Templateless room-temperature assembly of nanowire networks from nanoparticles

被引:91
作者
Ramanath, G [1 ]
D'Arcy-Gall, J
Maddanimath, T
Ellis, AV
Ganesan, PG
Goswami, R
Kumar, A
Vijayamohanan, K
机构
[1] Rensselaer Polytech Inst, Dept Mat Sci & Engn, Troy, NY 12180 USA
[2] Natl Chem Lab, Pune, Maharashtra, India
关键词
D O I
10.1021/la0497649
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We demonstrate a new, room-temperature approach to assemble two-dimensional and three-dimensional networks of gold nanowires by agitating nanoparticles in a toluene-aqueous mixture, without the use of templates. The nanowires have a uniform diameter of about 5 nm and consist of coalesced face-centered cubic nanocrystals. Toluene molecules passivate the gold surfaces during nanoparticle coalescence, rendering the nanowires hydrophobic and enabling their transfer into the toluene layer. Such templateless low-temperature assembly of mesostructures from nanoscale building blocks open up new possibilities for creating porous self-supporting nanocatalysts, nanowires for device interconnection, and low-density high-strength nanofillers for composites.
引用
收藏
页码:5583 / 5587
页数:5
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