一侧紧密贴接的设有第一气体扩散电 极； 于第二固体电解质远离多孔介质一侧紧密贴接的设有第二气体扩散电 极； a first gas diffusion electrode is disposed in close contact with the first solid electrolyte away from the porous medium; and a second gas diffusion electrode is closely attached to the second solid electrolyte away from the porous medium;
于第一气体扩散电极远离多孔介质一侧设有第一氢气腔室； 于第二气 体扩散电极远离多孔介质一侧设有第二氢气腔室； a first hydrogen chamber is disposed on a side of the first gas diffusion electrode away from the porous medium; and a second hydrogen chamber is disposed on a side of the second gas diffusion electrode away from the porous medium;
于第一液体腔室上设有与腔室内部相连通的第一液体进出口管路； 于 第二液体腔室上设有与腔室内部相连通的第二液体进出口管路； a first liquid inlet and outlet line communicating with the inner portion of the chamber is disposed on the first liquid chamber; and a second liquid inlet and outlet line communicating with the inner portion of the chamber is disposed on the second liquid chamber;
多孔介质、 第一固体电解质均分别与第一液体腔室相连通， 多孔介质、 第二固体电解质均分别与第二液体腔室相连通； 第一气体扩散电极与第一 氢气腔室相连通； 第二气体扩散电极与第二氢气腔室相连通；
于第一气体扩散电极和第二气体扩散电极间施加一外电压， 即可实现 第一液体腔室和第二液体腔室间液体的输送。 The porous medium and the first solid electrolyte are respectively connected to the first liquid chamber, and the porous medium and the second solid electrolyte are respectively connected to the second liquid chamber; the first gas diffusion electrode is in communication with the first hydrogen chamber; The second gas diffusion electrode is in communication with the second hydrogen chamber; The external liquid is applied between the first gas diffusion electrode and the second gas diffusion electrode to realize the liquid transfer between the first liquid chamber and the second liquid chamber.
所述多孔介质为平板状结构， 所述第一和第二液体腔室、 第一和第二 固体电解质、 第一和第二气体扩散电极、 第一和第二氢气腔室依次分别位 于平板状多孔介质的两侧， 即第一氢气腔室、 第一气体扩散电极、 第一固 体电解质、 第一液体腔室、 多孔介质、 第二液体腔室、 第二固体电解质、 第二气体扩散电极、 第二氢气腔室依次叠合， 形成一平板状结构的电渗泵; 或； 所述多孔介质为圆筒状结构， 圆筒状第一和第二液体腔室、 圆筒 状第一和第二固体电解质、 圆筒状第一和第二气体扩散电极、 圆筒状第一 和第二氢气腔室依次分别以同轴排布的方式位于圆筒状扩孔介质的内外两 侧， 即第一氢气腔室、 第一气体扩散电极、 第一固体电解质、 第一液体腔 室、 多孔介质、 第二液体腔室、 第二固体电解质、 第二气体扩散电极、 第 二氢气腔室依次同轴穿套， 形成一圆柱状结构的电渗泵。 The porous medium is a flat structure, and the first and second liquid chambers, the first and second solid electrolytes, the first and second gas diffusion electrodes, and the first and second hydrogen chambers are respectively in a flat shape Both sides of the porous medium, that is, the first hydrogen chamber, the first gas diffusion electrode, the first solid electrolyte, the first liquid chamber, the porous medium, the second liquid chamber, the second solid electrolyte, the second gas diffusion electrode, The second hydrogen chambers are sequentially stacked to form an electroosmotic pump of a flat structure; or; the porous medium is a cylindrical structure, cylindrical first and second liquid chambers, cylindrical first and first The two solid electrolytes, the cylindrical first and second gas diffusion electrodes, and the cylindrical first and second hydrogen chambers are respectively disposed on the inner and outer sides of the cylindrical reaming medium in a coaxial arrangement, that is, a hydrogen chamber, a first gas diffusion electrode, a first solid electrolyte, a first liquid chamber, a porous medium, a second liquid chamber, a second solid electrolyte, a second gas diffusion electrode, and a second hydrogen chamber Sequentially sleeved coaxially, forming a cylindrical electroosmotic pump structure.
