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：
中国国家自然科学基金; 国家高技术研究发展计划(863计划);
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
收藏
页码：952 / 955
页数：4
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