supported by the Nature Science Foundation of Hubei Province(2004ABA095,2005ABA025);the Science Foundation of Educational Department of Hubei Province(D200518003)
机构署名：
本校为第一且通讯机构
院系归属：
化学与环境工程学院
摘要：
Monodispersed nanotriangles of gold have been prepared by a simple reaction between HAuCl4·4H2O, KOH and NH2OH·HCl in the presence of gelatin. Gelatin played a decisive role as an inhibitor of the direct reaction of NH2OH with AuCl4- and coagulation of the growing gold in producing the triangle. In the absence of gelatin, we can only obtain irregular large gold particles. The products were characterized by X-ray powder diffraction, transmission electron microscopy and UV-visible absorption spectroscopy.
