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An IR study of methanol adsorption on Pt/CeO2-SiO2 and Pt/CeO2-Al2O3 catalysts

被引：15
作者：
Brogan, MS
Cairns, JA
Dines, TJ
Rochester, CH
机构：
[1] UNIV DUNDEE,DEPT CHEM,DUNDEE DD1 4HN,SCOTLAND
[2] UNIV DUNDEE,DEPT APPL PHYS & ELECT & MFG ENGN,DUNDEE DD1 4HN,SCOTLAND
来源：
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 1997年 / 53卷 / 07期
关键词：
CH3OH; IR spectroscopy; CeO2; carbonate species;
D O I：
10.1016/S1386-1425(97)00042-5
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
The adsorption of CH3OH on Pt/CeO2-Al2O3, Pt/CeO2-SiO2, CeO2-Al2O3 and Pt/CeO2-SiO2 and its subsequent decomposition has been studied by IR spectroscopy. The presence of CeO2, in the supported Pt catalysts causes significant changes in the decomposition of absorbed CH3OH. The initially formed surface methoxy species are transformed at elevated temperatures to absorbed formate and carbonate species on oxide sites and CO adsorbed on Pt sites. (C) 1997 Elsevier Science B.V.
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页码：943 / 950
页数：8
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