Effect of adsorption of anions on the kinetics of the copper adatom layer formation at polycrystalline platinum

被引：16

作者：

Danilov, AI ^{[1
]}

Molodkina, EB ^{[1
]}

Polukarov, YM ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Phys Chem, Moscow 117915, Russia

来源：

RUSSIAN JOURNAL OF ELECTROCHEMISTRY | 2000年 / 36卷 / 09期

基金：

俄罗斯基础研究基金会;

关键词：

D O I：

10.1007/BF02757511

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The formation of copper adatom layers at polycrystalline platinum in sulfate and perchlorate solutions is studied by cyclic voltammetry on a ring-disk electrode. Specific adsorption of anions accelerates the copper underpotential deposition by decreasing the positive potential of the dense part of EDL. Of importance is the anion composition of co-adsorption lattices that form at moderate coverages of platinum by copper. Supermonolayer coatings form under the conditions of strong specific adsorption of anions. Tn a weakly acid sodium sulfate solution, the surface coverage by copper adatoms reaches 1.7 monolayers.

引用

页码：976 / 986

页数：11

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