CN104122304A - Preparation method of sensor based on stannic oxide functionalized graphene - Google Patents
Preparation method of sensor based on stannic oxide functionalized graphene Download PDFInfo
- Publication number
- CN104122304A CN104122304A CN201410351198.8A CN201410351198A CN104122304A CN 104122304 A CN104122304 A CN 104122304A CN 201410351198 A CN201410351198 A CN 201410351198A CN 104122304 A CN104122304 A CN 104122304A
- Authority
- CN
- China
- Prior art keywords
- preparation
- sensor based
- alundum
- al2o3
- described step
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention provides a preparation method of a sensor based on stannic oxide functionalized graphene. The preparation method comprises the steps of putting a graphene-deposited aluminum trioxide chip into basic stannous chloride turbid liquid, carrying out water bath, taking the basic aluminum trioxide chip out and washing, and carrying out annealing treatment on the cleaned aluminum trioxide chip in an oxygen atmosphere, so as to finally obtain the sensor based on nano-stannic oxide functionalized graphene. The preparation method is simple, is easy to operate, is low in cost and is applicable to large-scale production; the nano-stannic oxide in the sensor prepared by virtue of the method is uniform in size and is controllable in shape; the sensor can be used for carrying out real-time, rapid and accurate detection on benzene series gases of different concentrations and is low in detection limit and high in sensitivity.
Description
Technical field
The present invention relates to a kind of preparation method of sensor, be specifically related to a kind of preparation method of the sensor based on tin ash functionalization graphene.
Background technology
In recent years, China's " room air pollution " has become the third-largest class air pollution after " coal-smoke pollution " and " photochemical pollution ".Due to being widely used of some building and ornament materials containing harmful chemical, cause benzene homologues room air pollution phenomenon excessive and that cause more and more general.Long Term Contact medium/low concentration benzene series matter can cause slow poisoning, there is the nervous breakdowns such as dizziness, insomnia, One's spirits are drooping, failure of memory, also can show as skin, eyes and upper respiratory tract spread effect, occur that blood platelet, leucocyte reduce, severe patient can make hemopoietic function of bone marrow generation obstacle, reproductive function is also had to certain influence, even have carcinogenic danger.According to pointing out in national environmental protection portion and " performance evaluation of the OECD Chinese environmental " report of announcing in OECD (OECD) on July 17th, 2007: it is to spend in indoor environment that people has time of 80% to 90% in life at least, therefore effectively detect and pulpit in benzene homologues content and China people's healthy relation closer.There is important realistic meaning so develop the sensor that can detect room air Benzene series Concentrations.Benzene in air is that the detection method of thing is mainly vapor-phase chromatography at present, is also to use spectroscopic methodology on a small quantity, and vapor-phase chromatography is wherein state specified standards detection method, and the instrument that the method needs is huger and expensive.
Summary of the invention
The preparation method who the object of the invention is to overcome the weak point of prior art existence and provide a kind of sensor based on tin ash functionalization graphene for detection of benzene homologues, the present invention also provides the sensor that adopts described method to prepare, and this sensor is in the application detecting in benzene homologues.
For achieving the above object, the technical scheme of taking: a kind of preparation method of the sensor based on tin ash functionalization graphene, said method comprising the steps of:
(1) stannous chloride is joined to the reaction that is hydrolyzed in deionized water, obtain alkali formula stannous chloride suspension;
(2) between the gold electrode of alundum (Al2O3) ceramic chip, add graphene solution, then the dry solvent of removing in graphene solution deposits a layer graphene between described electrode;
(3) the alundum (Al2O3) ceramic chip obtaining in step (2) is put into the alkali formula stannous chloride suspension that step (1) obtains and carried out water-bath;
(4) after processing, step (3) takes out alundum (Al2O3) ceramic chip from alkali formula stannous chloride suspension, in oxygen-containing atmosphere, alundum (Al2O3) ceramic chip is carried out to annealing in process, obtain the described sensor based on tin ash functionalization graphene.
