Enhancing the methanol tolerance of platinum nanoparticles for the cathode reaction of direct methanol fuel cells through a geometric design

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	Enhancing the methanol tolerance of platinum nanoparticles for the cathode reaction of direct methanol fuel cells through a geometric design
	Feng, Yan 1,2; Ye, Feng 1; Liu, Hui 1,3; Yang, Jun 1,3
刊名	SCIENTIFIC REPORTS
	2015-11-18
卷号	5 期号:NOV 页码:16219
ISSN号	2045-2322
英文摘要	Mastery over the structure of nanoparticles might be an effective way to enhance their performance for a given application. Herein we demonstrate the design of cage-bell nanostructures to enhance the methanol tolerance of platinum (Pt) nanoparticles while remaining their catalytic activity for oxygen reduction reaction. This strategy starts with the synthesis of core-shell-shell nanoparticles with Pt and silver (Ag) residing respectively in the core and inner shell regions, which are then agitated with saturated sodium chloride (NaCl) solution to eliminate the Ag component from the inner shell region, leading to the formation of bimetallic nanoparticles with a cage-bell structure, defined as a movable Pt core enclosed by a metal shell with nano-channels, which exhibit superior methanoltolerant property in catalyzing oxygen reduction reaction due to the different diffusion behaviour of methanol and oxygen in the porous metal shell of cage-bell structured nanoparticles. In particular, the use of remarkably inexpensive chemical agent (NaCl) to promote the formation of cage-bell structured particles containing a wide spectrum of metal shells highlights its engineering merit to produce highly selective electrocatalysts on a large scale for the cathode reaction of direct methanol fuel cells.
WOS标题词	Science & Technology
类目[WOS]	Multidisciplinary Sciences
研究领域[WOS]	Science & Technology - Other Topics
关键词[WOS]	SHAPE-CONTROLLED SYNTHESIS ; OXYGEN REDUCTION ; NAFION MEMBRANE ; NOBLE-METALS ; CATALYSTS ; CROSSOVER ; ELECTROCATALYSTS ; ELECTROREDUCTION ; NANOCRYSTALS ; ALLOYS
收录类别	SCI
语种	英语
WOS记录号	WOS:000364839300001
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/19823]
专题	过程工程研究所_多相复杂系统国家重点实验室
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 100190, Peoples R China 3.Chinese Acad Sci, Inst Proc Engn, Ctr Mesosci, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Feng, Yan,Ye, Feng,Liu, Hui,et al. Enhancing the methanol tolerance of platinum nanoparticles for the cathode reaction of direct methanol fuel cells through a geometric design[J]. SCIENTIFIC REPORTS,2015,5(NOV):16219.
APA	Feng, Yan,Ye, Feng,Liu, Hui,&Yang, Jun.(2015).Enhancing the methanol tolerance of platinum nanoparticles for the cathode reaction of direct methanol fuel cells through a geometric design.SCIENTIFIC REPORTS,5(NOV),16219.
MLA	Feng, Yan,et al."Enhancing the methanol tolerance of platinum nanoparticles for the cathode reaction of direct methanol fuel cells through a geometric design".SCIENTIFIC REPORTS 5.NOV(2015):16219.