GB1186454A - Electrodes for use in Aqueous Alkali Metal Chloride Electrolytes - Google Patents

Electrodes for use in Aqueous Alkali Metal Chloride Electrolytes

Info

Publication number
GB1186454A
GB1186454A GB51219/67A GB5121967A GB1186454A GB 1186454 A GB1186454 A GB 1186454A GB 51219/67 A GB51219/67 A GB 51219/67A GB 5121967 A GB5121967 A GB 5121967A GB 1186454 A GB1186454 A GB 1186454A
Authority
GB
United Kingdom
Prior art keywords
bath
electro
platinum metal
electrodes
anodes
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
Application number
GB51219/67A
Inventor
Denis Lee
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB51219/67A priority Critical patent/GB1186454A/en
Priority to US769400A priority patent/US3578572A/en
Priority to DE19681807149 priority patent/DE1807149A1/en
Priority to FR1594759D priority patent/FR1594759A/fr
Priority to BE723576D priority patent/BE723576A/xx
Priority to NL6815926A priority patent/NL6815926A/xx
Publication of GB1186454A publication Critical patent/GB1186454A/en
Expired 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
    • C25B11/075—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
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00—Electroplating: Baths therefor
    • C25D3/02—Electroplating: Baths therefor from solutions
    • C25D3/50—Electroplating: Baths therefor from solutions of platinum group metals
    • C25D3/52—Electroplating: Baths therefor from solutions of platinum group metals characterised by the organic bath constituents 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)

Abstract

1,186,454. Electrodes for use in aqueous alkali metal chloride electrolytes. IMPERIAL CHEMICAL INDUSTRIES Ltd. Oct.16, 1968 [Nov.10, 1967], No.51219/67. Heading C7B. In the manufacture of an electrode comprising "a titanium support" and an electro-deposited coating of "a platinum metal" thereon, at least the outermost layer of the platinum metal coating is electro-deposited from a plating bath which contains an admixture of an aliphatic polybasic hydroxy acid, e.g. citric acid. "A titanium support" means a support consisting of Ti alone or an alloy based on Ti and having anodic polarization properties similar to those of Ti. Examples of suitable Ti alloys are Ti with Zr, Pt, Rh, Ir, Nb or Ta. "A platinum metal" means Ru, Rh, Pd, Os, Ir, Pt or an alloy of at least two of these metals. The titanium support may be electroplated with a platinum metal from a conventional bath before being electro-plated using the bath containing the admixture. Electrodes produced by the process may be employed as anodes in electrolytic cells wherein Cl 2 , hypochlorites or chlorates are produced by the electrolysis of alkali metal chloride solutions, as anodes in cells for the electro-dialysis of brackish water and as anodes for the cathodic protection of iron and steel structures immersed in sea water. In an example, a sheet of Ti is etched in HC1 and then electroplated with Pt from a bath containing HC1, chloroplatinic acid and citric acid using a current density of 0À3 A/dm<SP>2</SP> and a bath temperature of 70‹C. During plating, the Ti sheet is moved in a circular path within the bath.
GB51219/67A 1967-11-10 1967-11-10 Electrodes for use in Aqueous Alkali Metal Chloride Electrolytes Expired GB1186454A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB51219/67A GB1186454A (en) 1967-11-10 1967-11-10 Electrodes for use in Aqueous Alkali Metal Chloride Electrolytes
US769400A US3578572A (en) 1967-11-10 1968-10-21 Electrodes for use in aqueous alkali metal chloride electrolytes
DE19681807149 DE1807149A1 (en) 1967-11-10 1968-11-05 Electrode for aqueous alkali metal chloride electrolytes
FR1594759D FR1594759A (en) 1967-11-10 1968-11-08
BE723576D BE723576A (en) 1967-11-10 1968-11-08
NL6815926A NL6815926A (en) 1967-11-10 1968-11-08

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB51219/67A GB1186454A (en) 1967-11-10 1967-11-10 Electrodes for use in Aqueous Alkali Metal Chloride Electrolytes

Publications (1)

Publication Number Publication Date
GB1186454A true GB1186454A (en) 1970-04-02

Family

ID=10459097

Family Applications (1)

Application Number Title Priority Date Filing Date
GB51219/67A Expired GB1186454A (en) 1967-11-10 1967-11-10 Electrodes for use in Aqueous Alkali Metal Chloride Electrolytes

Country Status (6)

Country Link
US (1) US3578572A (en)
BE (1) BE723576A (en)
DE (1) DE1807149A1 (en)
FR (1) FR1594759A (en)
GB (1) GB1186454A (en)
NL (1) NL6815926A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4139373A (en) * 1975-11-27 1979-02-13 Johnson, Matthey & Co., Limited Alloys of titanium

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3986942A (en) * 1974-08-02 1976-10-19 Hooker Chemicals & Plastics Corporation Electrolytic process and apparatus
US4032427A (en) * 1975-11-03 1977-06-28 Olin Corporation Porous anode separator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4139373A (en) * 1975-11-27 1979-02-13 Johnson, Matthey & Co., Limited Alloys of titanium

Also Published As

Publication number Publication date
NL6815926A (en) 1969-05-13
US3578572A (en) 1971-05-11
DE1807149A1 (en) 1969-06-12
BE723576A (en) 1969-05-08
FR1594759A (en) 1970-06-08

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees