Selective Synthesis of Hexagonal Ag Nanoplates in a Solution-Phase Chemical Reduction Process

查看全文 作　　者：Mingzhu [1,2]Liu;Mei [1,2]Leng;Chao [1,2]Yu;Xin [3]Wang;Cheng [1]Wang

机构地区：[1]State Key Laboratory of Rare Earth Resource Utilization,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun,130022,China;[2]Graduate School of the Chinese Academy of Sciences,Beijing,100049,China;[3]Division of Chemical and Biomolecular Engineering,Nanyang Technological University,637722,Singapore

出　　处：《Nano Research》索引2010年第3卷第12期,共9页

基　　金：This work is supported by the National Basic Research Program of China(No.2007CB925101);the National Natural Science Foundation of China(NSFC)Fund for Creative Research Groups(No.20921002). 摘　　要：Two-dimensional(2-D)Ag nanoplates have surface plasmon resonances which can be tuned from the visible to the near-IR by varying the size and morphology of the nanoplates.Due to their anisotropic structures and different surface energy distributions,Ag nanoplates-especially triangular ones-are kinetically stable and can transform into other nanostructures.Taking advantage of the synergetic effects of HNO_(3)and Cl-in the reduction solution,uniform Ag hexagonal nanoplates(HNPs)have been captured during the transformation of Ag triangular nanoplates(TNPs).The dimensions of the Ag HNPs can be controlled by changing the concentrations of reagents in the reaction or/and reduction solutions.Resonance absorption spectra of the obtained Ag HNPs indicated that their in-plane resonance peaks could be tuned from the visible to the near-IR region,showing their potential applications in medical diagnosis. 关键词：Synthesis Ag hexagonal nanoplates etching effect TRANSFORMATION

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Selective Synthesis of Hexagonal Ag Nanoplates in a Solution-Phase Chemical Reduction Process

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