EP0245201B1 - Anode pour l'électrolyse - Google Patents

Anode pour l'électrolyse Download PDF

Info

Publication number
EP0245201B1
EP0245201B1 EP87810254A EP87810254A EP0245201B1 EP 0245201 B1 EP0245201 B1 EP 0245201B1 EP 87810254 A EP87810254 A EP 87810254A EP 87810254 A EP87810254 A EP 87810254A EP 0245201 B1 EP0245201 B1 EP 0245201B1
Authority
EP
European Patent Office
Prior art keywords
substrate
titanium
anode
electrochemically active
active substances
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 - Lifetime
Application number
EP87810254A
Other languages
German (de)
English (en)
Other versions
EP0245201A1 (fr
Inventor
Heiner Dr. Debrodt
Petra Kluger
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.)
Novartis AG
Original Assignee
Ciba Geigy AG
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 Ciba Geigy AG filed Critical Ciba Geigy AG
Publication of EP0245201A1 publication Critical patent/EP0245201A1/fr
Application granted granted Critical
Publication of EP0245201B1 publication Critical patent/EP0245201B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • 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
    • C25B11/02—Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form
    • C25B11/03—Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form perforated or foraminous
    • C25B11/031—Porous electrodes

Definitions

  • the invention relates to an anode for aqueous electrolysis, consisting of a framework which is resistant to the electrolyte and the electrolysis products, a porous substrate containing titanium connected to the framework and electrochemically active substances which are distributed in the pores of the substrate, characterized in that porous titanium-containing substrate is produced from a powder mixture of titanium with nickel or chromium, the proportion of nickel or chromium being 2 to 20% by weight.
  • the passivation rate of various anodes that do not have coatings with electrochemically active substances is measured in 20% sulfuric acid at room temperature and a current density of 0.2 kA / m2. Passivation is indicated by an increase in cell voltage to 10 V.

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)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Secondary Cells (AREA)

Claims (4)

  1. Anode pour électrolyses aqueuses, comprenant une charpente qui résiste aux électrolytes et aux produits de l'électrolyse, un substrat poreux contenant du titane, fixé à la charpente, et des substances électrochimiquement actives réparties dans les pores du substrat, caractérisée en ce que le substrat poreux contenant du titane est préparé à partir d'un mélange pulvérulent de titane et de nickel ou de chrome, la part du nickel ou du chrome étant de 2 à 20 % en poids.
  2. Anode selon la revendication 1, caractérisée en ce que la quantité des éléments dopants est de 2 à 10 % en poids.
  3. Anode selon la revendication 1 ou 2, caractérisée en ce que l'épaisseur du substrat poreux est de 0,2 à 1,0 mm.
  4. Anode selon les revendications 1 à 3, caractérisée en ce que la porosité du substrat est de 20 à 60 %.
EP87810254A 1986-04-25 1987-04-22 Anode pour l'électrolyse Expired - Lifetime EP0245201B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863613997 DE3613997A1 (de) 1986-04-25 1986-04-25 Anode fuer elektrolytische prozesse
DE3613997 1986-04-25

Publications (2)

Publication Number Publication Date
EP0245201A1 EP0245201A1 (fr) 1987-11-11
EP0245201B1 true EP0245201B1 (fr) 1991-05-22

Family

ID=6299502

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87810254A Expired - Lifetime EP0245201B1 (fr) 1986-04-25 1987-04-22 Anode pour l'électrolyse

Country Status (5)

Country Link
US (1) US4849085A (fr)
EP (1) EP0245201B1 (fr)
JP (1) JPS62270790A (fr)
DE (2) DE3613997A1 (fr)
NO (1) NO166496C (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5314601A (en) * 1989-06-30 1994-05-24 Eltech Systems Corporation Electrodes of improved service life
US5324407A (en) * 1989-06-30 1994-06-28 Eltech Systems Corporation Substrate of improved plasma sprayed surface morphology and its use as an electrode in an electrolytic cell
US5879817A (en) * 1994-02-15 1999-03-09 Eltech Systems Corporation Reinforced concrete structure
US5964993A (en) * 1996-12-19 1999-10-12 Implanted Biosystems Inc. Glucose sensor
US5914026A (en) * 1997-01-06 1999-06-22 Implanted Biosystems Inc. Implantable sensor employing an auxiliary electrode
US20030010649A1 (en) * 2001-07-16 2003-01-16 Waite Michael D. Inert anode for electrochemical process
EP1850412A1 (fr) * 2006-04-26 2007-10-31 Technical University of Denmark Un retêvement multicouche

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE338440B (fr) * 1967-08-16 1971-09-06 Contimet Gmbh
DE1812522A1 (de) * 1968-12-04 1970-06-18 Basf Ag Verfahren zur Herstellung von Anoden fuer die Chloralkalielektrolyse
US3926773A (en) * 1970-07-16 1975-12-16 Conradty Fa C Metal anode for electrochemical processes and method of making same
DE2035212C2 (de) * 1970-07-16 1987-11-12 Conradty GmbH & Co Metallelektroden KG, 8505 Röthenbach Metallanode für elektrolytische Prozesse
DE2300422C3 (de) * 1973-01-05 1981-10-15 Hoechst Ag, 6000 Frankfurt Verfahren zur Herstellung einer Elektrode
IT978528B (it) * 1973-01-26 1974-09-20 Oronzio De Nora Impianti Elettrodi metallici e procedimen to per la loro attivazione
DE2305175A1 (de) * 1973-02-02 1974-08-08 Sigri Elektrographit Gmbh Elektrode fuer elektrochemische prozesse
US4013525A (en) * 1973-09-24 1977-03-22 Imperial Chemical Industries Limited Electrolytic cells
US4138510A (en) * 1973-09-27 1979-02-06 Firma C. Conradty Metal anode for electrochemical processing and method of making same
DE2405010C3 (de) * 1974-02-02 1982-08-05 Sigri Elektrographit Gmbh, 8901 Meitingen Sinter-Elektrode für elektrochemische Prozesse und Verfahren zum Herstellen der Elektrode
DD137365A5 (de) * 1976-03-31 1979-08-29 Diamond Shamrock Techn Elektrode
US4140615A (en) * 1977-03-28 1979-02-20 Olin Corporation Cell and process for electrolyzing aqueous solutions using a porous anode separator
JPS5544514A (en) * 1978-09-22 1980-03-28 Permelec Electrode Ltd Electrode for electrolysis and production thereof
DE3106587C2 (de) * 1981-02-21 1987-01-02 Heraeus Elektroden GmbH, 6450 Hanau Elektrode und deren Verwendung
JPS6017834B2 (ja) * 1981-03-11 1985-05-07 昭和電工株式会社 不溶性電極をそなえた電気化学的装置

Also Published As

Publication number Publication date
NO166496C (no) 1991-07-31
EP0245201A1 (fr) 1987-11-11
NO166496B (no) 1991-04-22
JPS62270790A (ja) 1987-11-25
DE3770193D1 (de) 1991-06-27
NO871717L (no) 1987-10-26
DE3613997A1 (de) 1987-10-29
US4849085A (en) 1989-07-18
NO871717D0 (no) 1987-04-24

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