EP0209427A1 - Cathode pour électrolyse et un procédé de fabrication de la dite cathode - Google Patents
Cathode pour électrolyse et un procédé de fabrication de la dite cathode Download PDFInfo
- Publication number
- EP0209427A1 EP0209427A1 EP86401327A EP86401327A EP0209427A1 EP 0209427 A1 EP0209427 A1 EP 0209427A1 EP 86401327 A EP86401327 A EP 86401327A EP 86401327 A EP86401327 A EP 86401327A EP 0209427 A1 EP0209427 A1 EP 0209427A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layers
- cathode
- metal
- coating
- substrate
- 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.)
- Ceased
Links
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 239000010410 layer Substances 0.000 claims abstract description 50
- 238000000576 coating method Methods 0.000 claims abstract description 35
- 239000011248 coating agent Substances 0.000 claims abstract description 34
- 229910052751 metal Inorganic materials 0.000 claims abstract description 32
- 239000002184 metal Substances 0.000 claims abstract description 32
- 239000000758 substrate Substances 0.000 claims abstract description 31
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 14
- 150000004706 metal oxides Chemical class 0.000 claims abstract description 13
- 239000010970 precious metal Substances 0.000 claims abstract description 7
- 239000002344 surface layer Substances 0.000 claims abstract description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 25
- 150000003839 salts Chemical class 0.000 claims description 19
- 239000010936 titanium Substances 0.000 claims description 19
- 238000010438 heat treatment Methods 0.000 claims description 15
- 229910052759 nickel Inorganic materials 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 10
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 9
- 238000011282 treatment Methods 0.000 claims description 9
- 238000000151 deposition Methods 0.000 claims description 6
- 150000002739 metals Chemical class 0.000 claims description 5
- 238000010025 steaming Methods 0.000 claims description 5
- 229910001925 ruthenium oxide Inorganic materials 0.000 claims description 4
- 239000000725 suspension Substances 0.000 claims description 4
- 239000003085 diluting agent Substances 0.000 claims description 3
- 230000000737 periodic effect Effects 0.000 claims description 3
- WOCIAKWEIIZHES-UHFFFAOYSA-N ruthenium(iv) oxide Chemical compound O=[Ru]=O WOCIAKWEIIZHES-UHFFFAOYSA-N 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- 150000001242 acetic acid derivatives Chemical class 0.000 claims description 2
- 125000005595 acetylacetonate group Chemical group 0.000 claims description 2
- 150000004649 carbonic acid derivatives Chemical class 0.000 claims description 2
- 150000004820 halides Chemical class 0.000 claims description 2
- 150000002823 nitrates Chemical class 0.000 claims description 2
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical class [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 150000003467 sulfuric acid derivatives Chemical class 0.000 claims description 2
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 claims 1
- 239000011707 mineral Substances 0.000 claims 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims 1
- 239000007864 aqueous solution Substances 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 229910001508 alkali metal halide Inorganic materials 0.000 abstract description 3
- 150000008045 alkali metal halides Chemical class 0.000 abstract description 3
- 239000012528 membrane Substances 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 32
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 15
- 235000002639 sodium chloride Nutrition 0.000 description 14
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 4
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 4
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical class [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052707 ruthenium Inorganic materials 0.000 description 3
- 238000004381 surface treatment Methods 0.000 description 3
- YIWUKEYIRIRTPP-UHFFFAOYSA-N 2-ethylhexan-1-ol Chemical compound CCCCC(CC)CO YIWUKEYIRIRTPP-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 229910052741 iridium Inorganic materials 0.000 description 2
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 229910052762 osmium Inorganic materials 0.000 description 2
- SYQBFIAQOQZEGI-UHFFFAOYSA-N osmium atom Chemical compound [Os] SYQBFIAQOQZEGI-UHFFFAOYSA-N 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- -1 platinum group metal oxide Chemical class 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229910052703 rhodium Inorganic materials 0.000 description 2
- 239000010948 rhodium Substances 0.000 description 2
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 229910001252 Pd alloy Inorganic materials 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- ROZSPJBPUVWBHW-UHFFFAOYSA-N [Ru]=O Chemical class [Ru]=O ROZSPJBPUVWBHW-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 229910001514 alkali metal chloride Inorganic materials 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 239000010431 corundum Substances 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- ZOMNIUBKTOKEHS-UHFFFAOYSA-L dimercury dichloride Chemical class Cl[Hg][Hg]Cl ZOMNIUBKTOKEHS-UHFFFAOYSA-L 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000007590 electrostatic spraying Methods 0.000 description 1
