Ionic liquid-assisted synthesis of silver nanorods by polyol reduction

Silver nanorods have been successfully synthesized in large scale by the ethylene glycol（EG） reduction in the presence of ionic liquid（IL） 1-butyl-3-methylimidazolium tetrafluoroborate（bmimBF_4） and polyvinyl-pyrrolidone（PVP）.The silver nanorods were characterized by scanning electron microscopy（SEM...

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Bibliographic Details
Published in:Chinese chemical letters 2010-07, Vol.21 (7), p.872-875
Main Authors: Wang, Hong Ying, Gao, Yan An, Zhao, Ming Wei, Zheng, Li Qiang
Format: Article
Language:English
Subjects:
Capping agent
Ethylene glycol
Ionic liquid
Silver nanorods
扫描电子显微镜
离子液体
纳米棒
聚乙烯吡咯烷酮
辅助合成
醇还原
高分辨透射电子显微镜
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Summary:Silver nanorods have been successfully synthesized in large scale by the ethylene glycol（EG） reduction in the presence of ionic liquid（IL） 1-butyl-3-methylimidazolium tetrafluoroborate（bmimBF_4） and polyvinyl-pyrrolidone（PVP）.The silver nanorods were characterized by scanning electron microscopy（SEM）,high-resolution transmission electron microscopy（HRTEM）,transmission electron microscopy（TEM）,electron energy disperse spectroscopy（EDS） and UV-vis spectroscopy.The results showed that the uniform silver nanorods have an average diameter of about 100 nm and the aspect ratio from 15 to 20.IL,bmimBF_4 may play a role of capping agent together with PVP in the formation of silver nanorods.On the other band,bmimBF_4 may accelerate nucleation and improve the stability of the resulting Ag nanorods due to the low interface tension of IL.
ISSN:1001-8417
1878-5964
DOI:10.1016/j.cclet.2010.01.036