Article Title

A facile synthesis of monodisperse Au nanoparticles and their catalysis of CO oxidation

Authors

Sheng Peng, Department of Chemistry, Brown University, Providence, Rhode Island 02912, USA
Youngmin Lee, Department of Chemistry, Brown University, Providence, Rhode Island 02912, USA
Chao Wang, Department of Chemistry, Brown University, Providence, Rhode Island 02912, USA
Hongfeng Yin, Chemical Sciences Division, Oak Ridge National Laboratory, Tennessee 37831, USA
Sheng Dai, Chemical Sciences Division, Oak Ridge National Laboratory, Tennessee 37831, USA
Shouheng Sun, Department of Chemistry, Brown University, Providence, Rhode Island 02912, USA

Keywords

Nanoparticle synthesis, Au nanoparticles, catalysis, CO oxidation

Abstract

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.

Graphical Abstract

DOI

https://doi.org/10.1007/s12274-008-8026-3

Publisher

Tsinghua University Press

Recommended Citation

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