CN101003905A - Membrane reactor of fuel cell, and method for using the reactor to prepare hydrogen dioxide - Google Patents
Membrane reactor of fuel cell, and method for using the reactor to prepare hydrogen dioxide Download PDFInfo
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- CN101003905A CN101003905A CNA2006101477371A CN200610147737A CN101003905A CN 101003905 A CN101003905 A CN 101003905A CN A2006101477371 A CNA2006101477371 A CN A2006101477371A CN 200610147737 A CN200610147737 A CN 200610147737A CN 101003905 A CN101003905 A CN 101003905A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Abstract
This invention discloses a fuel cell membrane reactor and a method for preparing H2O2 by using the reactor. The reactor is composed of a shell, a cathode chamber, an anode chamber, a cathode, and an anode. The cathode and the anode are connected by outer circuit, which comprises an oxygen inlet pipe, a hydrogen inlet pipe, an acidic electrolyte solution inlet pipe, an oxygen output pipe, a hydrogen outlet pipe, and an acidic electrolyte solution outlet pipe. The cathode chamber is a narrow electrolyte passage, and electrolyte solution can slowly flow through the passage. The anode chamber is a narrow chamber, in which is electrolyte solution. A cation permeation membrane is set between the cathode and anode. This invention discloses a fuel cell membrane reactor that can generate H2O2 and power energy from hydrogen and oxygen by electrochemical reaction, and is clean and not explosive.
Description
Technical field
The present invention relates to a kind of method for preparing hydrogen peroxide, more particularly relate to a kind of method for preparing hydrogen peroxide by fuel battery reaction device.
Background technology
Hydrogen peroxide is a kind of important Inorganic Chemicals and fine chemical product, is widely used in that chemical is synthetic, a plurality of fields such as bleaching, metalliferous mineral processing, environmental protection, electronics, military project and space flight of paper pulp, paper and textiles.Along with the fast development of global economy, the Application Areas of hydrogen peroxide is constantly opened up, and its market demand is also in continuous growth, and it is well sold and in short supply market to occur.The more general employing of suitability for industrialized production hydrogen peroxide both at home and abroad is anthraquinone, and further perfect from improving hydrogenation catalyst efficient and aspects such as life-span, reactor efficiency and control technique.In addition, many scientific research institutions, major company and producer are just in active research with develop other brand-new production approach, and these methods mainly contain air cathode method, methyl-benzyl alcohol oxidation style, isopropanol oxidation method and hydrogen-oxygen direct synthesis technique etc.These methods respectively have relative merits, are left to be desired.The hydrogen-oxygen direct synthesis technique comprises that hydrogen-oxygen is mixed into reactor by a certain percentage and carries out catalyzed reaction production hydrogen peroxide, this method is a kind of direct, the simplest and the most direct and the most most economical synthetic method with environment protection significance, this method has been removed the many equipment and the raw material of anthraquinone needs, installation cost can be than anthraquinone minimizing 50%, product cost also significantly reduces, usually select Pd as catalyzer, aluminium, silicon and carbon also are the auxiliary agents of using always, but hydrogen-oxygen mixed catalytic synthesis method has two main drawbacks, the first, H
2And O
2In a very big concentration range content explosive, therefore need to adjust H
2And O
2Ratio, perhaps add thinner at reaction species; Second, on selection of catalysts, the catalyzer that generally is used to produce hydrogen peroxide also is easy to make simultaneously oxidation of hydrogen Cheng Shui, perhaps make hydrogen peroxide decomposition, potential safety hazard becomes the principal element of restriction hydrogen-oxygen direct synthesis technique preparing hydrogen peroxide, requirement to production technique and equipment is very harsh, also is difficult to realize for the moment industrialization, needs to do further to improve.
