Aspect ratio control of Au nanorods via temperature and hydroxylamine concentration of reaction medium
Aspect ratio control of Au nanorods via temperature and hydroxylamine concentration of reaction medium
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DOI：
10.1016/j.cap.2006.01.022
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发表时间：
2006-08-01
影响因子：
2.4
通讯作者：
Yi, Jongheop
中科院分区：
文献类型：
--
作者：
Kang, Sung Koo;Kim, Younghun;Yi, Jongheop
采用晶种介导法制备了金纳米棒，通过紫外-可见-近红外光谱和透射电子显微镜研究了反应温度和羟胺浓度对金纳米棒长径比和产率的影响。反应温度的升高导致金纳米棒的长径比减小。结果表明，羟胺的加入大大提高了产率。此外，通过控制生长条件，制备了Au/Pt杂化纳米哑铃。讨论了金纳米棒的生长机理与反应温度和反应介质中羟胺浓度的关系。(C)2006 Elsevier B. V.保留所有权利。
Gold nanorods were prepared by the seed-mediated method described by Jana et al. Effects of reaction temperature and hydroxylamine concentration on the aspect ratio and yield of the gold nanorods were investigated by UV-Vis-NIR spectroscopy and transmission electron microscopy. Increase in the reaction temperature led to a decrease in the aspect ratio of the gold nanorods. Results showed that the addition of hydroxylamine drastically improved the yield. In addition, Au/Pt hybrid nanodumbbells were synthesized by controlling the growth conditions. The growth mechanism of the gold nanorods is discussed with respect to the reaction temperature and hydroxylamine concentration of reaction medium. (C) 2006 Elsevier B.V. All rights reserved.