Electrostatic-assembly-driven formation of micrometer-scale supramolecular sheets of (3-aminopropyl)triethoxysilane(APTES)-HAuCl4 and their subsequent transformation into stable APTES bilayer-capped gold nanoparticles through a thermal process.
In this letter, we demonstrate for the first time the electrostatically driven assembly of (3-aminopropyl)triethoxysilane (APTES) and HAuCl(4) in aqueous media into novel micrometer-scale supramolecular sheets and their subsequent transformation into small, stable APTES bilayer-capped gold nanoparticles through a thermal process. The nanoparticle formation mechanism is also discussed.
Sun
Xuping
X
State Key Lab of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin, PR China. sunxp@ciac.jl.cn
Wei
Wentao
W