Electrocatalysis of anodic oxygen transfer reactions; Comparison of structural data with electrocatalytic phenomena for bismuth-doped lead dioxide

Journal Article · Mon May 01 04:00:00 EDT 1989 · Journal of the Electrochemical Society; (USA)

DOI:https://doi.org/10.1149/1.2096929· OSTI ID:5238622

Yeo, I H; Kim, S; Jacobson, R; Johnson, D C ^[1]

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1. Iowa State Univ. of Science and Technology, Ames, IA (USA). Dept. of Chemistry

X-ray structural data, O/sub 2/ evolution overpotentials, and rate constants are compared for anodic oxidation of Mn(II) and 2-thiophene carboxylic acid (2-TCA) at Bi-doped PbO/sub 2/ in 1.0M HClO/sub 4./ It is concluded that the rutile structure of pure {beta}-PbO/sub 2/ deposited anodically from 1.0M HClO/sub 4/ containing Pb(II) is retained even as the Bi(III) content is increased to Bi/Pb ..d.. ca. 0.7, i.e., mole fraction Bi = 0.4. There is no evidence of a new oxide phase being formed. Crystallites of the Bi-PbO/sub 2/ are deposited with an increasing preferential orientation of the 020-plane parallel to the Au substrate surface as the ratio Bi/Pb is increased. The kinetic results are discussed as a function of the enthalpy of transition between the two highest oxide phases for metal oxide electrodes.

• OSTI ID: 5238622
• Journal Information: Journal of the Electrochemical Society; (USA), Journal Name: Journal of the Electrochemical Society; (USA) Vol. 136:5; ISSN 0013-4651; ISSN JESOA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
400400* -- Electrochemistry
ALLOYS
ANODES
BISMUTH ADDITIONS
BISMUTH ALLOYS
CARBOXYLIC ACIDS
CATALYSTS
CHALCOGENIDES
CHEMICAL REACTIONS
CHLORATES
CHLORINE COMPOUNDS
DOPED MATERIALS
ELECTRIC BATTERIES
ELECTROCATALYSTS
ELECTROCHEMICAL CELLS
ELECTRODES
ELEMENTS
ENTHALPY
GOLD
HALOGEN COMPOUNDS
HETEROCYCLIC COMPOUNDS
LEAD COMPOUNDS
LEAD OXIDES
MANGANESE
MATERIALS
METAL-METAL OXIDE BATTERIES
METALS
NONMETALS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXIDATION
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PHASE STUDIES
PHYSICAL PROPERTIES
SUBSTRATES
THERMODYNAMIC PROPERTIES
THIOPHENE
TRANSITION ELEMENTS