The present invention proposes a kind of method with in-situ chemical deposition and prepare nano-stannic oxide sensor.Principle is SnO
2belong to N-type semiconductor, be exposed to airborne SnO
2oxygen in nanostructured absorbed air, the oxygen of surface physics absorption can be from SnO
2material surface is taken electronics away and is changed into negative oxygen ion, thereby forms space charge depletion layer at semiconductor surface, makes SnO
2electron amount in conduction band reduces, and surface barrier raises, and material electric conductivity reduces.Graphene (Graphene) is a kind of two dimensional crystal of single carbon atom layer thickness sp2 bonding, is the desirable matrix material of growth and loading functional nano material.Graphene-supported nano material has high electron mobility, high-specific surface area and high stability structure, has application prospect extremely widely in galvanochemistry and catalytic field.Benzene homologues easily and Graphene with the form bonding of π-π covalent bond, work as SnO
2while running into benzene homologues gas molecule, benzene homologues molecule and SnO
2the negative oxygen ion on surface reacts, taking benzene as example, and benzene molecular and SnO
2the negative oxygen ion reaction on surface is as follows:
C
6H
6(gas)+15O-→3H
2O(gas)+6CO
2(gas)+15e-
C
6H
6(gas)+15O2-→3H
2O(gas)+6CO
2(gas)+306e-，
The electronics discharging makes SnO
2electron amount in conduction band increases, thereby resistance is reduced, and conductivity increases.
As preparation method's of the present invention preferred implementation, in described step (1), the mass ratio of stannous chloride and deionized water is 1:200～5:200.
As preparation method's of the present invention preferred implementation, in described step (1), hydrolysising reacting temperature is 40-80 DEG C, and hydrolysis time is 30～90min.
As preparation method's of the present invention preferred implementation, described in described step (1), hydrolysis reaction under agitation carries out, in described step (2), graphene solution adopts injector to join between the gold electrode of alundum (Al2O3) ceramic chip, in described step (3), alundum (Al2O3) ceramic chip adopted microslide to fix before putting into alkali formula stannous chloride suspension, adopted deionized water to clean alundum (Al2O3) ceramic chip in described step (4).
As preparation method's of the present invention preferred implementation, described in described step (1), stirring rate is 40～100r/min.
As preparation method's of the present invention preferred implementation, in described step (2), the solvent of graphene solution is selected from least one in water, dimethyl formamide and 1-METHYLPYRROLIDONE.Described Graphene comprises Graphene prepared by Physical and chemical method.
As preparation method's of the present invention preferred implementation, in described step (2), the concentration of graphene solution is 0.01～0.05mg/mL.
As preparation method's of the present invention preferred implementation, in described step (3), bath temperature is 40-80 DEG C, and the water-bath time is 30～90min; In described step (4), oxygen-containing atmosphere is air, and annealing in process condition for to be incubated 1.5-2.5h at 250-350 DEG C.
As preparation method's of the present invention preferred implementation, in described step (3), bath temperature is 55 DEG C, and the water-bath time is 1h; In described step (4), annealing in process condition for to be incubated 2h at 300 DEG C.
The present invention also provides a kind of sensor for detection of benzene homologues, and described sensor adopts method described above to be prepared from.
The present invention also provides sensor described above in the application detecting in benzene homologues.This sensor can carry out in real time the benzene homologues gas of variable concentrations, detect fast and accurately.
Beneficial effect of the present invention is: the preparation method who the invention provides a kind of sensor based on tin ash functionalization graphene; this preparation method is simple, easy to operate, with low cost; can carry out large-scale production; and nano-stannic oxide size homogeneous in the sensor of preparing by the method; pattern is controlled; this sensor can be realized the benzene homologues gas of variable concentrations is carried out in real time, detected fast and accurately, and its detectability is low, highly sensitive.
Brief description of the drawings
Fig. 1 is the process schematic diagram of a kind of embodiment of the preparation method of the sensor based on tin ash functionalization graphene of the present invention, wherein 1 is alundum (Al2O3) pottery, and 2 is gold electrode, and 3 is Graphene, 4 is alkali formula stannous chloride suspension, and 5 is stannic oxide particle;
Fig. 2 is the transmission electron microscope figure that adopts a kind of embodiment of the sensor prepared of the method for the invention;
Fig. 3 is the response-recovery curve that the sensor by adopting the method for the invention to prepare is measured different benzene concentrations at 240 DEG C;
Fig. 4 is another response-recovery curve that the sensor by adopting the method for the invention to prepare is measured different benzene concentrations at 240 DEG C;
Fig. 5 is the response-recovery curve that the sensor by adopting the method for the invention to prepare is measured different toluene concentration at 240 DEG C.
Embodiment
For the object, technical solutions and advantages of the present invention are better described, below in conjunction with specific embodiment, the invention will be further described.
