Influence of electronic effect on methane catalytic combustion over PdNi/Al2O3

被引：12

作者：

Pan Xi-qiang ^{[1
,2
]}

Zhang Yi-bo ^{[1
,2
]}

Zhang Bin ^{[1
,2
]}

Miao Zhen-zhen ^{[1
,2
]}

Wu Tian-xiao ^{[1
,2
]}

Yang Xiang-guang ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, Lab Green Chem & Proc, Changchun 130022, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

CHEMICAL RESEARCH IN CHINESE UNIVERSITIES | 2013年 / 29卷 / 05期

基金：

国家高技术研究发展计划(863计划); 中国国家自然科学基金;

关键词：

Methane combustion; Palladium; Nickel; Size effect; Electronic effect; BIMETALLIC PALLADIUM CATALYSTS; COMPLETE OXIDATION; LOW-TEMPERATURE; PD; PD/AL2O3; PERFORMANCE; REACTIVITY; METAL; OXIDE; REDUCTION;

D O I：

10.1007/s40242-013-3135-2

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A series of PdNi/Al2O3 catalysts with different compositions was prepared by co-reduction method. The influence of Ni amount on the catalytic combustion of methane was studied. X-ray diffractometry and X-ray photo-electron spectroscopy were employed to characterize the dispersion and electronic state of the active phase. Temperature-programmed oxidation was carried out to study the thermal stability affected by Ni doping. It has been demonstrated that Ni addition changed particle size and oxidation state of PdO (x) . The results indicate that the promotion of Ni to the Pd/Al2O3 resulted from both size effect and electronic effect. In addition, the thermal stability of the Ni-doped catalysts were enhanced.

引用

页码：952 / 955

页数：4

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