CN106654302A - Proton exchange membrane non-platinum catalyst using peanut as raw material and preparation method thereof - Google Patents
Proton exchange membrane non-platinum catalyst using peanut as raw material and preparation method thereof Download PDFInfo
- Publication number
- CN106654302A CN106654302A CN201610890238.5A CN201610890238A CN106654302A CN 106654302 A CN106654302 A CN 106654302A CN 201610890238 A CN201610890238 A CN 201610890238A CN 106654302 A CN106654302 A CN 106654302A
- Authority
- CN
- China
- Prior art keywords
- peanut
- proton exchange
- iron
- raw material
- platinum 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/90—Selection of catalytic material
- H01M4/9016—Oxides, hydroxides or oxygenated metallic salts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/88—Processes of manufacture
- H01M4/8817—Treatment of supports before application of the catalytic active composition
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/96—Carbon-based electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1004—Fuel cells with solid electrolytes characterised by membrane-electrode assemblies [MEA]
-
- 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
The invention belongs to the preparation field of fuel cell catalysts, and specifically relates to a proton exchange membrane fuel cell anode non-platinum catalyst and a preparation method of the catalyst. The catalyst is prepared and formed by using peanut as a source of carbon and nitrogen elements and compounding a cerium oxide precursor and an iron precursor, wherein the mass ratio of the peanut, the cerium oxide precursor to the iron precursor is (1 to 100): (1 to 50): (1 to 35), and the mole ratio of carbon, nitrogen, iron to cerium oxide in the catalyst is (1 to 10): (0.3 to 3): (0.1 to 5): (0.1 to 5). The catalyst disclosed by the invention has the advantage of good oxygen reduction activity, does not contain precious metals, and has very important meaning.
Description
Technical field
The present invention relates to the preparation field of fuel-cell catalyst, and in particular to a kind of proton exchange with peanut as raw material
Membrane fuel battery cathod non-platinum catalyst and preparation method thereof.
Background technology
Proton Exchange Membrane Fuel Cells receives extensively pass with its high efficiency, high power density, advantages of environment protection
Note.At present Proton Exchange Membrane Fuel Cells is mainly using platinum and platinum-base material as catalyst, platinum fancy price and few storage
Amount hinders the application of Proton Exchange Membrane Fuel Cells.Thus, develop cheap and with excellent activity catalyst and seem
It is particularly urgent and important.
The content of the invention
Present invention aims to the deficiencies in the prior art, there is provided a kind of cheap and with good hydrogen reduction
The fuel battery cathode with proton exchange film non-platinum catalyst of activity.
For achieving the above object, the present invention is adopted the following technical scheme that:
A kind of fuel battery cathode with proton exchange film non-platinum catalyst with peanut as raw material, the catalyst is made using peanut
For carbon and the source of nitrogen, and it is prepared from cerium oxide precursor body and iron forerunner's bluk recombination, wherein peanut, cerium oxide precursor
The mass ratio of body and iron presoma is 1-100:1-50:1-35, carbon, nitrogen, iron, the molar ratio of cerium oxide are 1- in catalyst
10:0.3-3:0.1-5:0.1-5。
The cerium oxide precursor body is cerous nitrate or ammonium ceric nitrate.
The iron presoma is ferric nitrate, ferric sulfate, iron chloride, ferrocene, iron hydroxide, iron sulfide or ferric perchlorate.
Present invention also offers the preparation side of the fuel battery cathode with proton exchange film non-platinum catalyst with peanut as raw material
Method, comprises the following steps:
1)Peanut is mixed and is made peanut slurries with water;
2)Cerium oxide precursor body and iron presoma are added, is stirred;
3)Add sodium hydroxide solution and stir, obtain mixed liquor;
4)Above-mentioned mixed liquor is inserted in autoclave and is sealed, and the heating and thermal insulation 1-24 h at 80-180 DEG C, then cool down,
Liquid is abandoned, is dried;
5)By step 4)Products therefrom is placed in reducing atmosphere, and the heating and thermal insulation 1-6 h at 300-500 DEG C, is had
The fuel battery cathode with proton exchange film non-platinum catalyst of good oxygen reduction activity.
Step 1), the ratio of the peanut and water is 100 g:100-1000 mL.Step 3), the sodium hydroxide solution
Concentration is 0.5-15 mol/L.Step 5), the reducing atmosphere is one or two in hydrogen, carbon monoxide.
