NO Adsorption on Ag/Pt(110)-(1×2) Bimetallic Surfaces: Unexpected Formation of Nitrite/nitrate Surface Species
Autor: | Jin-bing Li, Zhiquan Jiang, Weixin Huang |
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Rok vydání: | 2011 |
Předmět: | |
Zdroj: | Chinese Journal of Chemical Physics. 24:735-740 |
ISSN: | 2327-2244 1674-0068 |
Popis: | NO adsorption on Ag/Pt(110)-(1×2) bimetallic surfaces at room temperature was investigated by means of Auger electron spectroscopy, X-ray photoelectron spectroscopy and thermal desorption spectroscopy. An unexpected formation of nitrite/nitrate surface species on Ag/Pt(110)-(1×2) bimetallic surfaces is observed, then decompose at elevated temperatures to form N2. However, such nitrite/nitrate surface species do not form on clean Pt(110) and Ag-Pt alloy surfaces upon NO exposure at room temperature. The formation of nitrite/nitrate surface species on Ag/Pt(110)-(1×2) bimetallic surfaces is attributed to high reactivity of highly coordination-unsaturated Ag clusters and the synergetic effect between Ag clusters and Pt substrate. |
Databáze: | OpenAIRE |
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