Electrocatalysis of anodic oxygen-transfer reactions; Titanium substrates for pure and doped lead dioxide films
- Dept. of Chemistry, Ames Lab., Iowa State Univ., Ames, IA (US)
In this paper, voltammetric and kinetic results are described for the electrocatalytic oxidations of various compounds at doped PbO{sub 2}-film electrodes on Ti substrates. Compounds tested include dimethyl sulfoxide and several thiophene derivatives. Results are emphasized for PbO{sub 2} films doped with Fe{sup III} (Fe-PbO{sub 2}), and with Ag{sup I} and Bi{sup V} (Ag--Bi-PbO{sub 2}), that were electrolytically deposited on Ti substrates with the presence of an interlayer of PbO{sub 2} deposited from acidic solutions of Pb{sup 2+} and NaF. These laminar film electrodes are quite stable and offer significantly improved catalytic activity for various anodic oxygen-transfer reactions in comparison to pure PbO{sub 2}-film electrodes.
- DOE Contract Number:
- W-7405-ENG-82
- OSTI ID:
- 7001040
- Journal Information:
- Journal of the Electrochemical Society; (United States), Journal Name: Journal of the Electrochemical Society; (United States) Vol. 138:11; ISSN JESOA; ISSN 0013-4651
- Country of Publication:
- United States
- Language:
- English
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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400400 -- Electrochemistry
ALLOYS
ANODES
BISMUTH ADDITIONS
BISMUTH ALLOYS
CATALYSTS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
DMSO
DOPED MATERIALS
ELECTROCATALYSTS
ELECTRODES
ELEMENTS
FILMS
HETEROCYCLIC COMPOUNDS
IRON ADDITIONS
IRON ALLOYS
KINETICS
LEAD COMPOUNDS
LEAD OXIDES
MATERIALS
MATERIALS TESTING
METALS
NONMETALS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PHASE STABILITY
REACTION KINETICS
REDOX REACTIONS
SILVER ADDITIONS
SILVER ALLOYS
STABILITY
SUBSTRATES
SULFOXIDES
TESTING
THIN FILMS
THIOPHENE
TITANIUM
TRANSITION ELEMENTS