所述多孔介质的材料或为多孔玻璃、 二氧化硅、 氧化铝中的一种， 或 为含 -NH2、 -C00H、 -S03H、 -0H、 季氨、 季憐、 咪唑、 胍官能团中一种或 两种以上的高分子材料， 或为表面涂覆有上述材料中一种或两种以上的多 孔材料。 The material of the porous medium is either one of porous glass, silica, alumina, or contains -NH 2 , -C00H, -S0 3 H, -0H, quaternary ammonia, quaternary, imidazole, hydrazine functional groups. One or two or more kinds of polymer materials, or a porous material whose surface is coated with one or two or more of the above materials.
所述多孔介质的孔径为 lOnm-ΙΟμιη; The pore diameter of the porous medium is lOnm-ΙΟμιη;
所述多孔介质的孔径同待输送液体与多孔介质壁面接触所形成双电层 的特征厚度的比值为 0.1-50; The ratio of the pore size of the porous medium to the characteristic thickness of the electric double layer formed by the liquid to be transported in contact with the wall surface of the porous medium is 0.1-50;
所述多孔介质或多孔介质表面涂覆的材料在待输送液体中的 Zeta电势 绝对值大于 20 mV。 The porous medium or porous medium surface coated material has an absolute Zeta potential in the liquid to be transported greater than 20 mV.
所述第一固体电解质和所述第二固体电解质为能够传导 H+的固体电解 质， 且所述第一固体电解质和所述第二固体电解质为不溶于待输送液体的 固体电解质； The first solid electrolyte and the second solid electrolyte are solid electrolytes capable of conducting H + , and the first solid electrolyte and the second solid electrolyte are solid electrolytes insoluble in a liquid to be transported;
或， 所述第一固体电解质和所述第二固体电解质为能够传导 OH-的固 体电解质， 且所述第一固体电解质和所述第二固体电解质为不溶于待输送 液体的固体电解质。 Or, the first solid electrolyte and the second solid electrolyte are solid electrolytes capable of conducting OH-, and the first solid electrolyte and the second solid electrolyte are solid electrolytes insoluble in a liquid to be transported.
所述能够传导 H+的固体电解质为磺酸型质子交换膜、 羧酸型子质交换 膜中的一种； The solid electrolyte capable of conducting H + is one of a sulfonic acid type proton exchange membrane and a carboxylic acid type daughter exchange membrane;
或， 所述能够传导 OH-的固体电解质为季氨型、 季憐型、 咪唑型、 胍 型阴离子交换膜中的一种。 Alternatively, the OH-permeable solid electrolyte is one of a quaternary ammonia type, a quaternary type, an imidazole type, and a hydrazine type anion exchange membrane.
采用所述能够传导 H+的固体电解质时， 多孔介质所用材料同输送液的 Zeta电势为负值； When the solid electrolyte capable of conducting H + is used, the material used for the porous medium has a negative Zeta potential with the transport liquid;
或， 采用所述能够传导 OH-的固体电解质时， 多孔介质所用材料同输 送液的 Zeta电势为正值。
所述多孔介质与第一和第二固体电解质之间的间距为 0.1 mm-10 cm。 所述第一和第二氢气腔室或为一体式结构、 或为分体式连通结构、 或 为分体式独立结构。 Alternatively, when the solid electrolyte capable of conducting OH- is used, the material used for the porous medium has a positive Zeta potential with the transport liquid. The distance between the porous medium and the first and second solid electrolytes is from 0.1 mm to 10 cm. The first and second hydrogen chambers are either a unitary structure, a split type communication structure, or a split type independent structure.
当所述第一和第二氢气腔室为所述一体式结构时， 所述腔室内或含有 气态氢气， 或含有储氢材料， 或同时含有气态氢气和储氢材料； When the first and second hydrogen chambers are in the unitary structure, the chamber may contain gaseous hydrogen, or contain hydrogen storage materials, or both gaseous hydrogen and hydrogen storage materials;
或， 当所述第一和第二氢气腔室为所述分体式连通结构时， 所述第一 和 /或第二腔室内或含有气态氢气， 或含有储氢材料， 或同时含有气态氢气 和储氢材料； Or, when the first and second hydrogen chambers are in the split communication structure, the first and/or second chambers either contain gaseous hydrogen, or contain hydrogen storage materials, or both gaseous hydrogen and Hydrogen storage material;
或， 当所述第一和第二氢气腔室为所述分体式独立结构时， 所述第一 和第二腔室或分别与氢气气源相连； 或分别含有储氢材料； 或分别与氢气 气源相连的同时含有储氢材料。 Or, when the first and second hydrogen chambers are the separated independent structures, the first and second chambers are respectively connected to a hydrogen gas source; or respectively contain a hydrogen storage material; or respectively, and hydrogen The gas source is connected to contain hydrogen storage materials.
