A novel catalyst Pt/CoAl2O4/Al2O3 for combination CO2 reforming and partial oxidation of CH4

被引：19

作者：

Mo, LY

Zheng, XM

Huang, CJ

Fei, JH

机构：

[1] Zhejiang Univ, Inst Catalysis, Hangzhou 310028, Peoples R China

[2] Huaibei Coal Ind Teachers Coll, Dept Chem, Huaibei 235000, Peoples R China

来源：

CATALYSIS LETTERS | 2002年 / 80卷 / 3-4期

关键词：

combination CO2 reforming and partial oxidation of CH4; synthesis gas; Pt/CoAl2O4/Al2O3; catalyst;

D O I：

10.1023/A:1015416727343

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：

Pt/CoAl2O4/Al2O3, Pt/CoOx/Al2O3, CoAl2O4/Al2O3 and CoOx/Al2O3 catalysts were studied for combination CO2 reforming and partial oxidation of CH4. The results indicate that Pt/CoAl2O4/Al2O3 is the most effective, and XRD results indicate that Pt species are well dispersed over the Pt/CoAl2O4/Al2O3. High dispersion is related to the presence of CoAl2O4, formed during calcining at high temperature before Pt addition. In the presence of Pt, CoAl2O4 in the catalyst could be reduced partially at 973 K. Based on these results, it appears that zerovalent platinum with high dispersion and zerovalent cobalt resulting from CoAl2O4 reduction are responsible for high activity in the Pt/CoAl2O4/Al2O3 catalyst.

引用

页码：165 / 169

页数：5

共 20 条

[1] TEMPERATURE-PROGRAMMED REDUCTION OF COO/AL2O3 CATALYSTS [J].