GB797565A - A method of activating the cathode surfaces of electrolytic hydrogen generators - Google Patents
A method of activating the cathode surfaces of electrolytic hydrogen generatorsInfo
- Publication number
- GB797565A GB797565A GB9899/56A GB989956A GB797565A GB 797565 A GB797565 A GB 797565A GB 9899/56 A GB9899/56 A GB 9899/56A GB 989956 A GB989956 A GB 989956A GB 797565 A GB797565 A GB 797565A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solution
- noble metal
- electrolytic hydrogen
- activating
- hydrogen generators
- 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.)
- Expired
Links
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
- 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
Abstract
The hydrogen overvoltage of iron cathodes of electrolytic hydrogen generators is reduced by coating the iron with a noble metal or metals (Pt, Pd, Au, Os, Rh, Ir) by precipitation from an aqueous solution of the salts thereof containing less than 5 gm. and preferably only 0.1 to 0.5 gm. of the noble metal per litre. The deposition may be by ionic exchange; or alternatively, an alkaline solution of the salt of the noble metal may be added to the usual electrolyte so that there results less than 0.2 gm. of noble metal per litre of solution and the solution is then electrolyzed. Preferably a Pt-group metal and an Au are used; thus 10-30 per cent auric chloride may be added to Pt or Pd chloride in making the depositing solution. The method is said to be especially suitable for "pressure electrolyzers" decompressing water at more than 5, and particularly at 20 to 50, atmospheres.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9899/56A GB797565A (en) | 1956-03-29 | 1956-03-29 | A method of activating the cathode surfaces of electrolytic hydrogen generators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9899/56A GB797565A (en) | 1956-03-29 | 1956-03-29 | A method of activating the cathode surfaces of electrolytic hydrogen generators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB797565A true GB797565A (en) | 1958-07-02 |
Family
ID=9880857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9899/56A Expired GB797565A (en) | 1956-03-29 | 1956-03-29 | A method of activating the cathode surfaces of electrolytic hydrogen generators |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB797565A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3113080A (en) * | 1961-05-22 | 1963-12-03 | Smith Corp A O | Continuous decontamination of the hydrogen acquiring surface of a palladium diaphragm used for the transfer of atomic hydrogen |
| DE1270352B (en) * | 1962-04-27 | 1968-06-12 | Leesona Corp | Process for producing a layer of palladium black on at least one surface of a non-porous membrane made of palladium-silver |
| EP0050373A1 (en) * | 1980-10-21 | 1982-04-28 | Oronzio De Nora S.A. | Electrolysis cell and method of generating halogen |
-
1956
- 1956-03-29 GB GB9899/56A patent/GB797565A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3113080A (en) * | 1961-05-22 | 1963-12-03 | Smith Corp A O | Continuous decontamination of the hydrogen acquiring surface of a palladium diaphragm used for the transfer of atomic hydrogen |
| DE1270352B (en) * | 1962-04-27 | 1968-06-12 | Leesona Corp | Process for producing a layer of palladium black on at least one surface of a non-porous membrane made of palladium-silver |
| EP0050373A1 (en) * | 1980-10-21 | 1982-04-28 | Oronzio De Nora S.A. | Electrolysis cell and method of generating halogen |
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