Fuel cell membrane reactor (FCMR) has and pollutes little, energy-efficient, flexible operation, is convenient to advantage such as control.FCMR mainly contains four kinds of forms, wherein is ionogen with the acidic liquid and is that electrolytical FCMR processing is comparatively simple with the proton film, and service temperature is low, and potentiality to be exploited will be very big.Fuel cell has been used for car power source, and is about to commercialization, the promotion that these achievements are strong FCMR produce and development, and cause chemistry, chemical research personnel concern, studies show that this type of reactor internal resistance is less, operation control is flexible.Yet because the complicacy of fuel cell membranes reactor technology, many problems wait to solve, and at different types of reaction, how to design multi-form reactor and electrode catalyst, how to determine that feeding manner and electrode complete processing all need conscientiously research.Occurred some abroad and utilized fuel cell membranes reactor made hydrogen peroxide and the symbiotic research report of electric energy, but all be in the laboratory exploratory stage, reactor size is very little, and the current density that produces in the reaction process is little, and Reactive Mechanism of Electrode it be unclear that.If it is big that reactor size becomes, then will become outstanding when the mass transfer rule on the porous electrode, Potential distribution rule and interpolar problem of transmission.
Summary of the invention
Technical problem to be solved by this invention provides a kind of newly-designed fuel cell membrane reactor, and utilizes this fuel cell membrane reactor to produce hydrogen peroxide, pollutes heavy or shortcoming such as set off an explosion easily to solve in the prior art hydrogen peroxide manufacture.
The technical solution used in the present invention: a kind of fuel cell membrane reactor, by housing, cathode compartment, anolyte compartment and negative electrode, anode surrounds, cloudy, connect by external circuit between the positive electrode, oxygen inlet pipe wherein, hydrogen inlet pipe and acidic electrolyte solution inlet pipe are respectively oxygen, the inlet pipe of hydrogen and acidic electrolyte solution, oxygen goes out pipe, hydrogen goes out pipe and acidic electrolyte solution and goes out pipe and be respectively oxygen, hydrogen and acidic electrolyte solution go out pipe, it is characterized in that: cathode compartment is a narrow electrolyte channels, electrolyte solution can slowly flow through through this passage, the anolyte compartment is a narrow cavity, wherein hold electrolyte solution, between negative electrode and anode, be equipped with a penetrating film of positively charged ion.
A kind of fuel cell membrane reactor, its negative electrode, anode are prepared from by following method: get an amount of 20%～60% ptfe emulsion, deionized water dilution with 2～8 times of volumes, stir, take by weighing a certain amount of catalyzer, add the ptfe emulsion after diluting, make paste after fully stirring, then paste evenly is laid on and is surrounded by aluminium foil or scribbles in the mould of remover, catalyst loadings is 10g/cm
2～30g/cm
2The content of tetrafluoroethylene is 5%～40% mass percent of catalyzer, above-mentioned mashed prod is laid on the mould, then mould is placed 40 ℃～90 ℃ in baking oven, baking 15～60min, place 40～100 order mesh current collectors after the taking-up thereon, on the mesh current collector, place two-layer aluminium foil again, press cover plate at last, above-mentioned lamina is placed under 300 ℃～360 ℃ press hot pressing 5min～25min under 25～35MPa, taking-up is placed in the retort furnace, and greatly about 300 ℃～360 ℃ following sintering 20min～50min, cooling back mold removal is taken out in the back, at 70 ℃～90 ℃, soak about 20min～40min in 10%～40% aqueous sodium hydroxide solution to remove aluminium foil or remover, clean the thick about 0.1mm～0.3mm of prepared electrode at last with deionized water; When wherein making negative electrode described catalyzer be selected from gold, platinum, palladium, platinum black, palladium black, carbon black, graphite, gac, carbon whisker, load on platinum or gold or palladium on the carbon black, load on platinum or gold or palladium on the graphite, load on platinum on the gac carbon or gold or palladium or platinum one of them, charge capacity is 0.5%～40% weight percentage of carrier, and the granularity of gold, platinum, palladium, platinum black, palladium black, carbon black, graphite or activated carbon is 10nm～200 μ m; When wherein making anode described catalyzer be selected from platinum, platinum black, palladium, palladium black, load on the carbon black platinum or or platinum black or palladium or palladium black, load on platinum or platinum black or palladium or palladium black on the graphite, load on platinum on the gac carbon or platinum black or palladium or palladium black one of them, charge capacity is 0.5%～40% weight percentage of carrier, and the granularity of platinum, platinum black, palladium, palladium black is 10nm～200 μ m.
Described mould is the square or circular mould of steel, aluminum, copper or titanium system.
