CA2658910A1 - Water electrolyser with a weak acid electrolyte - Google Patents

Water electrolyser with a weak acid electrolyte Download PDF

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Publication number
CA2658910A1
CA2658910A1 CA002658910A CA2658910A CA2658910A1 CA 2658910 A1 CA2658910 A1 CA 2658910A1 CA 002658910 A CA002658910 A CA 002658910A CA 2658910 A CA2658910 A CA 2658910A CA 2658910 A1 CA2658910 A1 CA 2658910A1
Authority
CA
Canada
Prior art keywords
electrolysis device
electrolytic solution
acid
cathode compartment
solution contained
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.)
Abandoned
Application number
CA002658910A
Other languages
French (fr)
Inventor
Regine Basseguy
Alain Bergel
Serge Da Silva
Leonardo De Silva Munoz
Damien Feron
Marc Roy
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Institut National Polytechnique de Toulouse INPT
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat A L'energie Atomique - Cea
Institut National Polytechnique De Toulouse - Inpt
Regine Basseguy
Alain Bergel
Serge Da Silva
Leonardo De Silva Munoz
Damien Feron
Marc Roy
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Commissariat A L'energie Atomique - Cea, Institut National Polytechnique De Toulouse - Inpt, Regine Basseguy, Alain Bergel, Serge Da Silva, Leonardo De Silva Munoz, Damien Feron, Marc Roy filed Critical Commissariat A L'energie Atomique - Cea
Publication of CA2658910A1 publication Critical patent/CA2658910A1/en
Abandoned legal-status Critical Current

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
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/02—Hydrogen or oxygen
    • C25B1/04—Hydrogen or oxygen by electrolysis of water
    • 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
    • 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
    • C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • C25B9/70—Assemblies comprising two or more cells
    • C25B9/73—Assemblies comprising two or more cells of the filter-press type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis

Abstract

Electrolysis device intended to produce hydrogen by the reduction of water, comprising a cathode compartment, an anode compartment and an element connecting said compartments and allowing ions to migrate between them, the device being characterized in that the cathode compartment contains at least one weak acid capable of catalysing the reduction and an electrolytic solution, the pH of which is in the range between 3 and 9.

Claims (18)

1. An electrolysis device intended to produce hydrogen by the reduction of water, comprising a cathode compartment, an anode compartment and an element connecting said compartments and allowing ions to migrate between them, said device being characterized in that said cathode compartment contains at least one weak acid and an electrolytic solution, the pH of which is in the range between 3 and 9, and in that it comprises an electrode in contact with said electrolytic solution in the cathode compartment, said electrode being partly or entirely made of at least one material selected from the group consisting of conductive polymers, oxidized or non-oxidized forms of Fe, Cr, Ni or Co.
2. An electrolysis device according to claim 1, characterized in that said electrode is a stainless steel cathode.
3. An electrolysis device according to claim 2, characterized in that said stainless steel is 316L
stainless steel.
4. An electrolysis device according to any one of the preceding claims, characterized in that the pH of the electrolytic solution contained in said cathode compartment is in the range between 4 and 9.
5. An electrolysis device according to claim 4, characterized in that the pH of the electrolytic solution contained in said cathode compartment is in the range between 6 and 9.
6. An electrolysis device according to claim 5, characterized in that the pH of the electrolytic solution contained in said cathode compartment is equal to 8.
7. An electrolysis device according to any one of the preceding claims, characterized in that the pH of the electrolytic solution contained in said anode compartment is substantially the same as that of the electrolytic solution contained in said cathode compartment.
8. An electrolysis device according to any one of claims 1 to 6, characterized in that the pH of the electrolytic solution contained in said anode compartment is basic.
9. An electrolysis device according to claim 8, characterized in that the pH of the electrolytic solution contained in said anode compartment is approximately 15.
10. An electrolysis device according to claim 8 or 9, characterized in that the pH of the electrolytic solution contained in said cathode compartment is approximately 4.
11. An electrolysis device according to any one of the preceding claims, characterized in that said weak acid has a pKa in the range between 3 and 9.
12. An electrolysis device according to claim 11, characterized in that said pKa is in the range between 3 and 5.
13. An electrolysis device according to any of the preceding claims, characterized in that said weak acid is selected so that its pKa is greater by at least one unit than the pH of the electrolytic solution contained in said cathode compartment.
14. An electrolysis device according to any one of the preceding claims, characterized in that said weak acid is selected from the group consisting of orthophosphoric acid, dihydrogen phosphate, monohydrogen phosphate, lactic acid, gluconic acid, acetic acid, monochloroacetic acid, ascorbic acid, hydrogen sulfate, glycolic acid, and amino acids.
15. An electrolysis device according to claim 14, characterized in that said amino acid is leucine or lysine.
16. An electrolysis device according to any one of the preceding claims, characterized in that at least one additional weak acid is added to the electrolytic solution contained in said cathode and/or anode compartment to prevent or restrict the pH variation of said solution or solutions during the reduction of water.
17. An electrolysis device according to claim 16, characterized in that said additional weak acid has the same chemical structure as the weak acid initially contained in said cathode compartment.
18. An electrolysis device according to any one of the preceding claims, characterized in that said cathode compartment is sealed.
CA002658910A 2006-07-25 2007-06-11 Water electrolyser with a weak acid electrolyte Abandoned CA2658910A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0606772 2006-07-25
FR0606772A FR2904330B1 (en) 2006-07-25 2006-07-25 WATER ELECTROLYSIS DEVICE AND USE THEREOF FOR GENERATING HYDROGEN
PCT/FR2007/000949 WO2008012403A2 (en) 2006-07-25 2007-06-11 Water electrolysis device

