Nanoheterogeneous electrocatalysts fabricated by palladizing of platinumстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:Palladium samples deposited on platinum at constant potentials of 0.02-0.07 V (the reversible hydrogen electrode, the) are studied by measuring potentiodynamic and charging curves. These samples are shown to exhibit an anomalous behavior throughout the whole region of reversibility, namely, the enhanced hydrogen contents in alpha- and beta-phases of palladium hydride and the higher real surface areas. The parameters of the isotherms of the beta-phase formation differ from those observed for usual palladium samples. The model analysis based on the defectiveness concept correlates the anomalously high hydrogen content and unusual isotherm parameters with the concentration of defective lattice regions. (C) 2000 Elsevier Science Ltd. All rights reserved.