Embodiment 1
A kind of embodiment of the preparation method of the sensor based on tin ash functionalization graphene of the present invention, its process as shown in Figure 1, said method comprising the steps of:
(1) stannous chloride is joined to the reaction that is hydrolyzed in deionized water, the mass ratio of described stannous chloride and described deionized water is 1:200, at 40 DEG C, react 90min, during reaction it is stirred, stirring rate is 100r/min, obtains uniform alkali formula stannous chloride suspension;
(2) between gold (Au) electrode of alundum (Al2O3) ceramic chip, adding concentration by injector is the graphene aqueous solution of 0.05mg/mL, then place it in vacuum drying chamber, dry 1h at 170 DEG C, remove the solvent in graphene solution, between described electrode, deposit a layer graphene, between described electrode, form conductive layer, the resistance that probe station is measured between metal electrode is 10～200K Ω;
(3) the alundum (Al2O3) ceramic chip obtaining in step (2) is fixed on microslide, then puts it in the alkali formula stannous chloride suspension obtaining in step (1) and carry out water-bath, water-bath 30min at 80 DEG C;
(4) after processing, step (3) takes out alundum (Al2O3) ceramic chip from alkali formula stannous chloride suspension, alundum (Al2O3) ceramic chip is cleaned with deionized water, then in air, alundum (Al2O3) ceramic chip is carried out to annealing in process, annealing in process condition, for to be incubated 2h at 300 DEG C, obtains the described sensor based on tin ash functionalization graphene.
Embodiment 2
A kind of embodiment of the preparation method of the sensor based on tin ash functionalization graphene of the present invention, its process as shown in Figure 1, said method comprising the steps of:
(1) stannous chloride is joined to the reaction that is hydrolyzed in deionized water, described stannous chloride is that 5:200 reacts 70min at 55 DEG C with the mass ratio of described deionized water, during reaction it is stirred, stirring rate is 40r/min, obtains uniform alkali formula stannous chloride suspension;
(2) between gold (Au) electrode of alundum (Al2O3) ceramic chip, adding concentration by injector is the graphene solution of 0.01mg/mL, solvent in described graphene solution is dimethyl formamide, then place it in vacuum drying chamber, dry 1h at 170 DEG C, remove the solvent in graphene solution, between described electrode, deposit a layer graphene, between described electrode, form conductive layer, the resistance that probe station is measured between metal electrode is 10～200K Ω;
(3) the alundum (Al2O3) ceramic chip obtaining in step (2) is fixed on microslide, then puts it in the alkali formula stannous chloride suspension obtaining in step (1) and carry out water-bath, water-bath 90min at 40 DEG C;
(4) after processing, step (3) takes out alundum (Al2O3) ceramic chip from alkali formula stannous chloride suspension, alundum (Al2O3) ceramic chip is cleaned with deionized water, then in air, alundum (Al2O3) ceramic chip is carried out to annealing in process, annealing in process condition, for to be incubated 2.5h at 250 DEG C, obtains the described sensor based on tin ash functionalization graphene.
Embodiment 3
A kind of embodiment of the preparation method of the sensor based on tin ash functionalization graphene of the present invention, its process as shown in Figure 1, said method comprising the steps of:
(1) stannous chloride is joined to the reaction that is hydrolyzed in deionized water, the mass ratio of described stannous chloride and described deionized water is 1:100, at 65 DEG C, reacts 50min, during reaction it is stirred, stirring rate is 70r/min, obtains uniform alkali formula stannous chloride suspension;
(2) between gold (Au) electrode of alundum (Al2O3) ceramic chip, adding concentration by injector is the graphene solution of 0.03mg/mL, solvent in described graphene solution is 1-METHYLPYRROLIDONE, then place it in vacuum drying chamber, dry 1h at 170 DEG C, remove the solvent in graphene solution, between described electrode, deposit a layer graphene, between described electrode, form conductive layer, the resistance that probe station is measured between metal electrode is 10～200K Ω;
(3) the alundum (Al2O3) ceramic chip obtaining in step (2) is fixed on microslide, then puts it in the alkali formula stannous chloride suspension obtaining in step (1) and carry out water-bath, water-bath 50min at 60 DEG C;
(4) after processing, step (3) takes out alundum (Al2O3) ceramic chip from alkali formula stannous chloride suspension, alundum (Al2O3) ceramic chip is cleaned with deionized water, then in air, alundum (Al2O3) ceramic chip is carried out to annealing in process, annealing in process condition, for to be incubated 1.5h at 350 DEG C, obtains the described sensor based on tin ash functionalization graphene.
