CN114657577B - Preparation method of PEM electrolyzed water supported catalyst - Google Patents
Preparation method of PEM electrolyzed water supported catalyst Download PDFInfo
- Publication number
- CN114657577B CN114657577B CN202210371053.9A CN202210371053A CN114657577B CN 114657577 B CN114657577 B CN 114657577B CN 202210371053 A CN202210371053 A CN 202210371053A CN 114657577 B CN114657577 B CN 114657577B
- Authority
- CN
- China
- Prior art keywords
- conductive polymer
- nanofiber
- iridium
- pem
- supported catalyst
- 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.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 239000003054 catalyst Substances 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title abstract description 9
- 239000002121 nanofiber Substances 0.000 claims abstract description 42
- 229920001940 conductive polymer Polymers 0.000 claims abstract description 32
- 229910052741 iridium Inorganic materials 0.000 claims abstract description 19
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000002105 nanoparticle Substances 0.000 claims abstract description 14
- 239000000243 solution Substances 0.000 claims abstract description 13
- YNJJJJLQPVLIEW-UHFFFAOYSA-M [Ir]Cl Chemical compound [Ir]Cl YNJJJJLQPVLIEW-UHFFFAOYSA-M 0.000 claims abstract description 8
- 238000011068 loading method Methods 0.000 claims abstract description 8
- 238000010041 electrostatic spinning Methods 0.000 claims abstract description 6
- 238000009987 spinning Methods 0.000 claims abstract description 6
- 239000007864 aqueous solution Substances 0.000 claims abstract description 4
- 229910000033 sodium borohydride Inorganic materials 0.000 claims abstract description 4
- 239000012279 sodium borohydride Substances 0.000 claims abstract description 4
- 238000005868 electrolysis reaction Methods 0.000 claims description 13
- 229920000128 polypyrrole Polymers 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 229920000767 polyaniline Polymers 0.000 claims description 8
- 229920000123 polythiophene Polymers 0.000 claims description 2
- 229920002521 macromolecule Polymers 0.000 claims 1
- 239000012528 membrane Substances 0.000 abstract description 8
- 230000003197 catalytic effect Effects 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 229910044991 metal oxide Inorganic materials 0.000 abstract description 3
- 150000004706 metal oxides Chemical class 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 10
- 239000001257 hydrogen Substances 0.000 description 10
- 229910052739 hydrogen Inorganic materials 0.000 description 10
- 239000000843 powder Substances 0.000 description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 239000012876 carrier material Substances 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 239000010411 electrocatalyst Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- -1 platinum group metals Chemical class 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 229920000557 Nafion® Polymers 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000006256 anode slurry Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000001132 ultrasonic dispersion Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- DSVGQVZAZSZEEX-UHFFFAOYSA-N [C].[Pt] Chemical compound [C].[Pt] DSVGQVZAZSZEEX-UHFFFAOYSA-N 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- HTXDPTMKBJXEOW-UHFFFAOYSA-N iridium(IV) oxide Inorganic materials O=[Ir]=O HTXDPTMKBJXEOW-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000012798 spherical particle Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000013112 stability test Methods 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/02—Hydrogen or oxygen
- C25B1/04—Hydrogen or oxygen by electrolysis of water
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
- C25B11/04—Electrodes; Manufacture thereof not otherwise provided for characterised by the material
- C25B11/051—Electrodes formed of electrocatalysts on a substrate or carrier
- C25B11/055—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the substrate or carrier material
- C25B11/057—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the substrate or carrier material consisting of a single element or compound
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
- C25B11/04—Electrodes; Manufacture thereof not otherwise provided for characterised by the material
- C25B11/051—Electrodes formed of electrocatalysts on a substrate or carrier
- C25B11/073—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material
- C25B11/075—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material consisting of a single catalytic element or catalytic compound
- C25B11/081—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material consisting of a single catalytic element or catalytic compound the element being a noble metal
-
- 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
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Catalysts (AREA)
Abstract
The invention provides a preparation method of a PEM electrolyzed water supported catalyst, which comprises the following steps: 1) Preparing conductive polymer solution with viscosity, and spinning multi-size conductive polymer nanofibers by using an electrostatic spinning machine; 2) Immersing the conductive polymer nanofiber serving as a template into an aqueous solution of chloroiridium, and then adding excessive sodium borohydride to reduce the chloroiridium into iridium nanoparticles and loading the iridium nanoparticles on the surface of the nanofiber; 3) The iridium/conductive polymer nanofiber is placed in a tubular furnace, ar gas is introduced, and the temperature is kept for 2 hours at 200 ℃ to form a finished product, and compared with the prior art, the invention has the following beneficial effects: 1) The conductive polymer replaces the traditional metal oxide as a carrier, so that the conductivity of the membrane electrode catalytic layer is effectively improved; 2) The conductive polymer exists in the form of nano fiber, so that the catalytic layer forms a uniform conductive network, and the transmission efficiency of protons and electrons is accelerated.
