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	Bimetallic nanodendrites via selective overgrowth of noble metals on multiply twinned Au seeds
	Feng, Yan1,2; Liu, Hui1,2; Yang, Jun1
刊名	JOURNAL OF MATERIALS CHEMISTRY A
	2014
卷号	2期号:17页码:6130-6137
关键词	reduction electrocatalytic property oxygen-reduction nanocrystals nanoparticles growth silver gold heteronanostructures palladium oxidation
ISSN号	2050-7488
其他题名	J. Mater. Chem. A
中文摘要	Mastery over the morphology of nanomaterials usually enables control of their properties and enhancement of their usefulness for a given application. Herein, we present a general approach, which is based on the preferential nucleation and growth of noble metals on the active twins of Au seed particles, for the fabrication of bimetallic Au-noble metal nanoparticles with dendritic morphologies. This strategy involves the synthesis of multiply twinned Au seeds and the subsequent reduction of other noble metal precursors in oleylamine at elevated temperature. In comparison with commercial Pt/C catalysts, the bimetallic Au-Pt nanodendrites display superior catalytic activity towards methanol oxidation due to the electronic interaction between the Au core and Pt branches in dendritic bimetallic particles and the abundant atomic steps, edges, and corner atoms in the Pt branches. The synthetic universality and mechanistic understanding may provide new opportunities to design and fabricate heterogeneous nanostructures with interesting physicochemical properties.
英文摘要	Mastery over the morphology of nanomaterials usually enables control of their properties and enhancement of their usefulness for a given application. Herein, we present a general approach, which is based on the preferential nucleation and growth of noble metals on the active twins of Au seed particles, for the fabrication of bimetallic Au-noble metal nanoparticles with dendritic morphologies. This strategy involves the synthesis of multiply twinned Au seeds and the subsequent reduction of other noble metal precursors in oleylamine at elevated temperature. In comparison with commercial Pt/C catalysts, the bimetallic Au-Pt nanodendrites display superior catalytic activity towards methanol oxidation due to the electronic interaction between the Au core and Pt branches in dendritic bimetallic particles and the abundant atomic steps, edges, and corner atoms in the Pt branches. The synthetic universality and mechanistic understanding may provide new opportunities to design and fabricate heterogeneous nanostructures with interesting physicochemical properties.
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
研究领域[WOS]	Chemistry ; Energy & Fuels ; Materials Science
关键词[WOS]	REDUCTION ELECTROCATALYTIC PROPERTY ; OXYGEN-REDUCTION ; NANOCRYSTALS ; NANOPARTICLES ; GROWTH ; SILVER ; GOLD ; HETERONANOSTRUCTURES ; PALLADIUM ; OXIDATION
收录类别	SCI
原文出处	://WOS:000333580700022
语种	英语
WOS记录号	WOS:000333580700022
公开日期	2014-05-06
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ipe.ac.cn/handle/122111/8037]
专题	过程工程研究所_研究所（批量导入）
作者单位	1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Feng, Yan,Liu, Hui,Yang, Jun. Bimetallic nanodendrites via selective overgrowth of noble metals on multiply twinned Au seeds[J]. JOURNAL OF MATERIALS CHEMISTRY A,2014,2(17):6130-6137.
APA	Feng, Yan,Liu, Hui,&Yang, Jun.(2014).Bimetallic nanodendrites via selective overgrowth of noble metals on multiply twinned Au seeds.JOURNAL OF MATERIALS CHEMISTRY A,2(17),6130-6137.
MLA	Feng, Yan,et al."Bimetallic nanodendrites via selective overgrowth of noble metals on multiply twinned Au seeds".JOURNAL OF MATERIALS CHEMISTRY A 2.17(2014):6130-6137.

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