Size Effect in Silver Oxidation By Nitrogen Dioxide

被引:9
|
作者
Kalinkin, A. V. [1 ]
Smirnov, M. Yu. [1 ]
Klembovskii, I. O. [2 ]
Sorokin, A. M. [1 ]
Gladky, A. Yu. [1 ]
Bukhtiyarov, V. I. [1 ,2 ]
机构
[1] Russian Acad Sci, Boreskov Inst Catalysis, Siberian Branch, Novosibirsk, Russia
[2] Novosibirsk State Univ, Novosibirsk, Russia
关键词
silver; XPS; STM; NO2; size effect; CATALYSTS; REDUCTION; OXIDE; XPS;
D O I
10.1134/S0022476618070284
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
X-ray photoelectron spectroscopy is applied to study at room temperature and pressure of 10(-5) Torr the interaction of NO2 with a model sample obtained by thermal deposition of silver on the graphite surface. Scanning tunneling microscopy shows that in this case, silver particles with a size of D = 4-11 nm are formed on the surface. For comparison, polycrystalline silver foil is studied under similar conditions. It is found that such a treatment leads to silver oxidation in the Ag/C sample while the foil remains unchanged under these conditions.
引用
收藏
页码:1726 / 1729
页数:4
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