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Electrochemical generation of oxygen. 1: The effects of anions and cations on hydrogen chemisorption and anodic oxide film formation on platinum electrode. 2: The effects of anions and cations on oxygen generation on platinum electrode

机译：电化学产生氧气。 1：阴离子和阳离子对铂电极上氢化学吸附和阳极氧化膜形成的影响。 2：阴离子和阳离子对铂电极上氧气产生的影响

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The effects were studied of anions and cations on hydrogen chemisorption and anodic oxide film formation on Pt by linear sweep voltammetry, and on oxygen generation on Pt by potentiostatic overpotential measurement. The hydrogen chemisorption and anodic oxide film formation regions are greatly influenced by anion adsorption. In acids, the strongly bound hydrogen occurs at more cathodic potential when chloride and sulfate are present. Sulfate affects the initial phase of oxide film formation by produced fine structure while chloride retards the oxide-film formation. In alkaline solutions, both strongly and weakly bound hydrogen are influenced by iodide, cyanide, and barium and calcium cations. These ions also influence the oxide film formation. Factors considered to explain these effects are discussed. The Tafel slope for oxygen generation was found to be independent on the oxide thickness and the presence of cations or anions. The catalytic activity indicated by the exchange current density was observed decreasing with increasing oxide layer thickness, only a minor dependence on the addition of certain cations and anions was found.

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作者
Huang, C. J.; Yeager, E.; Ogrady, W. E.;
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年度 1975
页码 1-124
总页数 124
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
ANIONS; CATIONS; ELECTROCHEMISTRY; ELECTRODES; OXIDE FILMS; OXYGEN; PLATINUM; CATALYTIC ACTIVITY; CHARGE TRANSFER; CHEMISORPTION; ELECTRON TUNNELING; FILM THICKNESS; HYDROGEN EMBRITTLEMENT;

机译：阴离子;阳离子;电化学;电极，氧化膜;氧;铂;催化活性;收费转移;化学吸附;电子隧道;电影厚度;氢气脆弱;

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Electrochemical generation of oxygen. 1: The effects of anions and cations on hydrogen chemisorption and anodic oxide film formation on platinum electrode. 2: The effects of anions and cations on oxygen generation on platinum electrode

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