STEAM REFORMING OF METHANOL OVER PD/ZNO - EFFECT OF THE FORMATION OF PDZN ALLOYS UPON THE REACTION

被引：327

作者：

IWASA, N ^{[1
]}

MASUDA, S ^{[1
]}

OGAWA, N ^{[1
]}

TAKEZAWA, N ^{[1
]}

机构：

[1] HOKKAIDO UNIV,DEPT CHEM PROC ENGN,SAPPORO,HOKKAIDO 060,JAPAN

来源：

APPLIED CATALYSIS A-GENERAL | 1995年 / 125卷 / 01期

关键词：

PD/ZNO CATALYST; PDZN ALLOY; STEAM REFORMING OF METHANOL; TEMPERATURE-PROGRAMMED REDUCTION;

D O I：

10.1016/0926-860X(95)00004-6

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：

The catalytic performance of Pd/ZnO for steam reforming of methanol (CH3OH+H2O --> CO2+3H(2)) was greatly improved by previously reducing the catalysts at higher temperatures. The original catalytic functions of metallic palladium were greatly modified as a result of the formation of PdZn alloys. Over the catalysts containing alloys, formaldehyde species formed in the reaction were suggested to be effectively attacked by water, being transformed into carbon dioxide and aa hydrogen. By contrast, the formaldehyde species decomposed selectively to carbon monoxide and hydrogen over catalysts containing metallic palladium.

引用

页码：145 / 157

页数：13