RU2011150714A - MATERIAL FOR AN ELECTRODE, METHOD OF ITS PRODUCTION BASED ON NANOCRYSTALLINE CEMENTITIS AND METHOD FOR ELECTROLYSIS OF ALKALINE AND ACID AQUEOUS SOLUTIONS - Google Patents
MATERIAL FOR AN ELECTRODE, METHOD OF ITS PRODUCTION BASED ON NANOCRYSTALLINE CEMENTITIS AND METHOD FOR ELECTROLYSIS OF ALKALINE AND ACID AQUEOUS SOLUTIONS Download PDFInfo
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- RU2011150714A RU2011150714A RU2011150714/02A RU2011150714A RU2011150714A RU 2011150714 A RU2011150714 A RU 2011150714A RU 2011150714/02 A RU2011150714/02 A RU 2011150714/02A RU 2011150714 A RU2011150714 A RU 2011150714A RU 2011150714 A RU2011150714 A RU 2011150714A
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- Russia
- Prior art keywords
- electrode
- mixture
- powder
- electrolysis
- graphite
- Prior art date
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- 239000000463 material Substances 0.000 title claims abstract 11
- 238000000034 method Methods 0.000 title claims abstract 11
- 239000002253 acid Substances 0.000 title claims abstract 3
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract 3
- 238000004519 manufacturing process Methods 0.000 title claims abstract 3
- 239000007864 aqueous solution Substances 0.000 title 1
- 239000000203 mixture Substances 0.000 claims abstract 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract 4
- 238000004137 mechanical activation Methods 0.000 claims abstract 4
- 239000000843 powder Substances 0.000 claims abstract 4
- 229910002804 graphite Inorganic materials 0.000 claims abstract 3
- 239000010439 graphite Substances 0.000 claims abstract 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract 2
- 229910052786 argon Inorganic materials 0.000 claims abstract 2
- 229910001567 cementite Inorganic materials 0.000 claims abstract 2
- 238000006243 chemical reaction Methods 0.000 claims abstract 2
- 239000001257 hydrogen Substances 0.000 claims abstract 2
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract 2
- KSOKAHYVTMZFBJ-UHFFFAOYSA-N iron;methane Chemical compound C.[Fe].[Fe].[Fe] KSOKAHYVTMZFBJ-UHFFFAOYSA-N 0.000 claims abstract 2
- 239000002245 particle Substances 0.000 claims abstract 2
- 238000003825 pressing Methods 0.000 claims abstract 2
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract 2
- 239000007772 electrode material Substances 0.000 abstract 2
- 229910052742 iron Inorganic materials 0.000 abstract 1
Landscapes
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Electrodes For Compound Or Non-Metal Manufacture (AREA)
Abstract
1. Способ приготовления материала для электрода, отличающийся тем, что он смесь порошка железа и графита в атомном отношении 75:25 подвергают механоактивации в среде аргона в течение 15÷20 ч.2. Способ приготовления материала для электрода по п.1, отличающийся тем, что смесь порошка железа и графита механоактивируют в шаровой планетарной мельнице.3. Материал для электрода, характеризующийся тем, что он состоит из частиц порошка с наноразмерными зернами цементита и α-Fe, полученных механоактивацией по п.1 в соотношении указанных компонентов (90÷95):(10÷5) мас. %.4. Способ изготовления электрода из материала для электрода по п.3, отличающийся тем, что материал для электрода предварительно выдерживают в вакууме 5÷10 Па в течение 1÷2 ч при температуре не более 450÷550°С, а затем ведут магнитно-импульсное прессование компонентов порошковой смеси при амплитуде 1÷2 ГПа и длительностью импульсов давления 300÷400 мкс.5. Способ электролиза водных щелочных и кислотных растворов, отличающийся тем, что для снижения перенапряжения реакции выделения водорода, используют катод по п.4 из материала, приготовленного способом по пп.1-3.1. A method for preparing material for an electrode, characterized in that it is a mixture of iron and graphite powder in an atomic ratio of 75:25 subjected to mechanical activation in argon for 15÷20 hours. Method for preparing material for an electrode according to claim 1, characterized in that a mixture of iron powder and graphite is mechanically activated in a planetary ball mill. The material for the electrode, characterized in that it consists of powder particles with nanosized grains of cementite and α-Fe obtained by mechanical activation according to claim 1 in the ratio of the indicated components (90÷95):(10÷5) wt. %.4. A method for manufacturing an electrode from an electrode material according to claim 3, characterized in that the electrode material is preliminarily kept in a vacuum of 5÷10 Pa for 1÷2 h at a temperature of not more than 450÷550°C, and then magnetic-pulse pressing is carried out components of the powder mixture at an amplitude of 1÷2 GPa and a duration of pressure pulses of 300÷400 μs.5. A method for electrolysis of aqueous alkaline and acid solutions, characterized in that to reduce the overvoltage of the hydrogen evolution reaction, a cathode according to claim 4 is used from a material prepared by the method according to claims 1-3.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2011150714/02A RU2511546C2 (en) | 2011-12-13 | 2011-12-13 | Cathode material based on nanocrystalline cementite, method of its production, cathode for electrolytic obtaining of hydrogen from water alkaline and acidic solutions and method of its manufacturing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2011150714/02A RU2511546C2 (en) | 2011-12-13 | 2011-12-13 | Cathode material based on nanocrystalline cementite, method of its production, cathode for electrolytic obtaining of hydrogen from water alkaline and acidic solutions and method of its manufacturing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU2011150714A true RU2011150714A (en) | 2013-06-20 |
| RU2511546C2 RU2511546C2 (en) | 2014-04-10 |
Family
ID=48785113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2011150714/02A RU2511546C2 (en) | 2011-12-13 | 2011-12-13 | Cathode material based on nanocrystalline cementite, method of its production, cathode for electrolytic obtaining of hydrogen from water alkaline and acidic solutions and method of its manufacturing |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU2511546C2 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MX169643B (en) * | 1985-04-12 | 1993-07-16 | Oronzio De Nora Impianti | ELECTRODE FOR ELECTROCHEMICAL PROCESSES, PROCEDURE FOR ITS PRODUCTION AND ELECTROLYSIS TANK CONTAINING SUCH ELECTRODE |
| RU2089670C1 (en) * | 1995-01-17 | 1997-09-10 | Дагестанский Государственный Университет Им.В.И.Ленина | Process of generation of hydrogen |
| UA65397U (en) * | 2011-04-07 | 2011-12-12 | Львівський Національний Університет Імені Івана Франка | Method for producing of nanostructure cathode material based on nickel for electrochemical extraction of hydrogen |
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2011
- 2011-12-13 RU RU2011150714/02A patent/RU2511546C2/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| RU2511546C2 (en) | 2014-04-10 |
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| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20151214 |