- 150000004687 hexahydrates Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- BSIDXUHWUKTRQL-UHFFFAOYSA-N nickel palladium Chemical compound [Ni].[Pd] BSIDXUHWUKTRQL-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 229910003446 platinum oxide Inorganic materials 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- BIXNGBXQRRXPLM-UHFFFAOYSA-K ruthenium(3+);trichloride;hydrate Chemical compound O.Cl[Ru](Cl)Cl BIXNGBXQRRXPLM-UHFFFAOYSA-K 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 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
- 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
- C25B11/091—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material consisting of at least one catalytic element and at least one catalytic compound; consisting of two or more catalytic elements or catalytic compounds
- C25B11/093—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material consisting of at least one catalytic element and at least one catalytic compound; consisting of two or more catalytic elements or catalytic compounds at least one noble metal or noble metal oxide and at least one non-noble metal oxide
-
- 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
Definitions
- the present invention relates to a new cathode usable in electrolysis. It also relates to a method of manufacturing this cathode. It relates very particularly to a cathode which can be used in the electrolysis of aqueous alkali metal halide solution which is remarkable in particular for the low value of its working potential and for the stability over time of its electrochemical performance.
- This cathode belongs to the family of metallic cathodes, activated, obtained by coating a cathode substrate by means of various activation materials, the aim being essentially to reduce the hydrogen overvoltage in an alkaline medium.
- British patent 1,511,719 describes a cathode comprising a metal substrate, a cobalt coating and a second ruthenium coating.
- a technique for depositing a coating consisting of a nickel-palladium alloy on a substrate, for example made of nickel, is also described in US Patent 3,216,919: according to this patent, an alloy layer is applied to the substrate in powder form and then sintered said alloy powder.
- Japanese patent application published under the number 54-110983 (US Patent No. 4,465,580) describes a cathode carrying a coating consisting of a dispersion of particles of nickel or a nickel alloy and an activator consisting of platinum , ruthenium, iridium, rhodium, palladium or osmium or an oxide of these metals.
- Japanese patent application published under number 53-010036 describes a cathode having a valve metal substrate and a coating of an alloy of at least one platinum group metal and a valve metal and, optionally a surface coating d '' at least one platinum group metal.
- the invention provides a new cathode, usable in particular in the electrolysis of aqueous solutions of alkali metal halides, said cathode consisting of an electrically conductive substrate carrying a coating based on a platinum group metal oxide, this cathode being characterized in that it carries a coating consisting of a plurality of layers of metal oxides, the surface layer being substantially constituted by an oxide of a valve metal and the intermediate layer or at least one of the intermediate layers being substantially constituted by a metal oxide precious of group VIII of the periodic table.
- substantially is used here, in relation to the surface and intermediate layers, to indicate that said layers may consist of the oxide of the only metal concerned or by a mixed oxide of the metal concerned and of the second metal in small proportion, by example in a molar ratio not exceeding 1/10.
- the expression metal valve is used in its usual meaning, that is to say that it designates the metals of groups 4b, 5b and 6b of the periodic table, with the exception being of chromium.
- the invention relates most particularly to cathodes comprising an electrically conductive substrate and a coating, the said coating consisting of one or more layers of ruthenium oxide (Ru 0 2 ) associated with one or more layers of oxides titanium and / or zirconium. It especially relates to cathodes whose coating comprises Ru 0 2 and Ti 0 2 .
- Ru 0 2 ruthenium oxide
- cathodes the coating of which comprises, from the electroconductive substrate either one or more layers of Ru O 2 followed by one or more layers of Ti 0 2 or a succession of one or more layers Ti 02 / one or more layers Ru 02 / one or more layers Ti 0 2 .
- the term surface layer precisely designates the oxide layer whose surface is in contact direct with the electrolyte, the expression intermediate layer designating any layer disposed between the electroconductive substrate and said surface layer.