Description
Technical Field
The invention relates to a proton exchange membrane water electrolysis anode catalyst and a preparation method thereof, in particular to a supported Ir/conductive polymer nanofiber oxygen evolution catalyst and a preparation method thereof.
Background
In the context of large scale development of hydrogen energy, proton exchange membrane water electrolysis (PEMWE, proton Exchange Membrane Water Electrolysis) is a very promising technology for sustainable water hydrogen production, which can be stored and transported to applications by converting intermittent electrical energy, such as wind, water and solar generated electrical energy, into hydrogen energy. On the one hand, the PEM water electrolysis technology greatly shortens the distance between the anode and the cathode because of using PEM as electrolyte, greatly improves the electrolysis efficiency, and can reach the hydrogen with the electricity/Nm 3 of less than or equal to 4-5 ℃. On the other hand, as the diaphragm, the mutual strings of cathode and anode gases can be reduced, so that the purity of generated hydrogen and oxygen is improved and can reach 99.5 percent, in addition, the pure water electrolysis is adopted, the electrolysis water system is easier to operate in maintenance and safer, in addition, the electrolysis tank can bear certain pressure, the hydrogen with pressure can be prepared, the hydrogen storage is facilitated, and the hydrogen production by PEM water electrolysis is extremely enthusiasm in various countries.
The choice of electrocatalyst is limited to platinum group metals (PGMs, platinum Group Metals) due to the harsh operating environment of PEMWE (low pH, potential >1.5V and high anodic oxygen concentration). Typically, platinum carbon catalysts (Pt/C) are used for hydrogen evolution reactions (HER, hydrogen Evolution Reaction) on the cathode, while iridium (Ir) based catalysts are used for oxygen evolution reactions (OER, oxygen Evolution Reaction) on the anode. The high dosage of the noble metal catalyst Ir or IrO2 severely restricts the large-scale commercial application of PEMWE technology, so that the reduction of the kinetic overpotential of the catalyst and the reduction of the dosage of the catalyst are important problems to be solved, and the Ir-based supported catalyst well solves the problems. However, most of the supports used in the mainstream supported catalysts on the market are inorganic metal oxides, such as TiO2, siO2, al2O3, ceO2, which have poor electrical conductivity and greatly reduce the performance of PEM electrolysis. Based on this, we have introduced a conductive polymer carrier material as a direct and efficient method to solve the conductivity problem. It also has the following advantages: 1. the conductive polymer nanofiber constructs a catalytic layer conductive network, so that the electrolytic water electrolysis performance of the PEM is effectively improved; 2. the polymer nano fiber can effectively improve the dispersion of Ir nano particles and inhibit the aggregation of the particles through anchoring effect; 3. the introduction of the carrier material is beneficial to improving the mass specific activity of the catalyst, and the carrier material has low price, so that the overall cost of the catalyst can be directly reduced. However, to date, anode oxygen evolution catalysts using conductive polymer nanofibers as carriers have been rarely reported.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a preparation method of a PEM electrolyzed water supported catalyst, which solves the problems in the prior art.
The invention is realized by the following technical scheme: a method for preparing a PEM electrolyzed water supported catalyst comprising the steps of:
1) Preparing conductive polymer solution with viscosity, and spinning multi-size conductive polymer nanofibers by using an electrostatic spinning machine;
2) Immersing the conductive polymer nanofiber serving as a template into an aqueous solution of chloroiridium, and then adding excessive sodium borohydride to reduce the chloroiridium into iridium nanoparticles and loading the iridium nanoparticles on the surface of the nanofiber;
3) And (3) putting the iridium/conductive polymer nanofiber into a tubular furnace, introducing Ar gas, and preserving heat for 2 hours at 200 ℃ to form a finished product.
In a preferred embodiment, in step (1), the conductive polymer is selected from polyaniline, polythiophene, polypyrrole, and combinations thereof.
In a preferred embodiment, in the step (1), the viscosity of the conductive polymer solution is 2-300cp.
In a preferred embodiment, in the step (2), the conductive polymer nanofiber has a diameter of 20 to 50nm and a length of 0.5 to 20um.
