Polyhedral 50-Facet Cu2O Microcrystals Partially Enclosed by {311} High-Index Planes: Synthesis and Enhanced Catalytic CO Oxidation Activity

	Polyhedral 50-Facet Cu2O Microcrystals Partially Enclosed by {311} High-Index Planes: Synthesis and Enhanced Catalytic CO Oxidation Activity
	Leng M ; Liu MZ ; Zhang YB ; Wang ZQ ; Yu C ; Yang XG ; Zhang HJ ; Wang C
刊名	journal of the american chemical society
	2010
卷号	132 期号:48 页码:17084-17087
关键词	GAS SHIFT REACTION METAL NANOCRYSTALS GOLD NANOCRYSTALS CUPROUS-OXIDE SHAPE FACETS WATER EVOLUTION SIZE TEMPERATURE
ISSN号	0002-7863
通讯作者	zhang hj
中文摘要	micro- and nanoparticles with high-index facets may exhibit higher chemical activities that are of great importance in practical applications. cuprite is a potential alternative to expensive noble metals as the catalyst for co oxidation at moderate temperatures. we report here a solution based approach to the preparation of unusual polyhedral 50-facet cu2o microcrystals with a morphological yield higher than 70%. it has been revealed that the concentration of oh- and the volume ratio of polar organic solvent to water in the mixed solvent play crucial roles in controlling the morphology of cu2o microcrystals. the formation of the 50 facets could be geometrically viewed as the truncation of all the 24 vertices of a small rhombicuboctahedron having 26 facets. when growing from solutions, however, the anisotropic growth rates along the 100 , 110 , and 111 directions might be responsible for the formation of this morphology. the miller index of the 24 nearly isosceles trapezoids could be assigned to {311} planes based on geometrical analysis and was verified by simulated models using the winxmorph software and supported by tem and ed observations. compared with other polyhedral cu2o microcrystals, the as-prepared microcrystals showed a higher specific catalytic rate toward co oxidation.
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000285080400011
公开日期	2012-04-25
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/43248]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Leng M,Liu MZ,Zhang YB,et al. Polyhedral 50-Facet Cu2O Microcrystals Partially Enclosed by {311} High-Index Planes: Synthesis and Enhanced Catalytic CO Oxidation Activity[J]. journal of the american chemical society,2010,132(48):17084-17087.
APA	Leng M.,Liu MZ.,Zhang YB.,Wang ZQ.,Yu C.,...&Wang C.(2010).Polyhedral 50-Facet Cu2O Microcrystals Partially Enclosed by {311} High-Index Planes: Synthesis and Enhanced Catalytic CO Oxidation Activity.journal of the american chemical society,132(48),17084-17087.
MLA	Leng M,et al."Polyhedral 50-Facet Cu2O Microcrystals Partially Enclosed by {311} High-Index Planes: Synthesis and Enhanced Catalytic CO Oxidation Activity".journal of the american chemical society 132.48(2010):17084-17087.