所述第一气体扩散电极和第二气体扩散电极分别为电催化氧化和电催 化还原氢气的多孔电极。 The first gas diffusion electrode and the second gas diffusion electrode are respectively porous electrodes for electrocatalytic oxidation and electrocatalytic reduction of hydrogen.
所述第一和第二气体扩散电极中的电催化剂分别为下述催化剂材料中 的一种或二种以上： The electrocatalysts in the first and second gas diffusion electrodes are each one or more of the following catalyst materials:
采用所述能够传导 H+的固体电解质时，电催化剂或为铂和钯中的一种、 或为铂与钯、 钌、 镍、 铬、 钴、 铜、 钨、 铁、 铈、 钼、 铅中一种的合金； 或为碳载上述催化剂中的一种；或为非金属氢气电催化氧化 /还原电催化剂; 采用所述能够传导 OH-的固体电解质时， 电催化剂或为铂、 钯和镍中 的一种、 或为铂与钯、 钌、 镍、 铬、 钴、 铜、 钨、 铁、 铈、 钼、 铅中一种 的合金； 或为碳载上述催化剂中的一种； 或为非金属氢气电催化氧化 /还原 电催化剂。 When the solid electrolyte capable of conducting H + is used, the electrocatalyst is either one of platinum and palladium, or is platinum and palladium, rhodium, nickel, chromium, cobalt, copper, tungsten, iron, ruthenium, molybdenum, lead An alloy; or one of the above catalysts on carbon; or a non-metal hydrogen electrocatalytic oxidation/reduction electrocatalyst; when the solid electrolyte capable of conducting OH- is used, the electrocatalyst is platinum, palladium and nickel One of or an alloy of platinum and one of palladium, rhodium, nickel, chromium, cobalt, copper, tungsten, iron, ruthenium, molybdenum, or lead; or one of the above catalysts on carbon; Metal hydrogen electrocatalytic oxidation/reduction electrocatalyst.
与现有技术相比， 本发明所述电渗泵具有结构简单且易于实现， 工作 电压低且工作时无气泡出现， 可实现连续稳定高效运行。 Compared with the prior art, the electroosmotic pump of the invention has the advantages of simple structure and easy realization, low working voltage and no bubbles during operation, and can realize continuous stable and high-efficiency operation.
附图说明 DRAWINGS
图 1为本发明所述电渗泵的原理示意图。 Figure 1 is a schematic view of the principle of the electroosmotic pump of the present invention.
其中， 1和 Γ为分别第一和第二气体扩散电极； 2和 2'分别为第一和第 二固体电解质； 3和 3'分别为第一和第二液体腔； 4为多孔介质； 5和 5' 分别为第一和第二氢气腔。 Wherein 1 and Γ are first and second gas diffusion electrodes, respectively; 2 and 2' are first and second solid electrolytes, respectively; 3 and 3' are first and second liquid chambers, respectively; 4 is a porous medium; And 5' are the first and second hydrogen chambers, respectively.
图 2为电渗泵结构示意图。 Figure 2 is a schematic view of the structure of the electroosmotic pump.
其中 1和 Γ为分别第一和第二气体扩散电极； 2和 2'分别为第一和第 二电解质； 4为多孔介质； 5和 5'分别为第一和第二氢气腔； 26为连接第一 和第二氢气腔室的通道； 3和 3'分别为第一和第二液体腔室； 22为液体进 口； 23为液体出口； 21和 21 '分别为第一和第二导电端板； 24为多孔介质 固定板； 25为密封垫。 Wherein 1 and Γ are first and second gas diffusion electrodes, respectively; 2 and 2' are first and second electrolytes, respectively; 4 is a porous medium; 5 and 5' are first and second hydrogen chambers, respectively; Channels of the first and second hydrogen chambers; 3 and 3' are first and second liquid chambers, respectively; 22 is a liquid inlet; 23 is a liquid outlet; 21 and 21' are first and second conductive end plates, respectively 24 is a porous medium fixing plate; 25 is a gasket.