In a preferred embodiment, in the step (2), the iridium nanoparticle size supported on the polymer conductive nanofiber is 2 to 4nm.
As a preferred embodiment, in the step (2), the iridium loading of the conductive polymer nanofiber is 60-90wt%.
After the technical scheme is adopted, the invention has the beneficial effects that: 1) The conductive polymer replaces the traditional metal oxide as a carrier, so that the conductivity of the membrane electrode catalytic layer is effectively improved; 2) The conductive polymer exists in the form of nano fiber, so that a uniform conductive network is formed on the catalytic layer, and the transmission efficiency of protons and electrons is accelerated; 3) The method is simple and controllable, can be used for mass production, can obtain the oxygen evolution catalyst with excellent catalytic reaction activity and stability, and has higher mass specific activity.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a technical scheme that: a method for preparing a PEM electrolyzed water supported catalyst comprising the steps of:
1) Preparing conductive polymer solution with viscosity, and spinning multi-size conductive polymer nanofibers by using an electrostatic spinning machine;
2) Immersing the conductive polymer nanofiber serving as a template into an aqueous solution of chloroiridium, and then adding excessive sodium borohydride to reduce the chloroiridium into iridium nanoparticles and loading the iridium nanoparticles on the surface of the nanofiber;
3) And (3) putting the iridium/conductive polymer nanofiber into a tubular furnace, introducing Ar gas, and preserving heat for 2 hours at 200 ℃ to form a finished product.
As an embodiment of the present invention: example 1
Ir/polyaniline nanofiber catalyst for synthesis
Polyaniline solution with 150cp viscosity is prepared, and an electrostatic spinning machine is used for spinning polyaniline nanofiber.
Polyaniline nanofiber was used as a template, and 70wt% iridium nanoparticle was supported on the surface thereof.
Putting Ir/polyaniline nanofiber into a tube furnace, introducing Ar gas, and preserving heat for 2h at 200 ℃.
Example 2
Ir/polypyrrole nanofiber catalyst for synthesis
Preparing polypyrrole solution with the viscosity of 150cp, and spinning polypyrrole nanofibers by using an electrostatic spinning machine.
Polypyrrole nanofiber is used as a template, and 70wt% of iridium nanoparticles are loaded on the surface of the polypyrrole nanofiber.
Putting Ir/polypyrrole nanofiber into a tube furnace, introducing Ar gas, and preserving heat for 2 hours at 200 ℃.
Comparative example 1
Adding 30mgTiO2 nanofiber powder and 20ml of water into a flask, carrying out ultrasonic dispersion uniformly, then adding chloroiridic acid to ensure that the Ir loading amount reaches 70wt%, then stirring for 2 hours, then dropwise adding 4mol/LNaOH solution to adjust the pH value to 10, then placing the flask into a 70 ℃ water bath kettle, stirring for 4 hours, filtering, washing and drying after complete reaction, placing the obtained powder into a tubular furnace, and treating for 2 hours at 400 ℃, wherein the obtained powder is the Ir/TiO2NWs finally.
Comparative example 2
Adding 30mgSiO2 nanofiber powder and 20ml water into a flask, carrying out ultrasonic dispersion uniformly, then adding chloroiridic acid to ensure that the Ir loading amount reaches 70wt%, then stirring for 2 hours, then dropwise adding 4mol/LNaOH solution to adjust the pH value to 10, then placing the flask into a 70 ℃ water bath kettle, stirring for 4 hours, filtering, washing and drying after complete reaction, placing the obtained powder into a tubular furnace, and treating for 2 hours at 400 ℃, wherein the obtained powder is the Ir/SiO2NWs finally.
Comparative example 3
Adding 30mgTiO2 powder (P25) and 20ml of water into a flask, uniformly dispersing by ultrasonic, adding chloroiridic acid to ensure that the Ir loading amount reaches 70wt%, stirring for 2 hours, then dropwise adding 4mol/LNaOH solution to adjust the pH value to 10, then placing the flask into a 70 ℃ water bath kettle, stirring for 4 hours, filtering, washing and drying after complete reaction, placing the obtained powder into a tubular furnace, and treating for 2 hours at 400 ℃, wherein the obtained powder is the Ir/TiO2NPs.
Membrane Electrode (MEA) preparation
Anode slurry (ink) configuration: 100mg of the catalyst synthesized in the examples and comparative examples was added to a beaker, and mixed well with 5g of deionized water (Milli-Q), 7.5mg of isopropyl alcohol (IPA), 1.5ml of 5wt% Nafion solution (D520), to obtain an anode slurry.
