Fabrication of nanoporous Cu-Pt(Pd) core/shell structure by galvanic replacement and its application in electrocatalysis

doi:10.1021/am201057t

QIBEBT-IR > 生物传感技术团队（过去）

	Fabrication of nanoporous Cu-Pt(Pd) core/shell structure by galvanic replacement and its application in electrocatalysis
	Xu, Caixia 1; Liu, Yunqing 1; Wang, Jinping 1; Geng, Haoran 1; Qiu, Huajun 2,3
	2011-12-01
发表期刊	ACS APPLIED MATERIALS & INTERFACES
卷号	3 期号:12 页码:4626-4632
摘要	We describe a general strategy to fabricate a new type of nanoporous core/shell structured bimetallic nanocomposites with controllable metal components. Nanoporous copper (NPC) obtained by dealloying Cu/Al alloy is used as both reducing agent and three-dimensional substrate. Electron microscope and X-ray diffraction characterizations demonstrated that a simply galvanic-replacement reaction with H2PtCl6 aqueous solution can easily generate nanoporous core/shell structure with a thin Pt/Cu alloy shell and Cu (or Pt/Cu alloy) core. The morphology and crystal structure evolution of the nanocomposites are studied and discussed in detail. The as-prepared bimetallic PtCu nanocomposites show greatly enhanced catalytic activity and stability toward methanol electro-oxidation as compared with commercial Pt/C catalyst. This facile in situ preparation strategy is also suitable for large-scale production of this novel and inexpensive catalyst.
文章类型	Article
关键词	Nanoporous Core-shell Methanol Electrocatalyst Fuel Cell
WOS标题词	Science & Technology ; Technology
DOI	10.1021/am201057t
关键词[WOS]	OXYGEN REDUCTION REACTION ; PLATINUM-MONOLAYER SHELL ; METHANOL FUEL-CELLS ; CU CORE-SHELL ; ALLOY NANOPARTICLES ; CATALYTIC-ACTIVITY ; PDCU ALLOY ; GOLD ; STABILITY ; OXIDATION
收录类别	SCI
语种	英语
WOS研究方向	Science & Technology - Other Topics ; Materials Science
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号	WOS:000298341300012
引用统计
文献类型	期刊论文
条目标识符	http://ir.qibebt.ac.cn/handle/337004/6750
专题	生物传感技术团队（过去）
作者单位	1.Univ Jinan, Key Lab Chem Sensing & Anal Univ Shandong, Dept Sch Chem & Chem Engn, Jinan 250022, Peoples R China 2.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China 3.Shandong Univ, Sch Chem & Chem Engn, Jinan 250100, Peoples R China
推荐引用方式 GB/T 7714	Xu, Caixia,Liu, Yunqing,Wang, Jinping,et al. Fabrication of nanoporous Cu-Pt(Pd) core/shell structure by galvanic replacement and its application in electrocatalysis[J]. ACS APPLIED MATERIALS & INTERFACES,2011,3(12):4626-4632.
APA	Xu, Caixia,Liu, Yunqing,Wang, Jinping,Geng, Haoran,&Qiu, Huajun.(2011).Fabrication of nanoporous Cu-Pt(Pd) core/shell structure by galvanic replacement and its application in electrocatalysis.ACS APPLIED MATERIALS & INTERFACES,3(12),4626-4632.
MLA	Xu, Caixia,et al."Fabrication of nanoporous Cu-Pt(Pd) core/shell structure by galvanic replacement and its application in electrocatalysis".ACS APPLIED MATERIALS & INTERFACES 3.12(2011):4626-4632.