- the invention particularly relates to cathodes in the coating of which all or part of the above-mentioned oxides are in the form of scales.
- tortoiseshell designates a film of planar shape, of portion of cylinder or sphere or the combination of said shapes, the thickness of which is less than one tenth of the average of the two dimensions of the quadrilateral in which said tortoiseshell can be entered, the average value of said dimensions can be between 1 and 100 microns and more precisely between 3 and 30 microns.
- the coating consists wholly or partially of at least one oxide of a precious metal, that is to say ruthenium, rhodium, palladium, osmium, iridium and platinum. Preference is given in the invention to ruthenium oxide or to a combination of said oxide with one or more other precious metal oxides.
- the molar ratio of the oxides of precious metals and of valve metal generally between 10/1 and 1/10 and preferably between 1/5 and 5/1.
- the material constituting the substrate can be chosen from electrically conductive materials. It will advantageously be chosen from the group consisting of nickel, stainless steel and mild steel without this list being limiting.
- the substrate can be in the form of a plate, sheet, with or without a certain number of orifices or perforations, lattice, wire mesh or expanded metal, grids, the said materials being able to have a plane, cylindrical shape or any other shape depending on the technology used.
- the invention also relates to a method of manufacturing these cathodes.
- This process essentially consists of depositing on the substrate, optionally subjected to an appropriate preliminary treatment, the layers of metal salts and then subjecting the assembly to a heat treatment leading to the oxidized form.
- the preliminary treatment of the substrate advantageously consists of a degreasing - if necessary - followed by a pickling, mechanical t / or chemical, according to techniques now well known.
- the technique essentially consists in depositing successively the layers of metal salt solutions on the substrate.
- the same technology can be used or the layers containing the two metal salts concerned can be directly deposited.
- the metal salts are deposited in the form of a solution or suspension.
- the solvent or diluent may consist of water, mineral or organic acid or even an organic solvent.
- An organic solvent is preferably used such as dimethylformamide, an alcohol and in particular ethanol or 2-ethylhexanol.
- the atomic concentration of metal is between 3.10 and 3 moles / liter and preferably between 1 and 2 moles / liter.
- the metal salts which can be used in the invention generally consist of inorganic or organic salts of metals, such as, for example, halides, nitrates, carbonates, sulfates, or even acetates, acetylacetonates.
- metals such as, for example, halides, nitrates, carbonates, sulfates, or even acetates, acetylacetonates.
- hexachloroplatinic acid hexahydrate and ruthenium chloride hydrate will advantageously be used.
- the above-mentioned layers of salt can be deposited using conventional techniques, immersing the substrates in the solution or suspensions, coating with a brush, brush or the like, electrostatic spraying.
- the preparation of solutions or suspensions and the deposition are generally carried out at ambient temperature and in air. Naturally, it is possible, if necessary, to raise the temperature in particular to facilitate the dissolution of certain salts, and / or to work under an atmosphere of nitrogen or other inert gas with respect to said salts.
- the transformation of metal salts into oxides is generally done by heat treatment.
- This treatment is advantageously preceded by an air drying intended to totally or partially remove the solvent or diluent.
- This steaming can be done at a temperature of up to 200 ° C, the temperature range from 100 to 150 ° C being particularly recommended.
- the duration of this treatment is generally a few tens of minutes.
- the actual treatment is generally carried out in air at a temperature varying, depending on the salts used, between 200 and 1000 ° C. Preferably one operates at a temperature between 400 and 750 ° C.
- the duration of this heat treatment is generally between 15 min and 1 h per layer. This heat treatment can be carried out after each baking or after the last baking.
- the cathode according to the invention is characterized by the excellent adhesion of the electroactive coatings to the substrate.
- the cathode of the invention is suitable for use in electrolysis cells in which water or aqueous solution is electrolyzed with production of hydrogen by electrolysis, released at the cathode.
- the cathode is particularly suitable for the electrolysis of aqueous solutions of alkali metal chlorides and in particular of aqueous solutions of sodium chlorides and to the electrolysis of water, for example in the electrolysis of aqueous hydroxide solutions. potassium.
- microporous diaphragms can be used as separators, but the cathodes according to the invention are of particular interest in membrane technology.
- the substrate consists of a nickel plate of 200 x 10 x 0.6 mm.