图 3为实施例 1中电渗泵输送去离子水时流量同电压的关系图。
图 4为实施例 3中电渗泵输送不同浓度甲醇水溶液时甲醇浓度同流量 关系图。 Fig. 3 is a graph showing the relationship between the flow rate and the voltage when the electroosmotic pump of the first embodiment delivers deionized water. Fig. 4 is a graph showing the relationship between the methanol concentration and the flow rate when the electroosmotic pump of Example 3 delivers different concentrations of methanol aqueous solution.
具体实 式 Specific form
下面结合实施例对本发明作详细的描述。 当然本发明并不仅限于下述 具体的实施例。 The invention will now be described in detail in connection with the embodiments. Of course, the invention is not limited to the specific embodiments described below.
以下所述实施例中电渗泵的结构如图 2所示。 具体为： The structure of the electroosmotic pump in the embodiment described below is as shown in Fig. 2. Specifically:
一种电渗泵， 包括一平板状多孔介质， 分别位于所述多孔介质相对两 侧的第一液体腔室和第二液体腔室； An electroosmotic pump comprising a flat porous medium, a first liquid chamber and a second liquid chamber respectively located on opposite sides of the porous medium;
于第一液体腔室远离所述多孔介质一侧设有第一固体电解质， 第一固 体电解质与第一液体腔室相邻接； 于第二液体腔室远离所述多孔介质一侧 设有第二固体电解质， 第二固体电解质与第二液体腔室相邻接； Providing a first solid electrolyte on a side of the first liquid chamber away from the porous medium, the first solid electrolyte is adjacent to the first liquid chamber; and the second liquid chamber is disposed on a side away from the porous medium a second solid electrolyte, the second solid electrolyte is adjacent to the second liquid chamber;
于第一固体电解质远离多孔介质一侧紧密贴接的设有第一气体扩散电 极； 于第二固体电解质远离多孔介质一侧紧密贴接的设有第二气体扩散电 极； a first gas diffusion electrode is disposed in close contact with the first solid electrolyte away from the porous medium; and a second gas diffusion electrode is closely attached to the second solid electrolyte away from the porous medium;
于第一气体扩散电极远离多孔介质一侧设有第一氢气腔室； 于第二气 体扩散电极远离多孔介质一侧设有第二氢气腔室； a first hydrogen chamber is disposed on a side of the first gas diffusion electrode away from the porous medium; and a second hydrogen chamber is disposed on a side of the second gas diffusion electrode away from the porous medium;
于第一液体腔室上设有与腔室内部相连通的第一液体进出口管路； 于 第二液体腔室上设有与腔室内部相连通的第二液体进出口管路； a first liquid inlet and outlet line communicating with the inner portion of the chamber is disposed on the first liquid chamber; and a second liquid inlet and outlet line communicating with the inner portion of the chamber is disposed on the second liquid chamber;
多孔介质、 第一固体电解质均分别与第一液体腔室相连通， 多孔介质、 第二固体电解质均分别与第二液体腔室相连通； 第一气体扩散电极与第一 氢气腔室相连通； 第二气体扩散电极与第二氢气腔室相连通； The porous medium and the first solid electrolyte are respectively connected to the first liquid chamber, and the porous medium and the second solid electrolyte are respectively connected to the second liquid chamber; the first gas diffusion electrode is in communication with the first hydrogen chamber; The second gas diffusion electrode is in communication with the second hydrogen chamber;
于端板 21和端板 21 '间施加一外电压， 即可实现第一液体腔室和第二 液体腔室间液体的输送。 实施例 1 : An external voltage is applied between the end plate 21 and the end plate 21' to effect liquid transfer between the first liquid chamber and the second liquid chamber. Example 1
气体扩散电极制备方法如下： 电极所用支撑层为 TGP-060。 其上涂覆 有 0.6mg/cm2的碳粉、 PTFE混合物， 其中 PTFE的质量分数为 30%。 之后 再在其上刮涂催化剂浆液。 浆液由 Pt/C(60 % wt. JM公司）、 浓度为 5%的 Nafion溶液、 乙醇构成； 其中 Nafion、 Pt/C、 乙醇质量比为 1 : 4: 20。 本 实施例第一第二气体扩散电极相同， 均用上述制备的电极。 The gas diffusion electrode is prepared as follows: The support layer for the electrode is TGP-060. It was coated with 0.6 mg/cm 2 of carbon powder and PTFE mixture, wherein the mass fraction of PTFE was 30%. The catalyst slurry is then applied to it. The slurry consisted of Pt/C (60% wt. JM), Nafion solution with a concentration of 5%, and ethanol; the mass ratio of Nafion, Pt/C, and ethanol was 1:4:20. In the present embodiment, the first and second gas diffusion electrodes are the same, and the electrodes prepared above are used.