Use the method for above-mentioned fuel cell membranes reactor made hydrogen peroxide, comprise the following steps: the cathode compartment and the anolyte compartment that make oxygen and hydrogen enter the fuel cell membrane reactor respectively, closed circuit also slowly flows electrolyte solution from top to bottom, hydrogen and oxygen generation electrochemical reaction, generate hydrogen peroxide, and dissolve in electrolyte solution.
Described electrolyte solution is selected from dilute sulphuric acid, hydrochloric acid or phosphoric acid.
Beneficial effect of the present invention, the present invention utilizes the achievement in research of fuel cell to develop a kind of hydrogen-oxygen that is adapted to directly by the fuel cell reaction device of electrochemical reaction symbiosis hydrogen peroxide and electric energy, and the fuel cell membrane reactor that utilizes the present invention to design is produced hydrogen peroxide and solved and pollute heavy in the prior art or shortcoming such as set off an explosion easily.
Description of drawings
Fig. 1 is a fuel cell membranes structure of reactor synoptic diagram.
Embodiment
1 couple of the present invention describes in further detail below by accompanying drawing, a kind of fuel cell membrane reactor, by housing 10, cathode compartment 11, anolyte compartment 12 and negative electrode 7, anode 9 surrounds, cloudy, connect by external circuit between the positive electrode, wherein the oxygen inlet pipe 1, hydrogen inlet pipe 2 and acidic electrolyte solution inlet pipe 3 are respectively oxygen, the inlet pipe of hydrogen and acidic electrolyte solution, oxygen goes out pipe 4, hydrogen goes out pipe 5 and acidic electrolyte solution and goes out pipe 6 and be respectively oxygen, hydrogen and acidic electrolyte solution go out pipe, it is characterized in that: cathode compartment 11 is a narrow electrolyte channels, electrolyte solution can slowly flow through through this passage, anolyte compartment 12 is a narrow cavity, wherein hold electrolyte solution, between negative electrode 7 and anode 9, be equipped with a penetrating film 8 of positively charged ion.
The negative electrode of fuel cell membrane reactor of the present invention, anode are prepared from by following method: get an amount of 20%～60% ptfe emulsion, deionized water dilution with 2～8 times of volumes, stir, take by weighing a certain amount of catalyzer, the ptfe emulsion concentration that adds after diluting is 20%～80%, make paste after fully stirring, then paste evenly is laid on and is surrounded by aluminium foil or scribbles in the mould of remover, catalyst loadings is 10g/cm
2～30g/cm
2The content of tetrafluoroethylene is 5%～40% mass percent of catalyzer, above-mentioned mashed prod is laid on the mould, then mould is placed 40 ℃～90 ℃ in baking oven, baking 15～60min, place 40～100 order mesh current collectors after the taking-up thereon, on the mesh current collector, place two-layer aluminium foil again, press cover plate at last, above-mentioned lamina is placed under 300 ℃～360 ℃ press hot pressing 5min～25min under 25～35MPa, taking-up is placed in the retort furnace, and greatly about 300 ℃～360 ℃ following sintering 20min～50min, cooling back mold removal is taken out in the back, at 70 ℃～90 ℃, soak about 20min～40min in 10%～40% aqueous sodium hydroxide solution to remove aluminium foil or remover, clean the thick about 0.1mm～0.3mm of prepared electrode at last with deionized water; When wherein making negative electrode 7 described catalyzer be selected from gold, platinum, palladium, platinum black, palladium black, carbon black, graphite, gac, carbon whisker, load on platinum or gold or palladium on the carbon black, load on platinum or gold or palladium on the graphite, load on platinum on the gac carbon or gold or palladium or platinum one of them, charge capacity is 0.5%～40% weight percentage of carrier, and the granularity of gold, platinum, palladium, platinum black, palladium black, carbon black, graphite or activated carbon is 10nm～200 μ m; When wherein making anode 9 described catalyzer be selected from platinum, platinum black, palladium, palladium black, load on the carbon black platinum or or platinum black or palladium or palladium black, load on platinum or platinum black or palladium or palladium black on the graphite, load on platinum on the gac carbon or platinum black or palladium or palladium black one of them, charge capacity is 0.5%～40% weight percentage of carrier, and the granularity of platinum, platinum black, palladium, palladium black is 10nm～200 μ m.Described mould is the square or circular mould of steel, aluminum, copper or titanium system.
