IMR OpenIR
Reconstruction of Rh nanoparticles in methanol oxidation reaction
Wu, Zhaoxuan; Chen, Wenlong; Liu, Hongyang; Zhai, Peng; Xiao, Chaoxian; Su, Dangsheng; Liu, Haichao; Ma, Ding; hcliu@pku.edu.cn; dma@pku.edu.cn
2015
发表期刊CATALYSIS SCIENCE & TECHNOLOGY
ISSN2044-4753
卷号5期号:8页码:4116-4122
摘要We have developed a new method based on both kinetic and thermodynamic control to tune the dimensions of Rh nanocubes (varied from 2 nm to 6 nm) and obtained Rh concaves (>10 nm). The prepared Rh nanocubes were loaded on SiO2 as catalysts for the partial oxidation of methanol. Our results showed that the reaction has an induction period, and the catalyst activity changes with the time on stream, implying the possible change in active sites of the catalysts. A number of characterization methods were used to systematically investigate the catalysts before and after the reaction. It is concluded that the reconstruction of the catalyst surface occurred under reaction atmosphere and the increase in catalytic performance was due to the formation of highly active crystal planes and sites. Our results indicate that facet transformation exists in heterogeneous catalysis reactions, which accounts for some unexpected activity evolution during the reaction.
部门归属[wu, zhaoxuan ; chen, wenlong ; zhai, peng ; xiao, chaoxian ; liu, haichao ; ma, ding] peking univ, coll chem & mol engn, beijing natl lab mol sci, beijing 100871, peoples r china ; [liu, hongyang ; su, dangsheng] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china
资助者National Natural Science Foundation of China [21173009]; 973 projects [2011CB201402, 2013CB933100]
收录类别sci
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/75091
专题中国科学院金属研究所
通讯作者hcliu@pku.edu.cn; dma@pku.edu.cn
推荐引用方式
GB/T 7714
Wu, Zhaoxuan,Chen, Wenlong,Liu, Hongyang,et al. Reconstruction of Rh nanoparticles in methanol oxidation reaction[J]. CATALYSIS SCIENCE & TECHNOLOGY,2015,5(8):4116-4122.
APA Wu, Zhaoxuan.,Chen, Wenlong.,Liu, Hongyang.,Zhai, Peng.,Xiao, Chaoxian.,...&dma@pku.edu.cn.(2015).Reconstruction of Rh nanoparticles in methanol oxidation reaction.CATALYSIS SCIENCE & TECHNOLOGY,5(8),4116-4122.
MLA Wu, Zhaoxuan,et al."Reconstruction of Rh nanoparticles in methanol oxidation reaction".CATALYSIS SCIENCE & TECHNOLOGY 5.8(2015):4116-4122.
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