所用电解质为 Nafion-212膜， 本实施例第一第二电解质相同。 将上述 所制备气体扩散电极 Nafion-212膜一侧， 在 120°C、 2000磅压力下热压一 分钟制成一体化膜电极。 本实施例所用电极的尺寸为 4 cmx4 cm。 The electrolyte used was a Nafion-212 film, and the first and second electrolytes of this example were the same. One side of the gas diffusion electrode Nafion-212 film prepared above was heat-pressed at 120 ° C under a pressure of 2000 lb for one minute to form an integrated membrane electrode. The size of the electrode used in this embodiment was 4 cm x 4 cm.
所用多孔介质 4为厚 4.5 mm, 直径 4 cm的烧结多孔玻璃（德国 R0BU 公司）， 其平均孔径约为 1μηι。 The porous medium 4 used was a sintered porous glass (R0BU, Germany) having a thickness of 4.5 mm and a diameter of 4 cm, and an average pore diameter of about 1 μm.
所用第一和第二端板为镀金的不锈钢板， 端板上有蛇形流道作为氢气
腔室。 The first and second end plates used are gold-plated stainless steel plates with serpentine flow channels on the end plates as hydrogen Chamber.
第一和第二氢气腔室内充满 H2。 The first and second hydrogen chambers are filled with H 2 .
液体腔室的厚度为 lmm， 即多孔介质与第一和第二固体电解质之间的 间距为 1 mm。 The thickness of the liquid chamber is 1 mm, that is, the distance between the porous medium and the first and second solid electrolytes is 1 mm.
使用之前需先灌泵， 既将待输送液体 （此处为去离子水） 从进口 22通 入至充满液体腔从出口 23流出， 此时保持待输液体同进口 22连通。 Before use, the pump is required to pump the liquid to be transported (here, deionized water) from the inlet 22 to the filled liquid chamber and exit the outlet 23, at which time the liquid to be delivered is kept in communication with the inlet 22.
使用电化学工作站 1287分别施加 0.3V、 0.5V、 IV、 1.5V电压于两端 板 （工作电极接端板 21， 参比电极接端板 2Γ上的极耳）， 测量从出口 23 流出液体流量大小。 The electrochemical workstation 1287 was used to apply a voltage of 0.3 V, 0.5 V, IV, 1.5 V to the two end plates (the working electrode terminal plate 21 and the tab on the reference electrode terminal plate 2), and the flow rate of the liquid flowing out from the outlet 23 was measured. size.
所测流量同电压曲线如图 3所示。 The measured flow and voltage curves are shown in Figure 3.
实施例 2: Example 2:
电渗泵所用材质及灌泵同实施例 1。 The material used for the electroosmotic pump and the pump are the same as in the first embodiment.
使用 5号干电池 （南孚， 1.5V) 作为电源驱动电渗泵 （工作电极接端 板 21，参比电极接端板 2Γ上的极耳），测得从出口 23流出去离子水的流量 为 0·13μ!7ηΰη。 Using a No. 5 dry battery (Nanfu, 1.5V) as a power source driving electroosmotic pump (working electrode terminal plate 21, reference electrode terminal plate 2 的 pole), the flow rate of ion water flowing out from the outlet 23 was measured as 0·13μ!7ηΰη.
实施例 3: Example 3:
电渗泵所用材质及灌泵同实施例 1。 The material used for the electroosmotic pump and the pump are the same as in the first embodiment.
输送液体为分别为 0.5Μ, 1Μ， 2Μ， 3Μ， 5Μ的甲醇水溶液。 The transport liquid was an aqueous solution of methanol of 0.5 Μ, 1 Μ, 2 Μ, 3 Μ, 5 分别, respectively.
使用电化学工作站 1287分别施加 IV电压于两端板 （工作电极接端板 21， 参比电极接端板 2Γ上的极耳）， 测量从出口 23流出液体流量大小。 The electrochemical flow station 1287 was used to apply IV voltage to the two end plates (the working electrode terminal plate 21, the reference electrode terminal plate 2), and the flow rate of the liquid flowing out from the outlet 23 was measured.
所测流量同甲醇浓度曲线如图 4所示。
The measured flow rate and methanol concentration curve are shown in Figure 4.