Embodiment 4
A kind of embodiment of the preparation method of the sensor based on tin ash functionalization graphene of the present invention, its process as shown in Figure 1, said method comprising the steps of:
(1) stannous chloride is joined to the reaction that is hydrolyzed in deionized water, the mass ratio of described stannous chloride and described deionized water is 3:200, at 80 DEG C, react 30min, during reaction it is stirred, stirring rate is 100r/min, obtains uniform alkali formula stannous chloride suspension;
(2) between gold (Au) electrode of alundum (Al2O3) ceramic chip, adding concentration by injector is the graphene aqueous solution of 0.01mg/mL, then place it in vacuum drying chamber, dry 1h at 170 DEG C, remove the solvent in graphene solution, between described electrode, deposit a layer graphene, between described electrode, form conductive layer, the resistance that probe station is measured between metal electrode is 10～200K Ω;
(3) the alundum (Al2O3) ceramic chip obtaining in step (2) is fixed on microslide, then puts it in the alkali formula stannous chloride suspension obtaining in step (1) and carry out water-bath, water-bath 60min at 55 DEG C;
(4) after processing, step (3) takes out alundum (Al2O3) ceramic chip from alkali formula stannous chloride suspension, alundum (Al2O3) ceramic chip is cleaned with deionized water, then in air, alundum (Al2O3) ceramic chip is carried out to annealing in process, annealing in process condition, for to be incubated 2h at 300 DEG C, obtains the described sensor based on tin ash functionalization graphene.
Embodiment 5
As shown in Figure 2, the transmission electron microscope model using is Tecnai G2F20S-Twin to the transmission electron microscope photo of sensor prepared by employing embodiment of the present invention 1-4 method, photographical condition: voltage 200KV, light field.As can be seen from Figure 2, nano-stannic oxide size uniform in this sensor, size is 2nm left and right.
Embodiment 6
The response-recovery curve of measuring different benzene concentrations by air-sensitive test macro by the sensor that adopts the method for the invention to prepare at 240 DEG C is as Fig. 3 and Fig. 4, can find out from Fig. 3 and Fig. 4, the detection that this sensor is measured benzene is limited to 6ppb, and in the time measuring 300ppb benzene concentration, sensitivity can reach 60%.
The response-recovery curve of measuring different toluene concentration by air-sensitive test macro by the sensor that adopts the method for the invention to prepare at 240 DEG C is as Fig. 5, as can be seen from Figure 5, the detection that this sensor is measured benzene is limited to 25ppb, and in the time measuring 250ppb toluene concentration, sensitivity can reach 9%.
From above data, this sensor is in the time detecting benzene and toluene, and its detectability is all lower, and in the time detecting benzene, its sensitivity is relatively higher.
Last institute should be noted that; above embodiment is only in order to illustrate technical scheme of the present invention but not limiting the scope of the invention; although the present invention is explained in detail with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify or be equal to replacement technical scheme of the present invention, and not depart from essence and the scope of technical solution of the present invention.
Claims (10)
1. a preparation method for the sensor based on tin ash functionalization graphene, is characterized in that, said method comprising the steps of:
(1) stannous chloride is joined to the reaction that is hydrolyzed in deionized water, obtain alkali formula stannous chloride suspension;
(2) between the gold electrode of alundum (Al2O3) ceramic chip, add graphene solution, then the dry solvent of removing in graphene solution deposits a layer graphene between described electrode;
(3) the alundum (Al2O3) ceramic chip obtaining in step (2) is put into the alkali formula stannous chloride suspension that step (1) obtains and carried out water-bath;
(4) after processing, step (3) takes out alundum (Al2O3) ceramic chip from alkali formula stannous chloride suspension, alundum (Al2O3) ceramic chip is cleaned, then in oxygen-containing atmosphere, alundum (Al2O3) ceramic chip is carried out to annealing in process, obtain the described sensor based on tin ash functionalization graphene.
2. the preparation method of the sensor based on tin ash functionalization graphene according to claim 1, is characterized in that, in described step (1), the mass ratio of stannous chloride and deionized water is 1:200～5:200.
3. the preparation method of the sensor based on tin ash functionalization graphene according to claim 1, is characterized in that, described in described step (1), hydrolysis reaction under agitation carries out; In described step (2), graphene solution adopts injector to join between the electrode of alundum (Al2O3) ceramic chip; In described step (3), alundum (Al2O3) ceramic chip adopted microslide to fix before putting into alkali formula stannous chloride suspension; In described step (4), adopt deionized water to clean alundum (Al2O3) ceramic chip.
