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Highly catalytic hollow palladium nanoparticles derived from silver@silver-palladium core-shell nanostructures for the oxidation of formic acid
Alternative TitleJ. Power Sources
Chen, Dong; Cui, Penglei; He, Hongyan; Liu, Hui; Yang, Jun
2014-12-25
Source PublicationJOURNAL OF POWER SOURCES
ISSN0378-7753
Volume272Issue:DECPages:152-159
AbstractHollow Palladium (hPd) nanoparticles (NPs) are prepared via a simple and mild successive method. Firstly, core-shell NPs with silver (Ag) cores and silver-palladium (Ag-Pd) alloy shells are synthesized in aqueous phase by galvanic replacement reaction (GRR) between Ag NPs and Pd2+ ion precursors. Saturated aqueous sodium chloride (NaCl) solution was then employed to remove the Ag component from the core and shell regions of core-shell Ag@Ag-Pd NPs, resulting in the formation of hPd NPs with shrunk sizes in comparison with their core-shell parents. Specifically, the hPd NPs exhibit superior catalytic activity and durability for catalyzing the oxidation of formic acid, compared with the Pd NPs reduced by NaBH4 in aqueous solution and commercial Pd/C catalyst from Johnson Matthey, mainly due to the large electrochemically active surface areas of the hollow particles. In addition, The Ag component in core-shell Ag@Ag-Pd NPs has an unfavorable influence on catalytic activity of NPs for formic acid oxidation. However, the durability could be improved due to the electron donating effect from Ag to Pd atoms in the core-shell NPs. (C) 2014 Elsevier B.V. All rights reserved.; Hollow Palladium (hPd) nanoparticles (NPs) are prepared via a simple and mild successive method. Firstly, core-shell NPs with silver (Ag) cores and silver-palladium (Ag-Pd) alloy shells are synthesized in aqueous phase by galvanic replacement reaction (GRR) between Ag NPs and Pd2+ ion precursors. Saturated aqueous sodium chloride (NaCl) solution was then employed to remove the Ag component from the core and shell regions of core-shell Ag@Ag-Pd NPs, resulting in the formation of hPd NPs with shrunk sizes in comparison with their core-shell parents. Specifically, the hPd NPs exhibit superior catalytic activity and durability for catalyzing the oxidation of formic acid, compared with the Pd NPs reduced by NaBH4 in aqueous solution and commercial Pd/C catalyst from Johnson Matthey, mainly due to the large electrochemically active surface areas of the hollow particles. In addition, The Ag component in core-shell Ag@Ag-Pd NPs has an unfavorable influence on catalytic activity of NPs for formic acid oxidation. However, the durability could be improved due to the electron donating effect from Ag to Pd atoms in the core-shell NPs. (C) 2014 Elsevier B.V. All rights reserved.
KeywordHollow Palladium Nanoparticle Core-shell Galvanic Replacement Reaction Formic Acid Oxidation Catalytic Activity
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1016/j.jpowsour.2014.08.059
URL查看原文
Indexed BySCI
Language英语
WOS KeywordENHANCED RAMAN-SCATTERING ; FUEL-CELLS ; OXYGEN REDUCTION ; PD NANOPARTICLES ; BIMETALLIC NANOPARTICLES ; GALVANIC EXCHANGE ; FACILE SYNTHESIS ; NOBLE-METALS ; CAVITY SIZE ; NANOSPHERES
WOS Research AreaElectrochemistry ; Energy & Fuels
WOS SubjectElectrochemistry ; Energy & Fuels
WOS IDWOS:000344208700019
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/11704
Collection研究所(批量导入)
AffiliationChinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Chen, Dong,Cui, Penglei,He, Hongyan,et al. Highly catalytic hollow palladium nanoparticles derived from silver@silver-palladium core-shell nanostructures for the oxidation of formic acid[J]. JOURNAL OF POWER SOURCES,2014,272(DEC):152-159.
APA Chen, Dong,Cui, Penglei,He, Hongyan,Liu, Hui,&Yang, Jun.(2014).Highly catalytic hollow palladium nanoparticles derived from silver@silver-palladium core-shell nanostructures for the oxidation of formic acid.JOURNAL OF POWER SOURCES,272(DEC),152-159.
MLA Chen, Dong,et al."Highly catalytic hollow palladium nanoparticles derived from silver@silver-palladium core-shell nanostructures for the oxidation of formic acid".JOURNAL OF POWER SOURCES 272.DEC(2014):152-159.
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