Claims
1. 一种电渗泵， 其特征在于： 包括一多孔介质， 分别位于所述多孔介 质相对两侧的第一液体腔室和第二液体腔室； An electroosmotic pump, comprising: a porous medium, a first liquid chamber and a second liquid chamber respectively located on opposite sides of the porous medium;
于第一液体腔室远离所述多孔介质一侧设有第一固体电解质， 第一固 体电解质与第一液体腔室相邻接； 于第二液体腔室远离所述多孔介质一侧 设有第二固体电解质， 第二固体电解质与第二液体腔室相邻接； Providing a first solid electrolyte on a side of the first liquid chamber away from the porous medium, the first solid electrolyte is adjacent to the first liquid chamber; and the second liquid chamber is disposed on a side away from the porous medium a second solid electrolyte, the second solid electrolyte is adjacent to the second liquid chamber;
于第一固体电解质远离多孔介质一侧紧密贴接的设有第一气体扩散电 极； 于第二固体电解质远离多孔介质一侧紧密贴接的设有第二气体扩散电 极； a first gas diffusion electrode is disposed in close contact with the first solid electrolyte away from the porous medium; and a second gas diffusion electrode is closely attached to the second solid electrolyte away from the porous medium;
于第一气体扩散电极远离多孔介质一侧设有第一氢气腔室； 于第二气 体扩散电极远离多孔介质一侧设有第二氢气腔室； a first hydrogen chamber is disposed on a side of the first gas diffusion electrode away from the porous medium; and a second hydrogen chamber is disposed on a side of the second gas diffusion electrode away from the porous medium;
于第一液体腔室上设有与腔室内部相连通的第一液体进出口管路； 于 第二液体腔室上设有与腔室内部相连通的第二液体进出口管路； a first liquid inlet and outlet line communicating with the inner portion of the chamber is disposed on the first liquid chamber; and a second liquid inlet and outlet line communicating with the inner portion of the chamber is disposed on the second liquid chamber;
多孔介质、 第一固体电解质均分别与第一液体腔室相连通， 多孔介质、 第二固体电解质均分别与第二液体腔室相连通； 第一气体扩散电极与第一 氢气腔室相连通； 第二气体扩散电极与第二氢气腔室相连通； The porous medium and the first solid electrolyte are respectively connected to the first liquid chamber, and the porous medium and the second solid electrolyte are respectively connected to the second liquid chamber; the first gas diffusion electrode is in communication with the first hydrogen chamber; The second gas diffusion electrode is in communication with the second hydrogen chamber;
于第一气体扩散电极和第二气体扩散电极间施加一外电压， 即可实现 第一液体腔室和第二液体腔室间液体的输送。 The external liquid is applied between the first gas diffusion electrode and the second gas diffusion electrode to effect liquid transfer between the first liquid chamber and the second liquid chamber.
2. 如权利要求 1所述电渗泵， 其特征在于： 2. The electroosmotic pump of claim 1 wherein:
所述多孔介质为平板状结构， 所述第一和第二液体腔室、 第一和第二 固体电解质、 第一和第二气体扩散电极、 第一和第二氢气腔室依次分别位 于平板状多孔介质的两侧， 即第一氢气腔室、 第一气体扩散电极、 第一固 体电解质、 第一液体腔室、 多孔介质、 第二液体腔室、 第二固体电解质、 第二气体扩散电极、 第二氢气腔室依次叠合， 形成一平板状结构的电渗泵; 或， 所述多孔介质为圆筒状结构， 圆筒状第一和第二液体腔室、 圆筒 状第一和第二固体电解质、 圆筒状第一和第二气体扩散电极、 圆筒状第一 和第二氢气腔室依次分别以同轴排布的方式位于圆筒状扩孔介质的内外两 侧， 即第一氢气腔室、 第一气体扩散电极、 第一固体电解质、 第一液体腔 室、 多孔介质、 第二液体腔室、 第二固体电解质、 第二气体扩散电极、 第 二氢气腔室依次同轴穿套， 形成一圆柱状结构的电渗泵。 The porous medium is a flat structure, and the first and second liquid chambers, the first and second solid electrolytes, the first and second gas diffusion electrodes, and the first and second hydrogen chambers are respectively in a flat shape Both sides of the porous medium, that is, the first hydrogen chamber, the first gas diffusion electrode, the first solid electrolyte, the first liquid chamber, the porous medium, the second liquid chamber, the second solid electrolyte, the second gas diffusion electrode, The second hydrogen chambers are sequentially stacked to form an electroosmotic pump of a flat structure; or, the porous medium has a cylindrical structure, cylindrical first and second liquid chambers, cylindrical first and first The two solid electrolytes, the cylindrical first and second gas diffusion electrodes, and the cylindrical first and second hydrogen chambers are respectively disposed on the inner and outer sides of the cylindrical reaming medium in a coaxial arrangement, that is, a hydrogen chamber, a first gas diffusion electrode, a first solid electrolyte, a first liquid chamber, a porous medium, a second liquid chamber, a second solid electrolyte, a second gas diffusion electrode, and a second hydrogen chamber Sequentially sleeved coaxially, forming a cylindrical electroosmotic pump structure.
