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A universal approach to the synthesis of nanodendrites of noble metals
Alternative TitleNanoscale
Feng, Yan1,2; Ma, Xiaohong1; Han, Lin1,3; Peng, Zhijian3; Yang, Jun1
2014-06-07
Source PublicationNANOSCALE
ISSN2040-3364
Volume6Issue:11Pages:6173-6179
AbstractNanomaterials usually exhibit structure-dependent catalytic activity, selectivity, and stability. Herein, we report a universal approach for the synthesis of noble metal nanoparticles with a dendritic structure, which is based on the reduction of metal acetylacetonate precursors in oleylamine at a temperature of 160 degrees C. In this strategy, the metal acetylacetonate precursors are reduced into metal atoms by oleylamine and grow into metal nanoparticles, while oleylamine is simultaneously converted into oleylamide to protect the nanoparticles. The competition between particle aggregation and oleylamide passivation is essential to the formation of a large number of particle aggregates, which eventually grow into nanodendrites via Ostwald ripening process. In particular, in comparison with commercial PtRu/C catalysts, the alloy PtRuOs nanodendrites exhibited superior catalytic activity toward methanol oxidation.; Nanomaterials usually exhibit structure-dependent catalytic activity, selectivity, and stability. Herein, we report a universal approach for the synthesis of noble metal nanoparticles with a dendritic structure, which is based on the reduction of metal acetylacetonate precursors in oleylamine at a temperature of 160 degrees C. In this strategy, the metal acetylacetonate precursors are reduced into metal atoms by oleylamine and grow into metal nanoparticles, while oleylamine is simultaneously converted into oleylamide to protect the nanoparticles. The competition between particle aggregation and oleylamide passivation is essential to the formation of a large number of particle aggregates, which eventually grow into nanodendrites via Ostwald ripening process. In particular, in comparison with commercial PtRu/C catalysts, the alloy PtRuOs nanodendrites exhibited superior catalytic activity toward methanol oxidation.
KeywordReduction Electrocatalytic Property Pd Bimetallic Nanodendrites Ruthenium Ad-atoms Facile Synthesis Oxygen Reduction Single-crystal Nanoparticle Synthesis Silver Nanoparticles Methanol Oxidation Reducing Agent
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1039/c4nr00421c
URL查看原文
Indexed BySCI
Language英语
WOS KeywordREDUCTION ELECTROCATALYTIC PROPERTY ; PD BIMETALLIC NANODENDRITES ; RUTHENIUM AD-ATOMS ; FACILE SYNTHESIS ; OXYGEN REDUCTION ; SINGLE-CRYSTAL ; NANOPARTICLE SYNTHESIS ; SILVER NANOPARTICLES ; METHANOL OXIDATION ; REDUCING AGENT
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS IDWOS:000336883000081
Citation statistics
Cited Times:20[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/10903
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
3.China Univ Geosci, Sch Engn & Technol, Beijing 100083, Peoples R China
Recommended Citation
GB/T 7714
Feng, Yan,Ma, Xiaohong,Han, Lin,et al. A universal approach to the synthesis of nanodendrites of noble metals[J]. NANOSCALE,2014,6(11):6173-6179.
APA Feng, Yan,Ma, Xiaohong,Han, Lin,Peng, Zhijian,&Yang, Jun.(2014).A universal approach to the synthesis of nanodendrites of noble metals.NANOSCALE,6(11),6173-6179.
MLA Feng, Yan,et al."A universal approach to the synthesis of nanodendrites of noble metals".NANOSCALE 6.11(2014):6173-6179.
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