Publications (1)

Publication Number Publication Date
CA2658910A1 true CA2658910A1 (en) 2008-01-31

Family

ID=37776533

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002658910A Abandoned CA2658910A1 (en) 2006-07-25 2007-06-11 Water electrolyser with a weak acid electrolyte

Country Status (7)

Country Link
US (1) US20090294282A1 (en)
EP (1) EP2047011B1 (en)
AU (1) AU2007279151B2 (en)
CA (1) CA2658910A1 (en)
FR (1) FR2904330B1 (en)
RU (1) RU2413795C2 (en)
WO (1) WO2008012403A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11271233B2 (en) 2013-09-25 2022-03-08 Lockheed Martin Energy, Llc Electrolyte balancing strategies for flow batteries

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX2010014396A (en) * 2008-06-18 2011-06-17 Massachusetts Inst Technology Catalytic materials, electrodes, and systems for water electrolysis and other electrochemical techniques.
FR2940325B1 (en) 2008-12-23 2011-03-04 Toulouse Inst Nat Polytech NOVEL ELECTROCHEMICAL PROCESS FOR THE PRODUCTION OF HYDROGEN AND DEVICE FOR IMPLEMENTING IT
FR2947841B1 (en) 2009-07-08 2012-01-06 Jean-Marc Fleury ENERGY FIELD CONVERSION SYSTEMS INCREASED.
IT1398498B1 (en) * 2009-07-10 2013-03-01 Acta Spa DEVICE FOR THE PRODUCTION ON DEMAND OF HYDROGEN BY MEANS OF ELECTROLYSIS OF WATER SOLUTIONS.
EP2470690A2 (en) * 2009-08-27 2012-07-04 Sun Catalytix Corporation Compositions, electrodes, methods and systems for water electrolysis and other electrochemical techniques
WO2019118450A1 (en) * 2017-12-11 2019-06-20 Arizona Board Of Regents On Behalf Of The University Of Arizona Enhanced water electrolysis with protic co-catalysts
US20210147988A1 (en) * 2018-05-08 2021-05-20 Torvex Energy Limited Electrochemical production of hydrogen from sea water
WO2023111578A2 (en) 2021-12-17 2023-06-22 Brunel University London Electrochemical cell with reduced overpotential
DE102022200687A1 (en) * 2022-01-21 2023-07-27 Siemens Energy Global GmbH & Co. KG Buffer systems to avoid degradation caused by corrosion in PEM water electrolysis

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5760086A (en) * 1980-09-29 1982-04-10 Showa Denko Kk Cathode for electrolyzing water and its manufacture
US4470894A (en) * 1983-08-01 1984-09-11 At&T Bell Laboratories Nickel electrodes for water electrolyzers
US4668349A (en) * 1986-10-24 1987-05-26 The Standard Oil Company Acid promoted electrocatalytic reduction of carbon dioxide by square planar transition metal complexes
DE4000811A1 (en) * 1989-02-16 1990-08-23 Satzinger Gebhard Gmbh Co ELECTROLYT FOR GALVANIC CELLS FOR THE PRODUCTION OF GAS AND ITS USE
IT1248564B (en) * 1991-06-27 1995-01-19 Permelec Spa Nora ELECTROCHEMICAL DECOMPOSITION OF NEUTRAL SALTS WITHOUT HALOGEN OR ACID CO-PRODUCTION AND ELECTROLYSIS CELL SUITABLE FOR ITS REALIZATION.
BR9906021A (en) * 1999-12-30 2001-09-25 Opp Petroquimica S A Cathode for use in electrolytic cells and application thereof
US6869517B2 (en) * 2001-10-22 2005-03-22 Halox Technologies, Inc. Electrolytic process and apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11271233B2 (en) 2013-09-25 2022-03-08 Lockheed Martin Energy, Llc Electrolyte balancing strategies for flow batteries
US11843147B2 (en) 2013-09-25 2023-12-12 Lockheed Martin Energy, Llc Electrolyte balancing strategies for flow batteries

Also Published As

Publication number Publication date
RU2413795C2 (en) 2011-03-10
EP2047011A2 (en) 2009-04-15
WO2008012403A3 (en) 2008-08-07
RU2009106257A (en) 2010-08-27
AU2007279151B2 (en) 2012-08-23
WO2008012403A2 (en) 2008-01-31
FR2904330A1 (en) 2008-02-01
AU2007279151A1 (en) 2008-01-31
FR2904330B1 (en) 2009-01-02
US20090294282A1 (en) 2009-12-03
EP2047011B1 (en) 2020-04-08

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued

Effective date: 20141204