SU1186700A1 - Electrode for electrochemical generation of hydrogen - Google Patents
Electrode for electrochemical generation of hydrogen Download PDFInfo
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- SU1186700A1 SU1186700A1 SU843726469A SU3726469A SU1186700A1 SU 1186700 A1 SU1186700 A1 SU 1186700A1 SU 843726469 A SU843726469 A SU 843726469A SU 3726469 A SU3726469 A SU 3726469A SU 1186700 A1 SU1186700 A1 SU 1186700A1
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- SU
- USSR - Soviet Union
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- hydrogen
- electrode
- boron
- graphite
- electrochemical generation
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Abstract
ЭЛЕКТРОД дл ЭЛЕКТРОХИМИЧЕСКОГО ПОЛУЧЕНИЯ ВОДОРОДА, содержащий дисилицид молибдена, отличающийс тем, что, с целью снижени перенапр жени водогрода , электрод дополнительно содержит графит и бор при следующем соотнощении ингредиентов, мае.%: Дисилицид молибдена91-99 Графит0,5-7 Бор0,5-2 (Л сELECTRODE FOR ELECTROCHEMICAL PREPARATION OF HYDROGEN containing molybdenum disilicide, characterized in that, in order to reduce the overloading of water-hydrogen, the electrode additionally contains graphite and boron at the following ratio of ingredients, may.%: Molybdenum disilicide91-99 Graphite 0.5-7-7.5.5 2 (L s
Description
00. Од00. Od
I Изобретение относитс к электро химическому производству, а конкре но к электродам,примен емым при электролизе кислых растворов с получением водорода. Цель изобретени - снижение перенапр жени водорода. Пример. Электроды готов т методом прессовани с последующим спеканием в атмосфере водорода при 1100 С в течение 2 ч. Катодное вьщеление водорода ведут из 5 н. раствора серной кислоты, при плотности тока О,1 А/см и 20 С при измерении паренапр жени выделени водорода. Состав электрода и результаты измерени перенапр жени показаны в таблице. Данные таблицы свидетельствуют о TCV, что электроды, содержащие. 02 мас.%: дисилицид молибдена 91-99J графит 0,5-7 .и бор 0,5-2, имеют более низкое перенапр жение вьщелени водорода, чем известные электроды. При увеличении шш уменьшении содержани графита и бора в электроде перенапр жение выделени водорода становитс большим, чем;; у известного. Увеличиваетс перенапр жение выделени водорода и в том случае, если производитс добавка либо только графита, либо только бора. Увеличение перенапр жени выделени водорода и бора в реакции выделени водорода (водород вьщел етс на этих материалах с . перенапр жением пор дка 1,2 В) перекрывает эффект повьшени электропроводности между частицами дисицида молибдена и на границе электрод - раствор.I The invention relates to electrochemical production, and specifically to electrodes used in the electrolysis of acidic solutions to produce hydrogen. The purpose of the invention is to reduce hydrogen overvoltage. Example. Electrodes are prepared by pressing, followed by sintering in an atmosphere of hydrogen at 1100 ° C for 2 hours. Cathode extraction of hydrogen is carried out from 5N. sulfuric acid solution, at a current density of 0 A / cm and 20 ° C, when measuring the vapor pressure of hydrogen evolution. The composition of the electrode and the overvoltage measurement results are shown in the table. The data in the table indicate TCV that electrodes contain. 02% by weight: molybdenum disilicide 91-99J graphite 0.5-7. And boron 0.5-2, have a lower hydrogen overvoltage than the known electrodes. With increasing shsh reduction of graphite and boron in the electrode, the overpotential of hydrogen evolution becomes greater than ;; from the famous. The overpotential of hydrogen evolution increases even if either graphite or boron is added. The increase in the hydrogen and boron evolution overpotential in the hydrogen evolution reaction (hydrogen is applied on these materials by c. Overvoltage in the order of 1.2 V) overlaps the effect of increasing electrical conductivity between molybdenum disicide particles and at the electrode-solution interface.
Продолжение таблицыTable continuation
14 1514 15
98 93,598 93.5
ОABOUT
5five
0,483 0.483
2 1,5 0,3182 1.5 0.318
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU843726469A SU1186700A1 (en) | 1984-04-13 | 1984-04-13 | Electrode for electrochemical generation of hydrogen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU843726469A SU1186700A1 (en) | 1984-04-13 | 1984-04-13 | Electrode for electrochemical generation of hydrogen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1186700A1 true SU1186700A1 (en) | 1985-10-23 |
Family
ID=21113546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU843726469A SU1186700A1 (en) | 1984-04-13 | 1984-04-13 | Electrode for electrochemical generation of hydrogen |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1186700A1 (en) |
-
1984
- 1984-04-13 SU SU843726469A patent/SU1186700A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Матвейко Н.П., СлепНев Г.Е. и др. Некоторые электрохимические свойства бисилицида титана. Рукопись, деп. в БелНИИНТИ, 16.06.82, № 417. Всесоюзна конференци по электрохимии. - Тезисы докладов, Тбилиси, Медниереба, 1969, с. 580. * |
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