Controlled synthesis of concave Cu2O microcrystals enclosed by {hhl} high-index facets and enhanced catalytic activity

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	Controlled synthesis of concave Cu2O microcrystals enclosed by {hhl} high-index facets and enhanced catalytic activity
	Wang, Xue ; Liu, Chang ; Zheng, Binjie ; Jiang, Yaqi ; Jiang YQ(蒋亚琪) ; Zhang, Lei ; Xie, Zhaoxiong ; Xie ZX(谢兆雄) ; Zheng, Lansun ; Zheng LS(郑兰荪)
刊名	http://dx.doi.org/10.1039/c2ta00241h
	2013
关键词	COMPARATIVE PHOTOCATALYTIC ACTIVITY GAS-SENSING PROPERTIES ELECTROCATALYTIC ACTIVITIES PLATINUM NANOCRYSTALS SELECTIVE SYNTHESIS VISIBLE-LIGHT SURFACES OXIDATION NANOPARTICLES TEMPERATURE
英文摘要	Due to the fact that crystal facets with high surface energy usually exhibit superior performance in many fields, such as catalysis, the importance of the synthesis of micro/nano-crystals with exposed high surface energy facets is becoming a hot research field. In this article, concave Cu2O microcrystals mainly enclosed by {hhl} high-index facets have been successfully prepared by reducing Cu(CH3COO)(2) with glucose in the presence of sodium dodecyl sulphate (SDS). SDS was proved to be important in the formation of the concave Cu2O microcrystals. The concave degree of truncated octahedra can be controlled by adjusting the concentration of SDS. In addition, we found the reaction rate also affected the morphology of Cu2O microcrystals. Octahedron-based branched particles, truncated concave octahedra and truncated octahedra can be obtained by adjusting the concentration of glucose. In the catalytic oxidation of CO, truncated concave octahedral Cu2O enclosed by {332} high-index facets exhibited the highest catalytic activity among the high-index {332} facets, low index {111} and {100} facets, due to the existence of high density steps on {332} facets and the CO catalytic activities of the crystal facets are in the sequence: {332} > {111} > {100}.
语种	英语
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/63817]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Wang, Xue,Liu, Chang,Zheng, Binjie,et al. Controlled synthesis of concave Cu2O microcrystals enclosed by {hhl} high-index facets and enhanced catalytic activity[J]. http://dx.doi.org/10.1039/c2ta00241h,2013.
APA	Wang, Xue.,Liu, Chang.,Zheng, Binjie.,Jiang, Yaqi.,蒋亚琪.,...&郑兰荪.(2013).Controlled synthesis of concave Cu2O microcrystals enclosed by {hhl} high-index facets and enhanced catalytic activity.http://dx.doi.org/10.1039/c2ta00241h.
MLA	Wang, Xue,et al."Controlled synthesis of concave Cu2O microcrystals enclosed by {hhl} high-index facets and enhanced catalytic activity".http://dx.doi.org/10.1039/c2ta00241h (2013).