Study of Adsorption and Interaction of H2, O2, and CO on the Surface of Single Gold Nanoparticles and Nickel by Scanning Tunneling Microscopy

被引：5
|
作者：
Grishin M.V. [1 ]
Gatin A.K. [1 ]
Sarvadii S.Y. [1 ]
Shub B.R. [1 ]
机构：
[1] Semenov Institute of Chemical Physics, Russian Academy of Sciences, Moscow
来源：
Nanotechnologies in Russia | 2017年 / 12卷 / 11-12期
基金：
俄罗斯基础研究基金会;
关键词：
D O I：
10.1134/S1995078017060040
中图分类号：
学科分类号：
摘要：
Using scanning tunneling microscopy, we have studied the processes of adsorption and interaction of hydrogen, oxygen, and carbon monoxide on the surface of gold nanoparticles and nickel that form singleand bicomponent coatings on graphite. On the gold nanoparticles, the interaction of H2 and CO results in the formation of formyl radicals (HCO•) that get adsorbed on the substrate and are able then to oxidize with oxygen to water and CO2. Nickel nanoparticles coated with an oxide are reduced after sequential exposure to hydrogen and CO. As is established, on a bicomponent gold–nickel coating, the interaction of hydrogen and carbon monoxide also leads to the formation of adsorbed formyl radicals. © 2017, Pleiades Publishing, Ltd.
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收藏
页码：589 / 596
页数：7
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