A facile synthesis of monodisperse Au nanoparticles and their catalysis of CO oxidation
Nanoparticle synthesis, Au nanoparticles, catalysis, CO oxidation
Monodisperse Au nanoparticles (NPs) have been synthesized at room temperature via a burst nucleation of Au upon injection of the reducing agent t-butylamine-borane complex into a 1, 2, 3, 4-tetrahydronaphthalene solution of HAuCl4·3H2O in the presence of oleylamine. The as-synthesized Au NPs show size-dependent surface plasmonic properties between 520 and 530 nm. They adopt an icosahedral shape and are polycrystalline with multiple-twinned structures. When deposited on a graphitized porous carbon support, the NPs are highly active for CO oxidation, showing 100% CO conversion at –45 °C.
Tsinghua University Press
Sheng Peng,Youngmin Lee,Chao Wang,Hongfeng Yin,Sheng Dai,Shouheng Sun, A facile synthesis of monodisperse Au nanoparticles and their catalysis of CO oxidation. NanoRes.2008, 1: 229-234