The present invention adopts above technical scheme, by the way that peanut slurries, nano oxidized cerium precursor are mixed with iron presoma
And be heat-treated, prepare fuel battery cathode with proton exchange film catalyst.The beneficial effects of the present invention is:Peanut contains substantial amounts of
Protein, fat and carbohydrate, thus possess abundant nitrogen and carbon, meanwhile, cerium oxide has excellent oxygen
Storage/releasability, can effectively improve the oxygen reduction activity of cathod catalyst.
Description of the drawings
Fig. 1 is the electrochemistry that embodiment 1 prepares fuel battery cathode with proton exchange film non-platinum catalyst with peanut as raw material
Oxygen reduction reaction performance curve.
Specific embodiment
By the following specific examples further illustrate the invention, but protection scope of the present invention is not limited to following reality
Apply example.
A kind of preparation method of the fuel battery cathode with proton exchange film non-platinum catalyst with peanut as raw material, including it is following
Step:
1)Peanut and water are pressed into 100 g:The ratio of 100-1000 mL mixes and makes peanut slurries;
2)Cerium oxide precursor body and iron presoma are added, is stirred;
Wherein the mass ratio of peanut, cerium oxide precursor body and iron presoma is 1-100:1-50:1-35, carbon in catalyst, nitrogen,
Iron, the molar ratio of cerium oxide are 1-10:0.3-3:0.1-5:0.1-5;
The cerium oxide precursor body is cerous nitrate or ammonium ceric nitrate;Iron presoma be ferric nitrate, ferric sulfate, iron chloride, ferrocene,
Iron hydroxide, iron sulfide, iron halide or ferric perchlorate;
3)Concentration is added for the sodium hydroxide solution of 0.5-15mol/L and is stirred, obtain mixed liquor;
4)Above-mentioned mixed liquor is inserted in autoclave and is sealed, and the heating and thermal insulation 1-24h at 80-180 DEG C, then cool down,
Liquid is abandoned, is dried;
5)By step 4)Products therefrom is placed in reducing atmosphere, and the heating and thermal insulation 1-6 h at 300-500 DEG C, is had
The fuel battery cathode with proton exchange film non-platinum catalyst of good oxygen reduction activity.
Embodiment 1
A kind of preparation method of the fuel battery cathode with proton exchange film catalyst with good oxygen reduction activity, concrete steps
For:
1. 100 g peanuts are mixed with 100 ml water and be put in mixer, prepare peanut slurries;
2. take the peanut slurries prepared by 0.7 ml steps 1 to mix with 4.34g cerous nitrates and 4.04g ferric nitrates, and stir 60
min;
3. add concentration to be the NaOH aqueous solution of 0.5 M in the mixed liquor prepared by step 2, and stir 30 min;
4. the mixed liquor prepared by step 3 is inserted in autoclave and sealed, and 1 hour is incubated under 180 C;
5. the autoclave after insulation is cooled down, pour out liquid therein, filtered and be dried;
6. step 5 products therefrom is placed in hydrogen atmosphere, in and at 300 DEG C the h of heating and thermal insulation 6, had after cooling
The fuel battery cathode with proton exchange film non-platinum catalyst of good oxygen reduction activity.
The present embodiment is obtained C in catalyst:N:Fe:CeO2Molar ratio is 10:3:5:5.
As shown in Figure 1, under 0.9V potentials, the current density of Pt/C catalyst is 0.4 mA cm-2, prepared by embodiment 1
The current density of catalyst is 0.6 mA cm-2, the current density of close Pt/C catalyst(0.4 mA∙cm-2), thus it is of the invention
The prepared fuel battery cathode with proton exchange film non-platinum catalyst with peanut as raw material has suitable with Pt/C catalyst
Performance.
Embodiment 2
A kind of preparation method of the fuel battery cathode with proton exchange film catalyst with good oxygen reduction activity, concrete step
Suddenly it is:
1. 100 g peanuts are mixed with 1000 ml water and be put in mixer, prepare peanut slurries;
2. take the peanut slurries prepared by 15 ml steps 1 to mix with 4.3 g cerous nitrates and 4 g ferric sulfate, and stir 60 min;
3. add concentration to be the NaOH aqueous solution of 15 M in the mixed liquor prepared by step 2, and stir 30 min;
4. the mixed liquor prepared by step 3 is inserted in autoclave and sealed, and 24 hours are incubated under 80 C;
5. the autoclave after insulation is cooled down, pour out liquid therein, filtered and be dried;
6. step 5 products therefrom is placed in carbon monoxide atmosphere, and in and at 500 DEG C the h of heating and thermal insulation 1, after cooling both
Obtain the fuel battery cathode with proton exchange film catalyst of good oxygen reduction activity.