Utilize the method for above-mentioned fuel cell membranes reactor made hydrogen peroxide, comprise the following steps: the cathode compartment and the anolyte compartment that make oxygen and hydrogen enter the fuel cell membrane reactor respectively, closed circuit also slowly flows electrolyte solution from top to bottom, hydrogen and oxygen generation electrochemical reaction, generate hydrogen peroxide, and dissolve in electrolyte solution.The pressure of oxygen and hydrogen can be by the valve regulated that is arranged on the pipeline of turnover cathode and anode chamber; The flow of oxygen and hydrogen can be regulated by the under meter that is provided with.Electric current that reaction produces and two interelectrode voltages are shown by rheometer in the circuit and voltmeter.
Described electrolyte solution is selected from dilute sulphuric acid, hydrochloric acid or phosphoric acid.
With graphite is cathod catalyst, catalyst loadings 28mg/cm
2Pt/ graphite is anode catalyst, Pt/ mineral carbon load amount 28mg/cm
2, catalyst Pt accounts for 10% (wt); 60 order stainless (steel) wires are current collector; Advancing anolyte compartment's hydrogen pressure is 102kpa, flow 20ml/min; Advancing the cathode compartment oxygen pressure is 102kpa, flow 20ml/min; 20 ℃ of service temperatures, ionogen are the aqueous sulfuric acid of concentration 0.5mol/L, electrolyte solution cycle rate 4ml/min.When closing of circuit, react and begin.Hydrogen peroxide generating rate: 0.1mmol/hcm under this condition
2Current density 20mA/cm
2
With graphite is cathod catalyst, catalyst loadings 28mg/cm2; Pt/ graphite is anode catalyst, Pt/ mineral carbon load amount 28mg/cm
2, catalyst Pt accounts for 10% (wt); 60 orders gold net is a current collector; Advancing anolyte compartment's hydrogen pressure is 102kpa, flow 20ml/min; Advancing the cathode compartment oxygen pressure is 102kpa, flow 20ml/min; 20 ℃ of service temperatures, ionogen are the aqueous sulfuric acid of concentration 0.5mol/L, electrolyte solution cycle rate 4ml/min.When closing of circuit, react and begin.Hydrogen peroxide generating rate: 0.16mmol/hcm under this condition
2Current density gold 18mA/cm
2
With graphite is cathod catalyst, catalyst loadings 28mg/cm2; Pt/ graphite is anode catalyst, Pt/ mineral carbon load amount 28mg/cm
2, catalyst Pt accounts for 10% (wt); 60 orders gold net is a current collector; Advancing anolyte compartment's hydrogen pressure is 102kpa, flow 20ml/min; Advancing the cathode compartment oxygen pressure is 120kpa, flow 20ml/min; 20 ℃ of service temperatures, ionogen are the aqueous sulfuric acid of concentration 0.5mol/L, electrolyte solution cycle rate 4ml/min.When closing of circuit, react and begin.Hydrogen peroxide generating rate: 0.48mmol/hcm under this condition
2Current density gold 38mA/cm
2
Above said content only is the basic explanation of the present invention under conceiving, and according to any equivalent transformation that technical scheme of the present invention is done, all should belong to protection scope of the present invention.
Claims (5)
1. fuel cell membrane reactor, by housing (10), cathode compartment (11), anolyte compartment (12) and negative electrode (7), anode (9) surrounds, cloudy, connect by external circuit between the positive electrode, oxygen inlet pipe (1) wherein, hydrogen inlet pipe (2) and acidic electrolyte solution inlet pipe (3) are respectively oxygen, the inlet pipe of hydrogen and acidic electrolyte solution, oxygen goes out pipe (4), hydrogen goes out pipe (5) and acidic electrolyte solution and goes out to manage (6) and be respectively oxygen, hydrogen and acidic electrolyte solution go out pipe, it is characterized in that: cathode compartment (11) is a narrow electrolyte channels, electrolyte solution can slowly flow through through this passage, anolyte compartment (12) is a narrow cavity, wherein hold electrolyte solution, between negative electrode (7) and anode (9), be equipped with a penetrating film of positively charged ion (8).
