Temperature-programmed desorption studies of methanol and formic acid decomposition on copper oxide surfaces

被引：42

作者：

Poulston, S ^{[1
]}

Rowbotham, E ^{[1
]}

Stone, P ^{[1
]}

Parlett, P ^{[1
]}

Bowker, M ^{[1
]}

机构：

[1] Univ Reading, Dept Chem, Reading RG6 6AD, Berks, England

来源：

CATALYSIS LETTERS | 1998年 / 52卷 / 1-2期

关键词：

copper; copper oxide; methanol; formic acid;

D O I：

10.1023/A:1019007100649

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We have obtained temperature-programmed desorption data for methanol and formic acid adsorption on bulk powders of CuO and Cu2O. Methanol adsorption on CuO at 300 K results in CO2, H-2 and H2O desorption at 550 K indicating formate decomposition; this decomposition temperature is very close to that obtained from the decomposition bf formate produced by formic acid adsorption. No significant desorption was observed from vacuum-annealed Cu2O following exposure to methanol due to the formation of a copper metal film at the surface. However, formic acid was adsorbed on this surface decomposing at significantly lower temperature, 485 K, than on CuO.

引用

页码：63 / 67

页数：5

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