In situ infrared study of photoreaction of ethanol on Au and Ag/TiO2

Azadeh Rismanchian, Yu Wen Chen, Steven S.C. Chuang

研究成果: 雜誌貢獻期刊論文同行評審

35 引文 斯高帕斯(Scopus)

摘要

An in situ IR technique was used to study the role of Au and Ag additives on photocatalytic reaction of ethanol on TiO2 at 300 K. Au and Ag additives increased water/ethanol coverage and decreased the rate of ethanol's C-H scission, a step involving in scavenging photogenerated holes. Au and Ag promoted adsorption of ethanol as monodentate ethoxy, accelerated its conversion to formate (HCOO-ad) and acetate (CH3COO-ad). In contrast, adsorbed ethanol on TiO2 did not produce IR-observable products and exhibited a Stark effect with a decreased C-H intensity upon accumulation of photogenerated electrons.

原文???core.languages.en_GB???
頁(從 - 到)16-22
頁數7
期刊Catalysis Today
264
DOIs
出版狀態已出版 - 15 4月 2016

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