Oxidation of a platinum foil with nitrogen dioxide

被引：0
|
作者：
A. V. Kalinkin
M. Yu. Smirnov
V. I. Bukhtiyarov
机构：
[1] Russian Academy of Sciences,Boreskov Institute of Catalysis, Siberian Branch
来源：
Kinetics and Catalysis | 2016年 / 57卷
关键词：
platinum; oxidation; NO; PtO; Pt; O; XPS;
D O I：
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中图分类号：
学科分类号：
摘要：
The oxidation of a polycrystalline platinum foil by nitrogen dioxide at an NO2 pressures of 10–6–10–4 mbar and a temperature of 525 K has been investigated by X-ray photoelectron spectroscopy (XPS). Under these conditions, the platinum oxides PtO and Pt3O4 form on the foil surface. A comparison between the data obtained in this study and the data on the oxidation of platinum nanoparticles suggests a hypothesis as to the causes of the size effect in the oxidation of NO over platinum catalysts.
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页码：826 / 830
页数：4
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