2. according to the described a kind of fuel cell membrane reactor of claim 1, it is characterized in that: described negative electrode, anode are prepared from by following method: get an amount of 20%～60% ptfe emulsion, deionized water dilution with 2～8 times of volumes, stir, take by weighing a certain amount of catalyzer, add the ptfe emulsion after diluting, make paste after fully stirring, then paste evenly is laid on and is surrounded by aluminium foil or scribbles in the mould of remover, catalyst loadings is 10g/cm
2～30g/cm
2The content of tetrafluoroethylene is 5%～40% (mass percent) of catalyzer, above-mentioned mashed prod is laid on the mould, then mould is placed 40 ℃～90 ℃ in baking oven, baking 15～60min, place 40～100 order mesh current collectors after the taking-up thereon, on the mesh current collector, place two-layer aluminium foil again, press cover plate at last, above-mentioned lamina is placed under 300 ℃～360 ℃ press hot pressing 5min～25min under 25～35MPa, taking-up is placed in the retort furnace, and greatly about 300 ℃～360 ℃ following sintering 20min～50min, cooling back mold removal is taken out in the back, at 70 ℃～90 ℃, soak about 20min～40min in 10%～40% aqueous sodium hydroxide solution to remove aluminium foil or remover, clean the thick about 0.1mm～0.3mm of prepared electrode at last with deionized water; When wherein making negative electrode (7) described catalyzer be selected from gold, platinum, palladium, platinum black, palladium black, carbon black, graphite, gac, carbon whisker, load on platinum or gold or palladium on the carbon black, load on platinum or gold or palladium on the graphite, load on platinum on the gac carbon or gold or palladium or platinum one of them, charge capacity is 0.5%～40% (weight percentage) of carrier, and the granularity of gold, platinum, palladium, platinum black, palladium black, carbon black, graphite or activated carbon is 10nm～200 μ m; When wherein making anode (9) described catalyzer be selected from platinum, platinum black, palladium, palladium black, load on the carbon black platinum or or platinum black or palladium or palladium black, load on platinum or platinum black or palladium or palladium black on the graphite, load on platinum on the gac carbon or platinum black or palladium or palladium black one of them, charge capacity is 0.5%～40% (weight percentage) of carrier, and the granularity of platinum, platinum black, palladium, palladium black is 10nm～200 μ m.
3. according to the described a kind of fuel cell membrane reactor of claim 2, it is characterized in that: described mould is the square or circular mould of steel, aluminum, copper or titanium system.
4. method of utilizing claim 1 or 2 described fuel cell membranes reactor made hydrogen peroxide, comprise the following steps: the cathode compartment and the anolyte compartment that make oxygen and hydrogen enter the fuel cell membrane reactor respectively, closed circuit also slowly flows electrolyte solution from top to bottom, hydrogen and oxygen generation electrochemical reaction, generate hydrogen peroxide, and dissolve in electrolyte solution.
5. the described method for preparing hydrogen peroxide of claim 4, it is characterized in that: described electrolyte solution is selected from dilute sulphuric acid, hydrochloric acid or phosphoric acid.
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|---|---|---|---|
| CNA2006101477371A CN101003905A (en) | 2006-12-22 | 2006-12-22 | Membrane reactor of fuel cell, and method for using the reactor to prepare hydrogen dioxide |
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| CNA2006101477371A CN101003905A (en) | 2006-12-22 | 2006-12-22 | Membrane reactor of fuel cell, and method for using the reactor to prepare hydrogen dioxide |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101748423B (en) * | 2008-12-19 | 2011-08-24 | 中国科学院大连化学物理研究所 | Efficient electrochemical reactor of electro-catalysis in-situ hydrogen peroxide |
