Electrodeposition of hedgehog-shaped gold crystallites on TiO2 surface and their behavior in anodic oxidation of oxalic acid

被引:19
作者
Haber, J [1 ]
Nowak, P [1 ]
Zurek, P [1 ]
机构
[1] Polish Acad Sci, Inst Catalysis & Surface Chem, Ul Niezapominajek 8, PL-30239 Krakow, Poland
关键词
D O I
10.1021/la020793y
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Gold may be deposited electrochemically at the surface of a TiO2covered Ti electrode, forming at the surface hedgehog-shaped crystallites of well developed surface area. Doping of the TiO2 layer by vanadium facilitates the gold electodeposition, resulting in more uniform and denser distribution of crystallities. At the same time, gold electrodeposition on vanadium doped TiO2 occurs at lower overpotential in comparison with that of the undoped TiO2 layer.
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收藏
页码:196 / 199
页数:4
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