3. 如权利要求 1或 2任一所述电渗泵， 其特征在于： 所述多孔介质的 材料或为多孔玻璃、 二氧化硅、 氧化铝中的一种， 或为含 -NH2、 -C00H、 -S03H、 -0H、 季氨、 季憐、 咪唑、 胍官能团中一种或两种以上的高分子材 料， 或为表面涂覆有上述材料中一种或两种以上的多孔材料。 The electroosmotic pump according to any one of claims 1 to 2, wherein the material of the porous medium is one of porous glass, silica, alumina, or contains -NH 2 , One or two or more kinds of polymer materials of C00H, -S0 3 H, -0H, quaternary ammonia, quaternary, imidazole, hydrazine functional groups, or porous materials having one or more of the above materials coated on the surface .
4. 如权利要求 3 所述电渗泵， 其特征在于： 所述多孔介质的孔径为
lOnm-ΙΟμιη; 所述多孔介质的孔径同待输送液体与多孔介质壁面接触所形 成双电层的特征厚度的比值为 0.1-50;所述多孔介质或多孔介质表面涂覆的 材料在待输送液体中的 Zeta电势绝对值大于 20 mV。 4. The electroosmotic pump according to claim 3, wherein: the pore diameter of said porous medium is lOnm-ΙΟμιη; the ratio of the pore size of the porous medium to the characteristic thickness of the electric double layer formed by contacting the liquid to be transported with the porous medium wall surface is 0.1-50; the porous medium or porous medium surface coated material is to be transported The absolute value of the Zeta potential is greater than 20 mV.
5. 如权利要求 1或 2所述电渗泵， 其特征在于： 所述第一固体电解质 和所述第二固体电解质为能够传导 H+的固体电解质， 且所述第一固体电解 质和所述第二固体电解质为不溶于待输送液体的固体电解质； The electroosmotic pump according to claim 1 or 2, wherein: the first solid electrolyte and the second solid electrolyte are solid electrolyte capable of conducting H + , and the first solid electrolyte and the The second solid electrolyte is a solid electrolyte that is insoluble in the liquid to be transported;
或， 所述第一固体电解质和所述第二固体电解质为能够传导 OH-的固 体电解质， 且所述第一固体电解质和所述第二固体电解质为不溶于待输送 液体的固体电解质。 Or, the first solid electrolyte and the second solid electrolyte are solid electrolytes capable of conducting OH-, and the first solid electrolyte and the second solid electrolyte are solid electrolytes insoluble in a liquid to be transported.
6. 如权利要求 5所述电渗泵， 其特征在于： 所述能够传导 H+的固体电 解质为磺酸型质子交换膜、 羧酸型子质交换膜中的一种； The electroosmotic pump according to claim 5, wherein: the solid electrolyte capable of conducting H + is one of a sulfonic acid type proton exchange membrane and a carboxylic acid type proton exchange membrane;
或， 所述能够传导 OH-的固体电解质为季氨型、 季憐型、 咪唑型、 胍 型阴离子交换膜中的一种。 Alternatively, the OH-permeable solid electrolyte is one of a quaternary ammonia type, a quaternary type, an imidazole type, and a hydrazine type anion exchange membrane.
7. 如权利要求 5或 6所述电渗泵， 其特征在于： 7. An electroosmotic pump according to claim 5 or 6, characterized in that:
采用所述能够传导 H+的固体电解质时， 多孔介质所用材料同输送液的When the solid electrolyte capable of conducting H + is used, the material used for the porous medium is the same as that of the transport liquid
Zeta电势为负值； Zeta potential is negative;
或， 采用所述能够传导 OH-的固体电解质时， 多孔介质所用材料同输 送液的 Zeta电势为正值。 Alternatively, when the solid electrolyte capable of conducting OH- is used, the material used for the porous medium has a positive Zeta potential with the transport liquid.
