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seed-mediated growth method for high-quality noble metal nanocrystals

Science China Chemistry 2012年第11期55卷 2311-2317页

作者： NIU WenXin ZHANG Ling XU GuoBao State Key Laboratory of Electroanalytical Chemistry Changchun Institute of Applied Chemistry Chinese Academy of SciencesChangchun 130022China Graduate University of the Chinese Academy of Sciences Beijing 100039China

This review highlights work from the authors' laboratory on the recent development of seed-mediated growth method for noble metal nanocrystals. The seed-mediated growth method has become one of the most efficient and versatile methods for synthe-sizing high-quality noble metal nanocrystals. The seed-mediated growth method can separate the nucleation and growth stages of metal nanocrystals, and thus provide better control over the size, size distribution, and crystallographic evolution of metal nanocrystals. Because of its high controllability, the seed-mediated growth method is especially promising in providing mechanistic insights into the growth mechanisms of noble metal nanocrystals. In this review, the thermodynamic and kinetic parameters for the nucleation and growth of noble metal nanocrystals are systematically summarized. Mechanistic understanding of these parameters is provided. These studies provide useful guidelines for the rational design and synthesis of novel noble metal nanocrystals with high quality.

关键词： crystal growth nanocrystal noble metal shape control seed-mediated growth method

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seed-mediated growth method for high-quality noble metal nanocrystals

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中国科学:化学 2012年第11期42卷 1646-1646页

作者： NIU WenXin 1,2,ZHANG Ling 1,2 & XU GuoBao 1 1 State Key Laboratory of Electroanalytical Chemistry Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China 2 Graduate University of the Chinese Academy of Sciences,Beijing 100039,China State Key Laboratory of Electroanalytical Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun 130022 China Graduate University of the Chinese Academy of Sciences Beijing 100039 China

This review highlights work from the authors' laboratory on the recent development of seed-mediated growth method for noble metal *** seed-mediated growth method has become one of the most efficient and versatile methods for synthesizing high-quality noble metal *** seed-mediated growth method can separate the nucleation and growth stages of metal nanocrystals,and thus provide better control over the size,size distribution,and crystallographic evolution of metal *** of its high controllability,the seed-mediated growth method is especially promising in providing mechanistic insights into the growth mechanisms of noble metal *** this review,the thermodynamic and kinetic parameters for the nucleation and growth of noble metal nanocrystals are systematically *** understanding of these parameters is *** studies provide useful guidelines for the rational design and synthesis of novel noble metal nanocrystals with high quality.

关键词： crystal growth nanocrystal noble metal shape control seed-mediated growth method

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Preparation of Gold Nanorods of High Quality and High Aspect Ratio

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Journal of Wuhan University of Technology(Materials Science) 2010年第1期25卷 104-107页

作者：李巧玲 BRGI Thomas College of Bioscience and Bioengineering Hebei University of Science and Technology Institut de microtechnique Université de Neuchatel

We report the synthesis of gold nanorods （NRs） by seed-mediated growth method. A small amount of different shapes such as triangles, hexagons and a large amount of rods are obtained by varying the proportion of seed to metal salt, adding NaOH to growth solution as well as using the seed solution of CTAB-capped agent. The gold nanorod （NR） formation yield is improved. Meanwhile, the growth mechanism of high yield gold NRs is discussed. The high quality single size NRs can be separated from polydisperse samples using surfactant-assisted nanorod self-assembly. The gold NRs synthesized were characterized by transmission electron microscopy （TEM） and UV-vis spectroscopy.

关键词： gold nanorods (NRs) seed-mediated growth method transmission electron microscopy (TEM) growth mechanism of gold NRs

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