4. the preparation method of the sensor based on tin ash functionalization graphene according to claim 3, is characterized in that, described in described step (1), stirring rate is 40～100r/min.
5. the preparation method of the sensor based on tin ash functionalization graphene according to claim 1, it is characterized in that, in described step (2), the solvent of graphene solution is selected from least one in water, dimethyl formamide and 1-METHYLPYRROLIDONE.
6. the preparation method of the sensor based on tin ash functionalization graphene according to claim 1, is characterized in that, in described step (2), the concentration of graphene solution is 0.01～0.05mg/mL.
7. the preparation method of the sensor based on tin ash functionalization graphene according to claim 1, is characterized in that, in described step (3), bath temperature is 40-80 DEG C, and the water-bath time is 30～90min; In described step (4), oxygen-containing atmosphere is air, and annealing in process condition for to be incubated 1.5-2.5h at 250-350 DEG C.
8. the preparation method of the sensor based on tin ash functionalization graphene according to claim 7, is characterized in that, in described step (3), bath temperature is 55 DEG C, and the water-bath time is 1h; In described step (4), annealing in process condition for to be incubated 2h at 300 DEG C.
An employing as arbitrary in claim 1-8 as described in the sensor based on tin ash functionalization graphene prepared of method.
10. a sensor as claimed in claim 9 is in the application detecting in benzene homologues.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410351198.8A CN104122304B (en) | 2014-07-22 | A kind of sensor based on tin ash functionalization graphene and its preparation method and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410351198.8A CN104122304B (en) | 2014-07-22 | A kind of sensor based on tin ash functionalization graphene and its preparation method and application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104122304A true CN104122304A (en) | 2014-10-29 |
| CN104122304B CN104122304B (en) | 2017-01-04 |
Family
ID=
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106990142A (en) * | 2017-05-09 | 2017-07-28 | 大连理工大学 | A kind of NO based on graphene/tin dioxide quantal-point composite2Sensor and preparation method thereof |
| CN108339556A (en) * | 2018-02-01 | 2018-07-31 | 河南师范大学 | A kind of preparation method of alkali formula stannous chloride amorphous catalysis material |
| CN108855153A (en) * | 2018-05-28 | 2018-11-23 | 河南师范大学 | A kind of preparation method of faint yellow alkali formula stannous chloride visible light responsible photocatalytic material |
| CN111116232A (en) * | 2019-12-13 | 2020-05-08 | 苏州麦茂思传感技术有限公司 | Synthesis method of formaldehyde gas sensor sensitive material |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879431A (en) * | 2012-10-15 | 2013-01-16 | 苏州大学 | Gas sensor based on reduced graphene oxide and preparation method thereof |
| CN103058173A (en) * | 2013-02-04 | 2013-04-24 | 苏州纳格光电科技有限公司 | Preparation method of nano metal oxide functionalized carbon nanotubes and gas sensor |
| WO2014071566A1 (en) * | 2012-11-07 | 2014-05-15 | Empire Technology Development Llc | Analyte detectors and methods for their preparation and use |
| US20140158551A1 (en) * | 2012-12-06 | 2014-06-12 | International Business Machines Corporation | Carbon based biosensors and processes of manufacturing the same |
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879431A (en) * | 2012-10-15 | 2013-01-16 | 苏州大学 | Gas sensor based on reduced graphene oxide and preparation method thereof |
| WO2014071566A1 (en) * | 2012-11-07 | 2014-05-15 | Empire Technology Development Llc | Analyte detectors and methods for their preparation and use |
| US20140158551A1 (en) * | 2012-12-06 | 2014-06-12 | International Business Machines Corporation | Carbon based biosensors and processes of manufacturing the same |
| CN103058173A (en) * | 2013-02-04 | 2013-04-24 | 苏州纳格光电科技有限公司 | Preparation method of nano metal oxide functionalized carbon nanotubes and gas sensor |
Non-Patent Citations (3)
| Title |
|---|
| QIANQIAN LIN ET AL.: "Tin oxide/graphene composite fabricated via a hydrothermal method for gas sensors working at room temperature", 《SENSORS AND ACTUATORS B:CHEMICAL》 * |
| SHUN MAO ET AL.: "A new reducing agent to prepare single-layer, high-quality reduced grapheme oxide for device applications", 《NANOSCALE》 * |
