Rh doping effect on coking resistance of Ni/SBA-15 catalysts in dry reforming of methane

被引:1
|
作者
Wen-Jia Cai [1 ]
Lin-Ping Qian [1 ]
Bin Yue [1 ]
He-Yong He [1 ]
机构
[1] Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University
基金
中国国家自然科学基金;
关键词
Methane reforming Carbon dioxide Rh–Ni/SBA-15 Carbon deposition;
D O I
暂无
中图分类号
O643.36 [催化剂];
学科分类号
081705 ;
摘要
A series of SBA-15 supported bimetallic Rh–Ni catalysts with different weight ratio of Rh/Ni in the range of 0–0.04 were prepared for carbon dioxide reforming of methane. The doping effect of Rh on catalytic activity as well as carbon accumulation and removal over the catalysts was studied. The characterization results indicated that the addition of a small amount of Rh promoted the reducibility of Ni particles and decreased the Ni particle size. During the dry reforming reaction, the carbon deposition was originated from CH4 decomposition and CO disproportionation. The Rh–Ni catalyst with small metallic particle size inhibited the carbon formation and exhibited high efficiency in the removal of coke. In comparison with bare Ni-based catalyst, the Rh–Ni bimetallic catalysts showed high activity and stability in the dry reforming of methane.
引用
收藏
页码:1411 / 1415
页数:5
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