- a surface treatment is carried out using corundum (average diameter of the beads 250 mm).
- the nickel plate is coated with this solution. Steaming is carried out in air (120 ° C, 30 min), followed by a heat treatment in air (500 ° C, 30 min). After cooling, the coating / baking / heat treatment sequence is repeated.
- a deposit of 1.4 mg / cm 2 of Ru O 2 is obtained in t in the form of scales of average dimensions of between 3 and 30 ⁇ m, and showing the structure of Ru 0 2 in X-ray.
- a nickel substrate is used which has undergone a surface treatment under the conditions of Example 1.
- Two layers of solution B are deposited on the nickel substrate, according to the coating / baking / heat treatment sequence of Example 1, then after cooling two layers of solution A, also following the coating / steaming / heat treatment sequence and again two layers of solution B followed by the same treatments.
- the total deposit of metal oxides is 1.75 m g / cm 2 including 0.6 mg / cm 2 of Ru O 2 .
- This cathode carrying a triple coating comprising Ti 0 2 , Ru 0 2 and Ti 0 2 is tested in soda, as in Example 1: the working potential is - 1240 mV compared to DHW After 40 hours the potential is from - 1210 mV.
- This cathode, carrying a triple coating Zr 0 2 , Ru 0 2 , Zr O 2 is tested in sodium hydroxide as in Example 1.
- the work potential is -1210 mV compared to E.C.S. ; after 16 hours, the potential is -1200 mV.
- This cathode, carrying a double coating Ru 0 2 / Zr 0 2 is tested in soda as in Example 1.
- the work potential is -1210 mV compared to E.C.S. After 16 hours, the potential is unchanged.
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)
- Inert Electrodes (AREA)
- Electroplating Methods And Accessories (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8509540A FR2583781A1 (fr) | 1985-06-24 | 1985-06-24 | Cathode pour electrolyse et un procede de fabrication de ladite cathode |
| FR8509540 | 1985-06-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0209427A1 true EP0209427A1 (fr) | 1987-01-21 |
Family
ID=9320572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP86401327A Ceased EP0209427A1 (fr) | 1985-06-24 | 1986-06-17 | Cathode pour électrolyse et un procédé de fabrication de la dite cathode |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0209427A1 (enrdf_load_stackoverflow) |
| JP (1) | JPS61295386A (enrdf_load_stackoverflow) |
| KR (1) | KR890003514B1 (enrdf_load_stackoverflow) |
| CN (1) | CN86104356A (enrdf_load_stackoverflow) |
| FR (1) | FR2583781A1 (enrdf_load_stackoverflow) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0298055A1 (en) * | 1987-06-29 | 1989-01-04 | Permelec Electrode Ltd | Cathode for electrolysis and process for producing the same |
| FR2775486A1 (fr) * | 1998-03-02 | 1999-09-03 | Atochem Elf Sa | Cathode specifique, utilisable pour la preparation d'un chlorate de metal alcalin et son procede de fabrication |
| FR2852973A1 (fr) * | 2003-03-28 | 2004-10-01 | Atofina | Procede de formation d'un revetement d'oxydes metalliques sur un substrat electroconducteur; cathode activee en resultant et son utilisation pour l'electrolyse de solutions acqueuses de chorures de meteaux alcalins. |
| RU2505624C2 (ru) * | 2008-01-31 | 2014-01-27 | Касале Кемикэлз С.А. | Катод электролизеров для разложения воды с высокими рабочими характеристиками |
| US20150308004A1 (en) * | 2012-11-29 | 2015-10-29 | Industrie De Nora S.P.A. | Cathode for electrolytic evolution of hydrogen |
| US20220243338A1 (en) * | 2019-06-12 | 2022-08-04 | Olin Corporation | Electrode coating |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013166994A (ja) * | 2012-02-15 | 2013-08-29 | Asahi Kasei Chemicals Corp | 電解用電極、電解槽及び電解用電極の製造方法 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3915838A (en) * | 1968-04-02 | 1975-10-28 | Ici Ltd | Electrodes for electrochemical processes |
