A Facile Synthesis of Monodisperse Au Nanoparticles and Their Catalysis of CO Oxidation

作者：Peng Sheng; Lee Youngmin; Wang Chao; Yin Hongfeng; Dai Sheng; Sun Shouheng^*

来源：Nano Research, 2008, 1(3): 229-234.

DOI：10.1007/s12274-008-8026-3

• 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 HAuCl(4)center dot 3H(2)O 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 degrees C.

• 出版日期2008-9