EP0074963A1 - Elements constructifs de cellules d'electrolyse - Google Patents
Elements constructifs de cellules d'electrolyseInfo
- Publication number
- EP0074963A1 EP0074963A1 EP19820900783 EP82900783A EP0074963A1 EP 0074963 A1 EP0074963 A1 EP 0074963A1 EP 19820900783 EP19820900783 EP 19820900783 EP 82900783 A EP82900783 A EP 82900783A EP 0074963 A1 EP0074963 A1 EP 0074963A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- component
- cells according
- electrochemical
- base body
- oxide layer
- 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.)
- Withdrawn
Links
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 14
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 5
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- 238000005229 chemical vapour deposition Methods 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 150000004767 nitrides Chemical class 0.000 claims description 2
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 2
- 229910000963 austenitic stainless steel Inorganic materials 0.000 claims 1
- 230000000737 periodic effect Effects 0.000 claims 1
- 239000000126 substance Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 210000004027 cell Anatomy 0.000 description 15
- 238000000034 method Methods 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 239000003792 electrolyte Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 210000003850 cellular structure Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010285 flame spraying Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 1
- 238000007750 plasma spraying Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910052714 tellurium Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052726 zirconium 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
- C25B13/00—Diaphragms; Spacing elements
- C25B13/04—Diaphragms; Spacing elements characterised by the material
Definitions
- the separator must be sufficiently thin and porous to increase the electrical resistance of the cell as little as possible, be corrosion-resistant to the highly concentrated potassium hydroxide solution, and have sufficient mechanical properties to be easily installed in an industrial cell.
- Other examples are electrodes, which should be insulating in certain places, the walls of cells which are exposed to the interface between the electrolytes and the gas phase, or the passage of the electrodes through the cell walls.
- the invention described here is therefore a component of an electrochemical electrolysis cell, which consists of a metallic base material, which is either directly coated with a thin oxide layer, or which still has a suitable intermediate layer between the oxide layer and the base material.
- a separator for an electrolysis cell consists of a fine-meshed network of steel wire with a mesh size of -30 ⁇ m, which was covered with a 2 ⁇ m thick layer of TiO 2 using the CVD process and then treated at elevated temperature in concentrated potassium hydroxide solution .
- the component thus obtained is corrosion-resistant, flexible and can easily be installed in an electrolysis cell.
- a separator for an electrolysis cell consists of a fine-mesh network made of austenitic steel, which was first provided with a 1 ⁇ m thick TiN layer and then with a 1 ⁇ m thick Al 2 O 3 layer using the CVD process.
- Example 3 A separator for an electrolysis cell consists of a felt made of rustproof, ferritic steel, which in its entire volume is first of all coated with a 0.5 ⁇ m to 1 ⁇ m thick layer of TiC using the CVD process and then with a 1 ⁇ m layer thick layer of Al 2 O 3 was coated.
- Example 4 An electrode holder that is exposed to both the electrolyte and the corrosive gases in the cell consists of a ferritic, stainless steel, which is initially coated with a 2 ⁇ m thick TiC layer and then with a 1 ⁇ m thick Al 2 O 3 Layer was provided using the CVD process.
- the insulating, ceramic layers can consist not only of Al 2 O 3 or TiO 2 but also of other ceramic materials, such as zirconium oxide, zirconates, titanates and similar substances.
- the intermediate layer can consist of carbides, nitrides or borides of the elements Ti, Zr, Nb, Te or the like.
- CVD process is particularly suitable for the application of the layers, other processes, e.g. Plasma spraying, flame spraying and the like are used.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrodes For Compound Or Non-Metal Manufacture (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Chemical Vapour Deposition (AREA)
Abstract
Les elements constructifs destines a la fabrication de cellules d'electrolyse, sont electriquement isolants, resistants aux produits chimiques contenus dans les cellules et presentent une solidite et une flexibilite leur permettant d'etre utilises dans des cellules d'electrolyse industrielle. Les elements constructifs sont remarquables en ce qu'ils sont constitues par un corps de base metallique revetu d'une mince couche d'oxyde. Entre la couche d'oxyde et le corps de base peut etre disposee une couche intermediaire. Les elements constructifs peuvent constituer des separateurs, des porte-electrodes, des parois etc...
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH188881 | 1981-03-20 | ||
| CH1888/81 | 1981-03-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0074963A1 true EP0074963A1 (fr) | 1983-03-30 |
Family
ID=4220940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19820900783 Withdrawn EP0074963A1 (fr) | 1981-03-20 | 1982-03-19 | Elements constructifs de cellules d'electrolyse |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0074963A1 (fr) |
| WO (1) | WO1982003231A1 (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100361548B1 (ko) | 1999-04-19 | 2002-11-21 | 스미토모 긴조쿠 고교 가부시키가이샤 | 고체고분자형 연료전지용 스텐레스 강재 |
| DE10194846B4 (de) * | 2000-11-10 | 2008-02-28 | Honda Giken Kogyo K.K. | Verfahren zur Oberflächenbehandlung eines rostfreien Stahlprodukts für eine Brennstoffzelle |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1255946A (fr) * | 1958-10-29 | 1961-03-17 | Amalgamated Curacao Patents Co | Diaphragme d'électrolyse |
| US3222265A (en) * | 1958-10-29 | 1965-12-07 | Amalgamated Curacao Patents Co | Electrolysis method and apparatus employing a novel diaphragm |
| US3248311A (en) * | 1962-03-29 | 1966-04-26 | Ethyl Corp | Manufacture of sodium |
| FR2067802A5 (en) * | 1969-11-18 | 1971-08-20 | Paris Rene | Metal boride electrodes |
| IT1115372B (it) * | 1977-07-15 | 1986-02-03 | Oronzio De Nora Impianti | Membrane ceramiche a due fasi per celle elettrolitiche |
| US4157943A (en) * | 1978-07-14 | 1979-06-12 | The International Nickel Company, Inc. | Composite electrode for electrolytic processes |
-
1982
- 1982-03-19 WO PCT/CH1982/000042 patent/WO1982003231A1/fr unknown
- 1982-03-19 EP EP19820900783 patent/EP0074963A1/fr not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO8203231A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1982003231A1 (fr) | 1982-09-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Designated state(s): AT BE CH DE FR GB LI LU NL SE |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 19830531 |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: TANNENBERGER, HELMUT |