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Carbon-supported hollow palladium nanoparticles with enhanced electrocatalytic performance
Alternative TitleRSC Adv.
Chen, Dong1,2; Cui, Penglei1; He, Hongyan1; Liu, Hui1; Ye, Feng1; Yang, Jun1
2015
Source PublicationRSC ADVANCES
ISSN2046-2069
Volume5Issue:15Pages:10944-10950
AbstractCarbon-supported palladium nanoparticles (NPs) with hollow interiors (hPdNPs/C) are fabricated via a facile approach. In this strategy, core-shell NPs with an Ag core and an Ag-Pd alloy shell (Ag@Ag-Pd) are first synthesized in oleylamine by a galvanic replacement reaction between Ag seed particles and Pd2+ ion precursors. Then the core-shell Ag@Ag-Pd NPs are loaded on the XC-72 carbon supports and refluxed in acetic acid to remove the original organic surfactant. The carbon-supported core-shell Ag@Ag-Pd NPs are subsequently agitated in saturated Na2S or NaCl solution for 24 h to eliminate the Ag component from the core and shell regions, leading to the formation of hPdNPs/C. Specifically, the hPdNPs/C generated by NaCl treatment exhibit superior catalytic activity and durability for formic acid oxidation reaction (FAOR) and oxygen reduction reaction (ORR), compared with the commercial Pd/C catalysts from Johnson Matthey, mainly due to the high electrochemically active surface areas (ECSAs) of the hollow structure, whereas the hPdNPs/C obtained by Na2S treatment display very poor catalytic performance due to the serious poisoning induced by S2- adsorption.; Carbon-supported palladium nanoparticles (NPs) with hollow interiors (hPdNPs/C) are fabricated via a facile approach. In this strategy, core-shell NPs with an Ag core and an Ag-Pd alloy shell (Ag@Ag-Pd) are first synthesized in oleylamine by a galvanic replacement reaction between Ag seed particles and Pd2+ ion precursors. Then the core-shell Ag@Ag-Pd NPs are loaded on the XC-72 carbon supports and refluxed in acetic acid to remove the original organic surfactant. The carbon-supported core-shell Ag@Ag-Pd NPs are subsequently agitated in saturated Na2S or NaCl solution for 24 h to eliminate the Ag component from the core and shell regions, leading to the formation of hPdNPs/C. Specifically, the hPdNPs/C generated by NaCl treatment exhibit superior catalytic activity and durability for formic acid oxidation reaction (FAOR) and oxygen reduction reaction (ORR), compared with the commercial Pd/C catalysts from Johnson Matthey, mainly due to the high electrochemically active surface areas (ECSAs) of the hollow structure, whereas the hPdNPs/C obtained by Na2S treatment display very poor catalytic performance due to the serious poisoning induced by S2- adsorption.
KeywordGalvanic Replacement Reaction Pd-ag Alloys Formic-acid Metal Nanoparticles Oxygen Reduction Silver Nanostructures Nanoshells Electrooxidation Nanocrystals
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1039/c4ra14353a
URL查看原文
Indexed BySCI
Language英语
WOS KeywordGALVANIC REPLACEMENT REACTION ; PD-AG ALLOYS ; FORMIC-ACID ; METAL NANOPARTICLES ; OXYGEN REDUCTION ; SILVER ; NANOSTRUCTURES ; NANOSHELLS ; ELECTROOXIDATION ; NANOCRYSTALS
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000348986900010
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/11705
Collection研究所(批量导入)
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,Cui, Penglei,He, Hongyan,et al. Carbon-supported hollow palladium nanoparticles with enhanced electrocatalytic performance[J]. RSC ADVANCES,2015,5(15):10944-10950.
APA Chen, Dong,Cui, Penglei,He, Hongyan,Liu, Hui,Ye, Feng,&Yang, Jun.(2015).Carbon-supported hollow palladium nanoparticles with enhanced electrocatalytic performance.RSC ADVANCES,5(15),10944-10950.
MLA Chen, Dong,et al."Carbon-supported hollow palladium nanoparticles with enhanced electrocatalytic performance".RSC ADVANCES 5.15(2015):10944-10950.
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