The present embodiment is obtained C in catalyst:N:Fe:CeO2Molar ratio is 1:0.3:0.1:0.1.
Embodiment 3
A kind of preparation method of the fuel battery cathode with proton exchange film catalyst with good oxygen reduction activity, concrete step
Suddenly it is:
1. 100 g peanuts are mixed with 500 ml water and be put in mixer, prepare peanut slurries;
2. take the peanut slurries prepared by 3 ml steps 1 to mix with 4.34 g cerous nitrates and 1.62 g iron chloride, and stir 60
min;
3. add concentration to be the NaOH aqueous solution of 7.5 M in the mixed liquor prepared by step 2, and stir 30 min;
4. the mixed liquor prepared by step 3 is inserted in autoclave and sealed, and 12 hours are incubated under 180 C;
5. the autoclave after insulation is cooled down, pour out liquid therein, filtered and be dried, both obtained good hydrogen reduction
The fuel battery cathode with proton exchange film catalyst of activity.
6. step 5 products therefrom is placed in into hydrogen:Carbon monoxide volume ratio is 1:In 1 reducing atmosphere, and in 400
The h of heating and thermal insulation 3.5 at DEG C, had both obtained the fuel battery cathode with proton exchange film catalyst of good oxygen reduction activity after cooling.
The present embodiment is obtained C in catalyst:N:Fe:CeO2Mass ratio is 5:1.7:2.5:2.5.
Embodiment 4
A kind of preparation method of the fuel battery cathode with proton exchange film non-platinum catalyst with peanut as raw material, including following step
Suddenly:
1)Peanut and water are pressed into 100 g:The ratio of 200 mL mixes and makes peanut slurries;
2)Cerium oxide precursor body ammonium ceric nitrate and iron presoma iron sulfide are added, is stirred;Wherein peanut, cerium oxide precursor body
It is 50 with the mass ratio of iron presoma:1:1;
3)Concentration is added for the sodium hydroxide solution of 2mol/L and is stirred, obtain mixed liquor;
4)Above-mentioned mixed liquor is inserted in autoclave and is sealed, and the heating and thermal insulation 12h at 120 DEG C, then cool down, abandon liquid
Body, is dried;
5)By step 4)Products therefrom is placed in reducing atmosphere, and the h of heating and thermal insulation 6 at 300 DEG C, is obtained with good
The fuel battery cathode with proton exchange film non-platinum catalyst of oxygen reduction activity.
Embodiment 5
A kind of preparation method of the fuel battery cathode with proton exchange film non-platinum catalyst with peanut as raw material, including following step
Suddenly:
1)Peanut and water are pressed into 100 g:The ratio of 600 mL mixes and makes peanut slurries;
2)Cerium oxide precursor body ammonium ceric nitrate and iron presoma iron hydroxide are added, is stirred;Wherein peanut, cerium oxide precursor
The mass ratio of body and iron presoma is 1:1:1;
3)Concentration is added for the sodium hydroxide solution of 10mol/L and is stirred, obtain mixed liquor;
4)Above-mentioned mixed liquor is inserted in autoclave and is sealed, and the heating and thermal insulation 6h at 150 DEG C, then cool down, liquid is abandoned,
It is dried;
5)By step 4)Products therefrom is placed in reducing atmosphere, and the heating and thermal insulation 2h at 500 DEG C, is obtained with good oxygen
The fuel battery cathode with proton exchange film non-platinum catalyst of reducing activity.
Embodiment 6
A kind of preparation method of the fuel battery cathode with proton exchange film non-platinum catalyst with peanut as raw material, including following step
Suddenly:
1)Peanut and water are pressed into 100 g:The ratio of 800 mL mixes and makes peanut slurries;
2)Cerium oxide precursor body ammonium ceric nitrate and iron presoma ferric perchlorate's iron sulfide are added, is stirred;Wherein peanut, oxidation
The mass ratio of cerium precursor and iron presoma is 100: 50:35;
3)Concentration is added for the sodium hydroxide solution of 8mol/L and is stirred, obtain mixed liquor;
4)Above-mentioned mixed liquor is inserted in autoclave and is sealed, and the heating and thermal insulation 16h at 100 DEG C, then cool down, abandon liquid
Body, is dried;
5)By step 4)Products therefrom is placed in reducing atmosphere, and the h of heating and thermal insulation 3 at 400 DEG C, is obtained with good
The fuel battery cathode with proton exchange film non-platinum catalyst of oxygen reduction activity.
