Facile synthesis of Au@SiO2 core–shell nanoparticles with multiple Au nanodots by a reverse microemulsion (water-in-oil) method》.pdf

Colloids and Surfaces A: Physicochem. Eng. Aspects 486 (2015) 14–20 Contents lists available at ScienceDirect Colloids and Surfaces A: Physicochemical and Engineering Aspects j o u r na l h o m e p a g e : w w w. elsev /locate/cols urfa Facile synthesis of Au@SiO2 core–shell nanoparticles with multiple Au nanodots by a reverse microemulsion (water-in-oil) method Yingjie Ren a , Yonghong Zhao a,∗∗ , Yongjie Zhang a , Weiyue Tang a , Xia Xin b,c,∗ , Jinglin Shen c , Lin Wang c a China Research Institute of Daily Chemical Industry, Taiyuan, Shanxi 030001, PR China b National Engineering Technology Research Centerfor Colloidal Materials, Shandong University,Jinan 250100, PR China c Key Laboratory of Colloid and Interface Chemistry (Shandong University), Ministry of Education, Jinan 250100, PR China h i g h l i g h t s g r a p h i c a l a b s t r a c t • The Au@SiO2 nanoparticles were Schematic illustration of the formation mechanism of Au@SiO2 hybrid nanoparticles with the synthesized in a Triton X-100/1- variations of the volume of TEOS–NH ·H O in the reverse microemulsion consist of Triton X-100/1- 3 2 hexanol/cyclohexane/H2 O reverse hexanol/cyclohexane/H2 O. microemulsion. • The morphologies of the nanoparti- cles of Au@SiO2 can be easily tuned by changing the reaction condition. • The Au@SiO2 nanoparticles have many peculiar properties because of their special structure, maki