| CN102224102A (en) * | 2008-10-15 | 2011-10-19 | 昆士兰大学 | Production of hydrogen peroxide |
| CN101748422B (en) * | 2008-12-19 | 2012-05-30 | 中国科学院大连化学物理研究所 | Method for preparing alkaline hydrogen peroxide in situ |
| CN105696018A (en) * | 2016-01-18 | 2016-06-22 | 天津大学 | Preparation and application of graphite-carbon black mixed air diffusion cathode |
| CN106630100A (en) * | 2016-12-30 | 2017-05-10 | 华中科技大学 | Landfill leachate treatment method, device and system |
| CN107313068A (en) * | 2016-04-26 | 2017-11-03 | 中国科学院大连化学物理研究所 | A kind of electrochemical method of synthetic acidic hydrogen peroxide |
| CN110565112A (en) * | 2019-08-19 | 2019-12-13 | 天津大学 | method for changing cathode oxygen reduction activity by regulating hydrophilicity and hydrophobicity |
| CN110835765A (en) * | 2018-08-17 | 2020-02-25 | 中国科学院大连化学物理研究所 | Catalyst and device for preparing high-purity hydrogen through electrocatalysis water-vapor shift reaction |
| CN111472018A (en) * | 2020-04-20 | 2020-07-31 | 浙江高成绿能科技有限公司 | Method for preparing hydrogen peroxide by SPE electrolysis |
| CN111554944A (en) * | 2020-05-21 | 2020-08-18 | 中国科学院福建物质结构研究所 | Application of hollow mesoporous carbon spheres |
| CN112522733A (en) * | 2020-12-04 | 2021-03-19 | 湖北华德莱节能减排科技有限公司 | Desulfurization fuel cell and method for producing acid and base through flue gas desulfurization |
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2006
- 2006-12-22 CN CNA2006101477371A patent/CN101003905A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102224102A (en) * | 2008-10-15 | 2011-10-19 | 昆士兰大学 | Production of hydrogen peroxide |
| CN101748423B (en) * | 2008-12-19 | 2011-08-24 | 中国科学院大连化学物理研究所 | Efficient electrochemical reactor of electro-catalysis in-situ hydrogen peroxide |
| CN101748422B (en) * | 2008-12-19 | 2012-05-30 | 中国科学院大连化学物理研究所 | Method for preparing alkaline hydrogen peroxide in situ |
| CN105696018A (en) * | 2016-01-18 | 2016-06-22 | 天津大学 | Preparation and application of graphite-carbon black mixed air diffusion cathode |
| CN105696018B (en) * | 2016-01-18 | 2018-09-04 | 天津大学 | A kind of preparation and application of graphite-carbon black mixing air dispenser cathode piece |
| CN107313068A (en) * | 2016-04-26 | 2017-11-03 | 中国科学院大连化学物理研究所 | A kind of electrochemical method of synthetic acidic hydrogen peroxide |
| CN106630100A (en) * | 2016-12-30 | 2017-05-10 | 华中科技大学 | Landfill leachate treatment method, device and system |
| CN106630100B (en) * | 2016-12-30 | 2019-11-19 | 华中科技大学 | A kind of garbage percolation liquid treatment method, device and system |
| CN110835765B (en) * | 2018-08-17 | 2021-01-22 | 中国科学院大连化学物理研究所 | Catalyst and device for preparing high-purity hydrogen through electrocatalysis water-vapor shift reaction |
| CN110835765A (en) * | 2018-08-17 | 2020-02-25 | 中国科学院大连化学物理研究所 | Catalyst and device for preparing high-purity hydrogen through electrocatalysis water-vapor shift reaction |
| CN110565112A (en) * | 2019-08-19 | 2019-12-13 | 天津大学 | method for changing cathode oxygen reduction activity by regulating hydrophilicity and hydrophobicity |
| CN110565112B (en) * | 2019-08-19 | 2021-10-26 | 天津大学 | Method for changing cathode oxygen reduction activity by regulating hydrophilicity and hydrophobicity |
| CN111472018A (en) * | 2020-04-20 | 2020-07-31 | 浙江高成绿能科技有限公司 | Method for preparing hydrogen peroxide by SPE electrolysis |
| CN111554944A (en) * | 2020-05-21 | 2020-08-18 | 中国科学院福建物质结构研究所 | Application of hollow mesoporous carbon spheres |
| CN111554944B (en) * | 2020-05-21 | 2022-02-18 | 中国科学院福建物质结构研究所 | Application of hollow mesoporous carbon spheres |
| CN112522733A (en) * | 2020-12-04 | 2021-03-19 | 湖北华德莱节能减排科技有限公司 | Desulfurization fuel cell and method for producing acid and base through flue gas desulfurization |
| CN112522733B (en) * | 2020-12-04 | 2024-03-08 | 湖北华德莱节能减排科技有限公司 | Desulfurization fuel cell and method for producing acid and alkali cooperatively by flue gas desulfurization |
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Open date: 20070725 |