8. 如权利要求 1或 2所述电渗泵， 其特征在于： 所述多孔介质与第一 和第二固体电解质之间的间距为 0.1 mm-10 cm。 The electroosmotic pump according to claim 1 or 2, wherein the distance between the porous medium and the first and second solid electrolytes is 0.1 mm to 10 cm.
9. 如权利要求 1或 2所述电渗泵， 其特征在于： 所述第一和第二氢气 腔室或为一体式结构、 或为分体式连通结构、 或为分体式独立结构。 The electroosmotic pump according to claim 1 or 2, wherein: said first and second hydrogen chambers are either a unitary structure, a split type communication structure, or a split type independent structure.
10. 如权利要求 9所述电渗泵， 其特征在于： 10. The electroosmotic pump of claim 9 wherein:
当所述第一和第二氢气腔室为所述一体式结构时， 所述腔室内或含有 气态氢气， 或含有储氢材料， 或同时含有气态氢气和储氢材料； When the first and second hydrogen chambers are in the unitary structure, the chamber may contain gaseous hydrogen, or contain hydrogen storage materials, or both gaseous hydrogen and hydrogen storage materials;
或， 当所述第一和第二氢气腔室为所述分体式连通结构时， 所述第一 和 /或第二腔室内或含有气态氢气， 或含有储氢材料， 或同时含有气态氢气 和储氢材料； Or, when the first and second hydrogen chambers are in the split communication structure, the first and/or second chambers either contain gaseous hydrogen, or contain hydrogen storage materials, or both gaseous hydrogen and Hydrogen storage material;
或， 当所述第一和第二氢气腔室为所述分体式独立结构时， 所述第一 和第二腔室或分别与氢气气源相连； 或分别含有储氢材料； 或分别与氢气 气源相连的同时含有储氢材料。 Or, when the first and second hydrogen chambers are the separated independent structures, the first and second chambers are respectively connected to a hydrogen gas source; or respectively contain a hydrogen storage material; or respectively, and hydrogen The gas source is connected to contain hydrogen storage materials.
11. 如权利要求 1或 2所述电渗泵， 其特征在于： 所述第一气体扩散电 极和第二气体扩散电极分别为电催化氧化和电催化还原氢气的多孔电极。
The electroosmotic pump according to claim 1 or 2, wherein the first gas diffusion electrode and the second gas diffusion electrode are porous electrodes for electrocatalytic oxidation and electrocatalytic reduction of hydrogen, respectively.
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| CN201310694587.6 | 2013-12-15 |
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| KR102101938B1 (en) * | 2018-08-20 | 2020-04-17 | 이오플로우(주) | Pump |
| CN109482248B (en) * | 2018-11-07 | 2020-07-17 | 浙江大学 | Low-pressure electroosmosis pump based on nano porous film |
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| US20060254913A1 (en) * | 2005-05-10 | 2006-11-16 | Myers Alan M | Orientation independent electroosmotic pump |
| CN101153618A (en) * | 2006-09-27 | 2008-04-02 | 卡西欧计算机株式会社 | Connecting structure of a liquid sending apparatus, fuel-cell type electricity generating apparatus, and electronic device |
| US20130041353A1 (en) * | 2010-03-09 | 2013-02-14 | Board Of Regents Of The University Of Texas System | Electro-osmotic pumps, systems, methods, and compositions |
| CN103163198A (en) * | 2011-12-15 | 2013-06-19 | 中国科学院大连化学物理研究所 | Liquid concentration detection apparatus and method for liquid concentration detection by using same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060254913A1 (en) * | 2005-05-10 | 2006-11-16 | Myers Alan M | Orientation independent electroosmotic pump |
| CN101153618A (en) * | 2006-09-27 | 2008-04-02 | 卡西欧计算机株式会社 | Connecting structure of a liquid sending apparatus, fuel-cell type electricity generating apparatus, and electronic device |
| US20130041353A1 (en) * | 2010-03-09 | 2013-02-14 | Board Of Regents Of The University Of Texas System | Electro-osmotic pumps, systems, methods, and compositions |
| CN103163198A (en) * | 2011-12-15 | 2013-06-19 | 中国科学院大连化学物理研究所 | Liquid concentration detection apparatus and method for liquid concentration detection by using same |
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