Cathode ink preparation: a catalyst of the HiSPEC4000 type, produced by Johnson matthey, was formulated as a uniform suspension using a similar procedure as described above.
MEA preparation (CCM mode): and respectively coating the cathode ink and the anode ink on two sides of a proton exchange membrane (Nafion 115) by adopting ultrasonic spraying equipment, wherein the area of a catalyst layer is 25cm < 2 >, and the Pt carrying capacity is respectively controlled to be 0.3mg/cm < 2 > for the cathode and 1mg/cm < 2 > for the anode.
The test procedure was as follows:
a single proton exchange membrane cell (PEM-single cell) was assembled, the cathode porous diffusion layer using dori carbon paper, and the anode using platinum coated porous titanium. The flow rate of pure water is 300ml/min, the water temperature is controlled at 60 ℃, and a constant current test method is adopted for stability test.
The MEA test results are shown in table 1:
table 1 shows the performance exhibited by the example and comparative PEMWE anode electrocatalysts in PEM cells, with the Ir/polypyrrole nanofiber electrocatalyst of example 2 exhibiting the highest performance due to its higher conductivity than polyaniline, and higher proton and electron transport efficiency. However, comparative examples 1 and 2 exhibited poor electrolytic water properties, which means that poor conductivity TiO2 and SiO2 nanofibers as carriers greatly reduced the electrolytic water properties. Comparative example 3 illustrates that the nano-spherical particles have poorer activity and stability than the nano-fibers as the carrier, and mainly the spherical nano-particles are easy to agglomerate when water is electrolyzed, so that the utilization rate of active substances is reduced.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (3)
1. A method for preparing a PEM electrolyzed water supported catalyst comprising the steps of:
1) Preparing conductive polymer solution with viscosity, and spinning multi-size conductive polymer nanofibers by using an electrostatic spinning machine;
2) Immersing the conductive polymer nanofiber serving as a template into an aqueous solution of chloroiridium, and then adding excessive sodium borohydride to reduce the chloroiridium into iridium nanoparticles and loading the iridium nanoparticles on the surface of the nanofiber;
the diameter of the conductive polymer nanofiber is 20-50 nm, and the length is 0.5-20 um;
the iridium nanoparticle size loaded on the macromolecule conductive nanofiber is 2-4 nm;
the iridium load of the conductive polymer nanofiber is 60-90wt%;
3) And (3) putting the iridium/conductive polymer nanofiber into a tubular furnace, introducing Ar gas, and preserving heat for 2 hours at 200 ℃ to form a finished product.
2. A method of preparing a water-supported catalyst for PEM electrolysis according to claim 1 wherein: in step (1), the conductive polymer is selected from polyaniline, polythiophene, polypyrrole, and combinations thereof.
3. A method of preparing a water-supported catalyst for PEM electrolysis according to claim 2 wherein: in the step (1), the viscosity of the conductive polymer solution is 2-300cp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210371053.9A CN114657577B (en) | 2022-04-11 | 2022-04-11 | Preparation method of PEM electrolyzed water supported catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210371053.9A CN114657577B (en) | 2022-04-11 | 2022-04-11 | Preparation method of PEM electrolyzed water supported catalyst |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114657577A CN114657577A (en) | 2022-06-24 |
| CN114657577B true CN114657577B (en) | 2023-10-31 |
Family
ID=82034382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210371053.9A Active CN114657577B (en) | 2022-04-11 | 2022-04-11 | Preparation method of PEM electrolyzed water supported catalyst |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114657577B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5411641A (en) * | 1993-11-22 | 1995-05-02 | E. I. Du Pont De Nemours And Company | Electrochemical conversion of anhydrous hydrogen halide to halogen gas using a cation-transporting membrane |
| JP2007250210A (en) * | 2006-03-13 | 2007-09-27 | Nissan Motor Co Ltd | Electrode catalyst layer for fuel cell and its manufacturing method |
| CN101787544A (en) * | 2010-01-18 | 2010-07-28 | 中南大学 | Composite electrode material for electrochemically synthesizing methyl carbonate from carbon dioxide/methanol, preparation method and applications thereof |
| CN104797742A (en) * | 2012-09-21 | 2015-07-22 | Ucl商业有限公司 | Electrolysis electrocatalyst |
| WO2018195045A1 (en) * | 2017-04-17 | 2018-10-25 | President And Fellows Of Harvard College | Metal-doped catalyst, methods for its production and uses thereof |
