Citation: Kang Xu, Zhi rui Guo, Ning Gu. Facile synthesis of gold nanoplates by thermally reducing AuCl₄^- with aniline[J]. Chinese Chemical Letters, ;2009, 20(2): 241-244. doi: 10.1016/j.cclet.2008.10.053 shu

Facile synthesis of gold nanoplates by thermally reducing AuCl₄^- with aniline

Kang Xu ^a,b,c, ,
Zhi rui Guo ^a,b ,
Ning Gu ^a,b

a State Key Laboratory of Bioelectronics, Southeast University, Nanjing 210096, China;
b Jiangsu Laboratory for Biomaterials and Devices, Southeast University, Nanjing 210096, China;
c School of Chemistry and Chemical engineering, Southeast University, Nanjing 210096, China

Received Date: 19 June 2008

Fund Project: This work was supported by the National Natural Science Foundation of China (Nos. 90406023, 60571031 and 60501009) and the National Important Science Research Program of China (No. 2006CB933206).

We herein report a one-step, wet-chemical approach to synthesizing gold nanoplates in large quantities via the AuCl₄^- thermal reduction process by aniline, without introducing additional capping agent or surfactant. It is found that the reduction kinetics of AuCl₄^- is greatly altered by varying the initial molar ratio of aniline to AuCl₄^-. Moreover, further investigation reveals that the insitu formed polyaniline could serve effectively as a capping agent to preferably adsorb the {111} facets of gold crystals during a slow reduction process, directing the formation of gold nanoplates.
- Gold nanoplates,
- Aniline,
- Shape control
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