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Core-shell Au@Pd nanoparticles with enhanced catalytic activity for oxygen reduction reaction via core-shell Au@Ag/Pd constructions
Chen, Dong1,2; Li, Chengyin1,2; Liu, Hui1; Ye, Feng1; Yang, Jun1
2015-07-06
Source PublicationSCIENTIFIC REPORTS
ISSN2045-2322
Volume5Issue:JULPages:11949
AbstractCore-shell nanoparticles often exhibit improved catalytic properties due to the lattice strain created in these core-shell particles. Herein, we demonstrate the synthesis of core-shell Au@Pd nanoparticles from their core-shell Au@Ag/Pd parents. This strategy begins with the preparation of core-shell Au@Ag nanoparticles in an organic solvent. Then, the pure Ag shells are converted into the shells made of Ag/Pd alloy by galvanic replacement reaction between the Ag shells and Pd2+ precursors. Subsequently, the Ag component is removed from the alloy shell using saturated NaCl solution to form core-shell Au@Pd nanoparticles with an Au core and a Pd shell. In comparison with the core-shell Au@Pd nanoparticles upon directly depositing Pd shell on the Au seeds and commercial Pd/C catalysts, the core-shell Au@Pd nanoparticles via their core-shell Au@Ag/Pd templates display superior activity and durability in catalyzing oxygen reduction reaction, mainly due to the larger lattice tensile effect in Pd shell induced by the Au core and Ag removal.
SubtypeArticle
WOS HeadingsScience & Technology
DOI10.1038/srep11949
Indexed BySCI
Language英语
WOS KeywordFORMIC-ACID OXIDATION ; ALCOHOL FUEL-CELLS ; NOBLE-METALS ; SILVER NANOPARTICLES ; CARBON-MONOXIDE ; ELECTROCATALYSTS ; HYDROGEN ; METHANOL ; ALLOYS ; HOLLOW
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000357377000001
Citation statistics
Cited Times:84[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/19328
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 100049, Peoples R China
Recommended Citation
GB/T 7714
Chen, Dong,Li, Chengyin,Liu, Hui,et al. Core-shell Au@Pd nanoparticles with enhanced catalytic activity for oxygen reduction reaction via core-shell Au@Ag/Pd constructions[J]. SCIENTIFIC REPORTS,2015,5(JUL):11949.
APA Chen, Dong,Li, Chengyin,Liu, Hui,Ye, Feng,&Yang, Jun.(2015).Core-shell Au@Pd nanoparticles with enhanced catalytic activity for oxygen reduction reaction via core-shell Au@Ag/Pd constructions.SCIENTIFIC REPORTS,5(JUL),11949.
MLA Chen, Dong,et al."Core-shell Au@Pd nanoparticles with enhanced catalytic activity for oxygen reduction reaction via core-shell Au@Ag/Pd constructions".SCIENTIFIC REPORTS 5.JUL(2015):11949.
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