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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, Yan1,2; Ye, Feng1; Liu, Hui1,3; Yang, Jun1,3
2015-11-18
Source PublicationSCIENTIFIC REPORTS
ISSN2045-2322
Volume5Issue:NOVPages:16219
AbstractMastery 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.
SubtypeArticle
WOS HeadingsScience & Technology
DOI10.1038/srep16219
Indexed BySCI
Language英语
WOS KeywordSHAPE-CONTROLLED SYNTHESIS ; OXYGEN REDUCTION ; NAFION MEMBRANE ; NOBLE-METALS ; CATALYSTS ; CROSSOVER ; ELECTROCATALYSTS ; ELECTROREDUCTION ; NANOCRYSTALS ; ALLOYS
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
Funding OrganizationNational Natural Science Foundation of China(21173226 ; Center for Mesoscience, Institute of Process Engineering, Chinese Academy of Sciences(COM2015A001) ; 21376247 ; 21476246)
WOS IDWOS:000364839300001
Citation statistics
Cited Times:14[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/19823
Collection多相复杂系统国家重点实验室
Affiliation1.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
Recommended Citation
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.
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