Claims (7)
1. a kind of fuel battery cathode with proton exchange film non-platinum catalyst with peanut as raw material, it is characterised in that:The catalysis
Agent is to use peanut as carbon and the source of nitrogen, and is prepared from cerium oxide precursor body and iron forerunner's bluk recombination, raw material
The mass ratio of middle peanut, cerium oxide precursor body and iron presoma is 1-100:1-50:1-35, carbon, nitrogen, iron, oxidation in catalyst
The molar ratio of cerium is 1-10:0.3-3:0.1-5:0.1-5.
2. a kind of fuel battery cathode with proton exchange film non-platinum catalyst with peanut as raw material according to claim 1,
It is characterized in that:The cerium oxide precursor body is cerous nitrate or ammonium ceric nitrate.
3. a kind of fuel battery cathode with proton exchange film non-platinum catalyst with peanut as raw material according to claim 1,
It is characterized in that:The iron presoma be ferric nitrate, ferric sulfate, iron chloride, ferrocene, iron hydroxide, iron sulfide, iron halide or
Ferric perchlorate.
4. a kind of system of the fuel battery cathode with proton exchange film non-platinum catalyst with peanut as raw material as claimed in claim 1
Preparation Method, it is characterised in that:It is comprised the following steps:
1)Peanut is mixed and is made peanut slurries with water;
2)Cerium oxide precursor body and iron presoma are added in above-mentioned peanut slurries, is stirred;
3)Add sodium hydroxide solution and stir, obtain mixed liquor;
4)Above-mentioned mixed liquor is inserted in autoclave and is sealed, and the heating and thermal insulation 1-24 h at 80-180 DEG C, then cool down,
Liquid is abandoned, is dried;
5)By step 4)Products therefrom is placed in reducing atmosphere, and the heating and thermal insulation 1-6 h at 300-500 DEG C, is had
The fuel battery cathode with proton exchange film non-platinum catalyst of good oxygen reduction activity.
5. a kind of fuel battery cathode with proton exchange film non-platinum catalyst with peanut as raw material according to claim 4
Preparation method, it is characterised in that:Step 1), the ratio of the peanut and water is 100 g:100-1000 mL.
6. a kind of fuel battery cathode with proton exchange film non-platinum catalyst with peanut as raw material according to claim 4
Preparation method, it is characterised in that:Step 3), the concentration of sodium hydroxide solution is 0.5-15 mol/L.
7. a kind of fuel battery cathode with proton exchange film non-platinum catalyst with peanut as raw material according to claim 4
Preparation method, it is characterised in that:Step 5), the reducing atmosphere is one or two in hydrogen, carbon monoxide.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610890238.5A CN106654302B (en) | 2016-10-13 | 2016-10-13 | It is a kind of using peanut as proton exchange membrane non-platinum catalyst of raw material and preparation method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610890238.5A CN106654302B (en) | 2016-10-13 | 2016-10-13 | It is a kind of using peanut as proton exchange membrane non-platinum catalyst of raw material and preparation method thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
CN106654302A true CN106654302A (en) | 2017-05-10 |
CN106654302B CN106654302B (en) | 2019-06-11 |
Family
ID=58855618
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201610890238.5A Active CN106654302B (en) | 2016-10-13 | 2016-10-13 | It is a kind of using peanut as proton exchange membrane non-platinum catalyst of raw material and preparation method thereof |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN106654302B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113130918A (en) * | 2019-12-31 | 2021-07-16 | 广州市香港科大***研究院 | High-catalytic-performance M-N-C catalyst and preparation method and application thereof |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101601154A (en) * | 2006-09-13 | 2009-12-09 | 阿克伦大学 | The carbon monoxide-olefin polymeric that is used for fuel cell |
CN102324531A (en) * | 2011-05-26 | 2012-01-18 | 东华大学 | Carbon-supported CoN fuel-cell catalyst as well as preparation method and application thereof |
CN102916203A (en) * | 2012-11-07 | 2013-02-06 | 武汉理工大学 | Cathode non-platinum catalyst of proton exchange membrane fuel cell and preparation method thereof |
CN105789644A (en) * | 2016-03-02 | 2016-07-20 | 中南大学 | Preparation method for Fe-N/C oxygen reduction reaction composite electrocatalyst |