| SHUN MAO ET AL: "Tuning gas-sensing properties of reduced graphene oxide using tin oxide nanocrystals", 《JOURNAL OF MATERIALS CHEMISTRY》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106990142A (en) * | 2017-05-09 | 2017-07-28 | 大连理工大学 | A kind of NO based on graphene/tin dioxide quantal-point composite2Sensor and preparation method thereof |
| CN108339556A (en) * | 2018-02-01 | 2018-07-31 | 河南师范大学 | A kind of preparation method of alkali formula stannous chloride amorphous catalysis material |
| CN108855153A (en) * | 2018-05-28 | 2018-11-23 | 河南师范大学 | A kind of preparation method of faint yellow alkali formula stannous chloride visible light responsible photocatalytic material |
| CN108855153B (en) * | 2018-05-28 | 2021-03-16 | 河南师范大学 | Preparation method of faint yellow basic stannous chloride visible light response photocatalytic material |
| CN111116232A (en) * | 2019-12-13 | 2020-05-08 | 苏州麦茂思传感技术有限公司 | Synthesis method of formaldehyde gas sensor sensitive material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Mao et al. | Molecularly imprinted photoelectrochemical sensor for fumonisin B1 based on GO-CdS heterojunction | |
| CN108535339B (en) | Nanogold-biomass carbon composite material modified electrode and its application in luteolin detection | |
| CN107449816B (en) | All solid state ion selective electrode, preparation method and biosensor | |
| CN104181209A (en) | Nitrogen dioxide gas sensor and preparation method thereof | |
| CN104198321A (en) | QCM (quartz crystal microbalance) formaldehyde sensor with chemical and physical adsorption effects and preparation method thereof | |
| CN202794099U (en) | Electrochemical modified electrode for detecting nitrite and detector | |
| CN104359966A (en) | Method for preparing glucose sensor with precious metal doped zinc oxide nanorod | |
| Zeng et al. | Electrochemical behavior of luteolin and its detection based on macroporous carbon modified glassy carbon electrode | |
| CN103487492B (en) | A kind of electrochemical sensor detecting trace amount of bisphenol A and preparation method thereof and application | |
| CN105347403A (en) | High-selectivity formaldehyde gas-sensitive material and preparation method and application thereof | |
| CN102944598A (en) | Preparation method and application of cell based sensor based on electrochemical reduction graphite oxide/gold nanoparticle composite membrane | |
| CN110483798B (en) | Preparation method and application of graphene oxide @ chiral Ni-MOF hybrid material | |
| CN105699368A (en) | Preparation method and application of difunctional hydrogen peroxide non-enzymatic sensor built based on two-dimensional composite material | |
| CN103439390B (en) | Electrochemical method for detecting melamine in dairy products or food | |
| CN103058173B (en) | Preparation method of nano metal oxide functionalized carbon nanotubes and gas sensor | |
| CN106680336B (en) | The preparation of redox graphene/Phthalocyanine Zinc composite membrane and its be applied to NO2Gas-monitoring | |
| CN103940878A (en) | Non-reagent electrochemical luminescence sensor and preparation method thereof | |
| CN107991364A (en) | A kind of solid ionic electrodes selective and its preparation and application | |
| CN110441380A (en) | A kind of electrochemical sensor and its preparation method and application based on molecular engram electrode technology | |
| CN103760196B (en) | A kind of Birnessite type manganese dioxide nanosheet hydrogen sensor and preparation method thereof | |
| CN109738502B (en) | Fe2O3Preparation method of thin film electrode and application of thin film electrode in photoelectrochemical glucose sensor | |
| CN103926293A (en) | Zinc oxide/multi-wall carbon nanotube modified electrode and preparation method and application thereof | |
| CN105606655B (en) | A kind of preparation method and application of the acetone gas sensor based on two-dimentional porous nano composite material supported palladium | |
| CN103969307A (en) | Preparation method for titanium dioxide-graphene/screen-printed electrode for detecting parachlorophenol | |
| CN104122304A (en) | Preparation method of sensor based on stannic oxide functionalized graphene |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Ding Haiyan Inventor after: Li Guanghui Inventor after: Qi Mingfeng Inventor after: Liu Rui Inventor after: Shen Fangping Inventor after: Gu Wen Inventor before: Ding Haiyan Inventor before: Zhang Ting Inventor before: Li Guanghui Inventor before: Qi Mingfeng Inventor before: Liu Rui Inventor before: Shen Fangping Inventor before: Gu Wen |
|
| CB03 | Change of inventor or designer information |