| FR2289632A1 (fr) * | 1974-10-29 | 1976-05-28 | Marston Excelsior Ltd | Procede de realisation d'electrodes pour operations electrolytiques |
| FR2311108A1 (fr) * | 1975-05-12 | 1976-12-10 | Hodogaya Chemical Co Ltd | Cathode activee pour electrolyse |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5927391B2 (ja) * | 1976-12-15 | 1984-07-05 | 三洋電機株式会社 | 光エネルギ−利用の水分解装置 |
| GB2083837B (en) * | 1980-08-18 | 1984-06-27 | Diamond Shamrock Corp | Manufacture of electrode with manganese dioxide coating valve metal base intermediate semiconducting layer |
-
1985
- 1985-06-24 FR FR8509540A patent/FR2583781A1/fr active Pending
-
1986
- 1986-06-17 EP EP86401327A patent/EP0209427A1/fr not_active Ceased
- 1986-06-24 KR KR1019860005037A patent/KR890003514B1/ko not_active Expired
- 1986-06-24 JP JP61148032A patent/JPS61295386A/ja active Granted
- 1986-06-24 CN CN198686104356A patent/CN86104356A/zh active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3915838A (en) * | 1968-04-02 | 1975-10-28 | Ici Ltd | Electrodes for electrochemical processes |
| FR2289632A1 (fr) * | 1974-10-29 | 1976-05-28 | Marston Excelsior Ltd | Procede de realisation d'electrodes pour operations electrolytiques |
| FR2311108A1 (fr) * | 1975-05-12 | 1976-12-10 | Hodogaya Chemical Co Ltd | Cathode activee pour electrolyse |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0298055A1 (en) * | 1987-06-29 | 1989-01-04 | Permelec Electrode Ltd | Cathode for electrolysis and process for producing the same |
| US4900419A (en) * | 1987-06-29 | 1990-02-13 | Permelec Electrode Ltd. | Cathode for electrolysis and process for producing the same |
| FR2775486A1 (fr) * | 1998-03-02 | 1999-09-03 | Atochem Elf Sa | Cathode specifique, utilisable pour la preparation d'un chlorate de metal alcalin et son procede de fabrication |
| WO1999045175A1 (fr) * | 1998-03-02 | 1999-09-10 | Atofina | Cathode specifique, utilisable pour la preparation d'un chlorate de metal alcalin, et son procede de fabrication |
| FR2852973A1 (fr) * | 2003-03-28 | 2004-10-01 | Atofina | Procede de formation d'un revetement d'oxydes metalliques sur un substrat electroconducteur; cathode activee en resultant et son utilisation pour l'electrolyse de solutions acqueuses de chorures de meteaux alcalins. |
| WO2004087992A3 (fr) * | 2003-03-28 | 2005-02-17 | Arkema | Procede de formation d'un revetement d'oxydes metalliques sur un substrat electroconducteur, cathode activee en resultant et son utilisation pour l'electrolyse de solutions aqueuses de chlorures de metaux alcalins. |
| US7790233B2 (en) | 2003-03-28 | 2010-09-07 | Arkema France | Method for the formation of a coating of metal oxides on an electrically-conductive substrate, resultant activated cathode and use thereof for the electrolysis of aqueous solutions of alkaline metal chlorides |
| CN1795291B (zh) * | 2003-03-28 | 2011-08-31 | 阿肯马公司 | 在导电基材上形成金属氧化物涂层的方法,由此得到的活化阴极及其在碱金属氯化物水溶液电解中的应用 |
| RU2505624C2 (ru) * | 2008-01-31 | 2014-01-27 | Касале Кемикэлз С.А. | Катод электролизеров для разложения воды с высокими рабочими характеристиками |
| US20150308004A1 (en) * | 2012-11-29 | 2015-10-29 | Industrie De Nora S.P.A. | Cathode for electrolytic evolution of hydrogen |
| US20220243338A1 (en) * | 2019-06-12 | 2022-08-04 | Olin Corporation | Electrode coating |
Also Published As
| Publication number | Publication date |
|---|---|
| KR890003514B1 (ko) | 1989-09-23 |
| JPS6328998B2 (enrdf_load_stackoverflow) | 1988-06-10 |
| KR870000455A (ko) | 1987-02-18 |
| FR2583781A1 (fr) | 1986-12-26 |
| CN86104356A (zh) | 1986-12-24 |
| JPS61295386A (ja) | 1986-12-26 |
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