CN105810982A (en) * | 2016-05-05 | 2016-07-27 | 福州大学 | Proton exchange membrane fuel cell catalyst carrier with high conductivity |
-
2016
- 2016-10-13 CN CN201610890238.5A patent/CN106654302B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101601154A (en) * | 2006-09-13 | 2009-12-09 | 阿克伦大学 | The carbon monoxide-olefin polymeric that is used for fuel cell |
CN102324531A (en) * | 2011-05-26 | 2012-01-18 | 东华大学 | Carbon-supported CoN fuel-cell catalyst as well as preparation method and application thereof |
CN102916203A (en) * | 2012-11-07 | 2013-02-06 | 武汉理工大学 | Cathode non-platinum catalyst of proton exchange membrane fuel cell and preparation method thereof |
CN105789644A (en) * | 2016-03-02 | 2016-07-20 | 中南大学 | Preparation method for Fe-N/C oxygen reduction reaction composite electrocatalyst |
CN105810982A (en) * | 2016-05-05 | 2016-07-27 | 福州大学 | Proton exchange membrane fuel cell catalyst carrier with high conductivity |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113130918A (en) * | 2019-12-31 | 2021-07-16 | 广州市香港科大***研究院 | High-catalytic-performance M-N-C catalyst and preparation method and application thereof |
CN113130918B (en) * | 2019-12-31 | 2022-08-26 | 广州市香港科大***研究院 | High-catalytic-performance M-N-C catalyst and preparation method and application thereof |
Also Published As
Publication number | Publication date |
---|---|
CN106654302B (en) | 2019-06-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN102104157B (en) | Preparation method for carbon dry gel | |
CN104971760B (en) | The preparation method of sulfur-bearing, nitrogen and transition metal macropore carbon oxygen reduction catalyst | |
CN103170355B (en) | A kind of air electrode metal nitride catalyst preparation method being applied to air cell | |
CN107486233A (en) | A kind of carbonitride adulterates the preparation method and application of carbon-based cobalt/cobalt oxide nanocatalyst | |
CN107792884B (en) | A kind of air electrode catalyst material nano hexagon ZnMnO3Preparation method and application | |
US11901566B2 (en) | Bifunctional oxygen electrocatalyst, preparation method and use thereof | |
CN102867965A (en) | Porous microsphere perovskite type calcium manganese oxide compound and preparation method and application thereof | |
Wu et al. | Mn2O3 doping induced the improvement of catalytic performance for oxygen reduction of MnO | |
CN106654304A (en) | CuO/rGO composite material having efficient electrocatalysis oxygen reducing performance | |
CN111437853A (en) | Preparation method and application of CoP microsphere three-functional catalytic material loaded with vanadium carbide | |
CN111036247A (en) | Cobalt iron oxide-cobalt phosphate electrocatalytic oxygen evolution composite material and preparation method and application thereof | |
CN103464211B (en) | A kind of MnOxthe preparation method of/C-PTFE catalyst mastic | |
CN103730669B (en) | A kind of direct hydrazine fuel cell without film and manufacture method thereof | |
CN110729489B (en) | Alkaline fuel cell and preparation method of molybdenum-nickel alloy nano material | |
CN112725828B (en) | IrRu-based multicomponent alloy metal precipitation catalyst and preparation method thereof | |
CN106654302A (en) | Proton exchange membrane non-platinum catalyst using peanut as raw material and preparation method thereof | |
CN107768689A (en) | A kind of preparation method of the compound platinum catalyst of pyridine ion liquid polyoxometallate | |
CN108598502A (en) | A kind of Ni-Co metal oxides air cell electrode catalyst and its preparation method and application | |
CN108736030B (en) | Porous carbon-free catalyst for proton exchange membrane fuel cell and preparation method thereof | |
CN102867966A (en) | Porous micro-sphere post-spinel nitride calcium manganese oxygen compound, and preparation of and application thereof | |
CN113265682B (en) | Load-type RuO x /F-TiO 2 Oxygen evolution catalyst and preparation method and application thereof | |
CN108435252A (en) | A kind of preparation method of the compound platinum catalyst of conducting polymer polyoxometallate | |
CN110882698B (en) | Preparation and application of novel electrocatalyst | |
CN110112429B (en) | Preparation method of magnesium air fuel cell catalyst | |
CN108435178B (en) | Oxide with hexagonal structure, preparation method and application thereof in oxygen evolution reaction |
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 |