ATE350513T1 - ACTIVATION OF A CATHODE - Google Patents

ACTIVATION OF A CATHODE

Info

Publication number
ATE350513T1
ATE350513T1 AT01944058T AT01944058T ATE350513T1 AT E350513 T1 ATE350513 T1 AT E350513T1 AT 01944058 T AT01944058 T AT 01944058T AT 01944058 T AT01944058 T AT 01944058T AT E350513 T1 ATE350513 T1 AT E350513T1
Authority
AT
Austria
Prior art keywords
cathode
electrocatalytic
cleaned
coated
metal ions
Prior art date
Application number
AT01944058T
Other languages
German (de)
Inventor
Lars-Erik Bergman
Erik Zimmerman
Tomas Widenfalk
Bernd Busse
Original Assignee
Akzo Nobel Nv
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 Akzo Nobel Nv filed Critical Akzo Nobel Nv
Application granted granted Critical
Publication of ATE350513T1 publication Critical patent/ATE350513T1/en

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
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/31—Coating with metals
    • C23C18/42—Coating with noble metals
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrochemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electrodes For Compound Or Non-Metal Manufacture (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Cold Cathode And The Manufacture (AREA)
  • Gas-Filled Discharge Tubes (AREA)
  • Solid Thermionic Cathode (AREA)
  • Secondary Cells (AREA)
  • Chemically Coating (AREA)

Abstract

The present invention relates to a method for activation of a cathode comprising at least a cathode substrate wherein the cathode is cleaned by means of an acid,the cleaned cathode is coated with at least one electrocatalytic coating solution, drying the coated cathode until it is at least substantially dry, and thereafter contacting the cathode with a solvent redissolving precipitated electrocatalytic salts or acids formed on the cathode, originating from the electrocatalytic solution, to form dissolved electrocatalytic metal ions on the cathode surface, so that said electrocatalytic metal ions can precipitate as metals on the cathode. The invention also comprises a cathode obtainable by the method and the use of an activated cathode in an electrolytic cell for producing chlorine and alkali hydroxide.
AT01944058T 2000-07-06 2001-06-25 ACTIVATION OF A CATHODE ATE350513T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US21649100P 2000-07-06 2000-07-06
EP00850124 2000-07-06

Publications (1)

Publication Number Publication Date
ATE350513T1 true ATE350513T1 (en) 2007-01-15

Family

ID=27741095

Family Applications (1)

Application Number Title Priority Date Filing Date
AT01944058T ATE350513T1 (en) 2000-07-06 2001-06-25 ACTIVATION OF A CATHODE

Country Status (11)

Country Link
EP (1) EP1297200B1 (en)
JP (1) JP3867913B2 (en)
KR (1) KR100546928B1 (en)
CN (1) CN1242099C (en)
AT (1) ATE350513T1 (en)
AU (2) AU2001266502B2 (en)
BR (1) BR0112203B1 (en)
CA (1) CA2415020C (en)
DE (1) DE60125763T2 (en)
WO (1) WO2002002847A1 (en)
ZA (1) ZA200300111B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4771467B2 (en) * 2005-11-17 2011-09-14 東亞合成株式会社 Method for producing high purity alkali metal hydroxide
EP1939182A1 (en) * 2006-12-22 2008-07-02 Speedel Experimenta AG Process for the preparation of (R or S)-2-Alkyl-3-heterocyclyl-1-propanols
US8349165B2 (en) 2008-11-25 2013-01-08 Tokuyama Corporation Process for producing an active cathode for electrolysis
US20190106797A1 (en) * 2016-03-31 2019-04-11 Siemens Aktiengesellschaft In-Situ Anode Activation By A Cathode In An Alkaline Water Electrolytic Cell
JP6672211B2 (en) 2017-03-21 2020-03-25 株式会社東芝 Carbon dioxide electrolysis apparatus and carbon dioxide electrolysis method
EP3887577B1 (en) 2018-11-30 2022-12-07 Sedo Engineering SA By-products (impurity) removal
US11753730B2 (en) 2018-11-30 2023-09-12 Sedo Engineering Sa Leucodye (such as leucoindigo) as dispersing aid

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2074190B (en) * 1980-04-22 1984-03-14 Johnson Matthey Co Ltd Electrode
US5476688A (en) * 1988-08-29 1995-12-19 Ostolski; Marian J. Process for the preparation of noble metal coated non-noble metal substrates, coated materials produced in accordance therewith and compositions utilizing the coated materials
US5035789A (en) * 1990-05-29 1991-07-30 The Dow Chemical Company Electrocatalytic cathodes and methods of preparation

Also Published As

Publication number Publication date
DE60125763D1 (en) 2007-02-15
DE60125763T2 (en) 2007-10-18
CN1242099C (en) 2006-02-15
KR20030013453A (en) 2003-02-14
JP3867913B2 (en) 2007-01-17
WO2002002847A1 (en) 2002-01-10
CA2415020A1 (en) 2002-01-10
ZA200300111B (en) 2004-01-21
EP1297200A1 (en) 2003-04-02
JP2004502035A (en) 2004-01-22
BR0112203A (en) 2003-05-13
KR100546928B1 (en) 2006-01-26
BR0112203B1 (en) 2012-05-15
AU2001266502B2 (en) 2004-05-20
CA2415020C (en) 2008-06-10
AU6650201A (en) 2002-01-14
CN1440467A (en) 2003-09-03
EP1297200B1 (en) 2007-01-03

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