Highly catalytic hollow palladium nanoparticles derived from silver@silver-palladium core-shell nanostructures for the oxidation of formic acid

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	Highly catalytic hollow palladium nanoparticles derived from silver@silver-palladium core-shell nanostructures for the oxidation of formic acid
	Chen, Dong; Cui, Penglei; He, Hongyan; Liu, Hui; Yang, Jun
刊名	JOURNAL OF POWER SOURCES
	2014-12-25
卷号	272 期号:DEC 页码:152-159
关键词	Hollow palladium nanoparticle Core-shell Galvanic replacement reaction Formic acid oxidation Catalytic activity
ISSN号	0378-7753
其他题名	J. Power Sources
中文摘要	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.
英文摘要	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.
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Electrochemistry ; Energy & Fuels
研究领域[WOS]	Electrochemistry ; Energy & Fuels
关键词[WOS]	ENHANCED RAMAN-SCATTERING ; FUEL-CELLS ; OXYGEN REDUCTION ; PD NANOPARTICLES ; BIMETALLIC NANOPARTICLES ; GALVANIC EXCHANGE ; FACILE SYNTHESIS ; NOBLE-METALS ; CAVITY SIZE ; NANOSPHERES
收录类别	SCI
原文出处	://WOS:000344208700019
语种	英语
WOS记录号	WOS:000344208700019
公开日期	2015-04-01
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/11704]
专题	过程工程研究所_研究所（批量导入）
作者单位	Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
推荐引用方式 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.