Reconstruction of Rh nanoparticles in methanol oxidation reaction

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
ISSN	2044-4753
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
WOS记录号	WOS:000358237400028
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
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.