| CN112993349A (en) * | 2019-12-14 | 2021-06-18 | 中国科学院大连化学物理研究所 | Preparation method and application of hollow nanometer groove type membrane electrode |
-
2022
- 2022-04-11 CN CN202210371053.9A patent/CN114657577B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5411641A (en) * | 1993-11-22 | 1995-05-02 | E. I. Du Pont De Nemours And Company | Electrochemical conversion of anhydrous hydrogen halide to halogen gas using a cation-transporting membrane |
| JP2007250210A (en) * | 2006-03-13 | 2007-09-27 | Nissan Motor Co Ltd | Electrode catalyst layer for fuel cell and its manufacturing method |
| CN101787544A (en) * | 2010-01-18 | 2010-07-28 | 中南大学 | Composite electrode material for electrochemically synthesizing methyl carbonate from carbon dioxide/methanol, preparation method and applications thereof |
| CN104797742A (en) * | 2012-09-21 | 2015-07-22 | Ucl商业有限公司 | Electrolysis electrocatalyst |
| WO2018195045A1 (en) * | 2017-04-17 | 2018-10-25 | President And Fellows Of Harvard College | Metal-doped catalyst, methods for its production and uses thereof |
| CN112993349A (en) * | 2019-12-14 | 2021-06-18 | 中国科学院大连化学物理研究所 | Preparation method and application of hollow nanometer groove type membrane electrode |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114657577A (en) | 2022-06-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112952118A (en) | high-Pt-content high-performance catalyst with high stability and reverse polarity resistance and preparation method thereof | |
| CN102088091A (en) | Carbon-carrying shell type copper-platinum catalyst for fuel cell and preparation method thereof | |
| CN108075144B (en) | Core-shell structure catalyst for fuel cell and preparation and application thereof | |
| CN106111130B (en) | A kind of porous superhigh specific surface area IrO2Oxygen-separating catalyst and preparation method thereof | |
| CN114293200B (en) | Porous carbon supported amorphous/crystalline ruthenium-based high-efficiency hydrogen evolution catalyst and preparation and application thereof | |
| CN106571474A (en) | Preparation method for platinum-nickel alloy nanoclusters and fuel cell using the same | |
| CN115896841B (en) | Iridium-supported metal oxide core-shell catalyst, preparation method and application thereof | |
| CN111013615A (en) | Preparation method of CoP catalyst with hydrogen precipitation and oxygen precipitation high-efficiency dual functions | |
| CN115369422A (en) | Low-iridium electrolyzed water catalyst, and preparation method and application thereof | |
| CN114300693A (en) | Method for improving stability of fuel cell carbon-supported platinum-based catalyst through activation of carbon carrier | |
| CN118547328A (en) | Catalyst for PEM water electrolysis, preparation method and application thereof | |
| CN113667995B (en) | Two-dimensional flaky dopamine pyrolytic carbon-coated ruthenium nanocluster catalyst and preparation and use method thereof | |
| CN107293759A (en) | A kind of preparation method of fuel cell oxygen reduction electrocatalyst | |
| CN114657577B (en) | Preparation method of PEM electrolyzed water supported catalyst | |
| CN116329561A (en) | Transition metal doped iridium-based nanomaterial and preparation method and application thereof | |
| CN107565139A (en) | A kind of fuel cell oxygen reduction electrocatalyst phosphorus, nitrogen, the preparation method of nickel co-doped carbon material | |
| CN108963283B (en) | High-dispersion load type core-shell structure Pd @ Ni/WC direct alcohol fuel cell catalyst and preparation method thereof | |
| CN113265682B (en) | Load-type RuO x /F-TiO 2 Oxygen evolution catalyst and preparation method and application thereof | |
| CN114388819B (en) | Preparation method of sub-nano-scale platinum catalyst with high CO tolerance and application of sub-nano-scale platinum catalyst in fuel cell | |
| CN112725830B (en) | Preparation method of multistage pore cobalt phosphide/nitrogen-doped carbon network electrocatalyst | |
| CN104707598A (en) | Proton exchange membrane fuel cell electrocatalyst and preparation method thereof | |
| CN115491699A (en) | Nano copper-based catalyst, preparation method thereof and application of nano copper-based catalyst in electrocatalytic reduction of carbon dioxide and carbon monoxide | |
| CN110571443A (en) | Porous alloy nanotube catalyst with adjustable structure and preparation method thereof | |
| CN220393933U (en) | Anode catalyst structure for producing hydrogen by water electrolysis, catalytic layer and membrane electrode | |
| CN117568848B (en) | Device and method for producing hydrogen by electrolyzing hydroiodic acid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |