Lu Xianmao, Yavuz Mustafa S, Tuan Hsing-Yu, Korgel Brian A, Xia Younan
Department of Biomedical Engineering, Washington University, Saint Louis, Missouri 63130, USA.
J Am Chem Soc. 2008 Jul 16;130(28):8900-1. doi: 10.1021/ja803343m. Epub 2008 Jun 7.
This Communication describes a facile route to the preparation of ultrathin gold nanowires using linear chains formed from [(oleylamine)AuCl] complex via aurophilic interaction. The linear chains, with AuI...AuI bonds as the backbone and surrounded by oleylamines, can group together to form bundles of polymeric strands. When the AuI was reduced to Au0 by reacting with Ag nanoparticles in hexane, the polymeric strands functioned as both the source of Au and the template to mediate the nucleation and growth of Au nanowires. Using this method, we were able to produce Au nanowires with an average diameter of approximately 1.8 nm and an aspect ratio of >1000 in high yields (approximately 70%).
本通讯报道了一种简便的方法，可通过[(油胺)AuCl]配合物通过亲金相互作用形成的线性链来制备超薄金纳米线。以AuI…AuI键为主链并被油胺包围的线性链可以聚集在一起形成聚合物链束。当AuI在己烷中与银纳米颗粒反应还原为Au0时，聚合物链既作为金的来源，又作为模板来介导金纳米线的成核和生长。使用这种方法，我们能够以高产率（约70%）制备平均直径约为1.8 nm且长径比>1000的金纳米线。
