Methanol synthesis pathway over Cu/ZrO2 catalysts:: a time-resolved DRIFT 13C-labelling experiment

被引：33

作者：

Ortelli, EE

Weigel, JM

Wokaun, A ^{[1
]}

机构：

[1] Paul Scherrer Inst, CH-5232 Villigen, Switzerland

[2] ETH Zentrum, Swiss Fed Inst Technol, Dept Chem Engn & Ind Chem, CH-8092 Zurich, Switzerland

来源：

CATALYSIS LETTERS | 1998年 / 54卷 / 1-2期

关键词：

methanol synthesis; Cu/ZrO2; DRIFT; C-13-labelling experiments;

D O I：

10.1023/A:1019032022881

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：

To provide additional evidence on the synthesis path of methanol over Cu/ZrO2 catalysts, a three-step in situ experiment was performed in a DRIFT cell. C-13-labelled as well as common C-12 paraformaldehyde and formic acid were adsorbed and subsequently hydrogenated under reaction conditions (0.5 MPa and 423 K). It was found that methanol was generated exclusively from the eta(2)-H2CO intermediate, not from adsorbed surface formate. Furthermore, the intermediacy of CO32- in the reverse/water-gas shift reaction was shown.

引用

页码：41 / 48

页数：8

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