One-pot photochemical synthesis of ultrathin Au nanocrystals on co-reduced graphene oxide and its application

Jianli Chen; Xiaoqiang Cui; Qiyu Wang; Haitao Wang; Xianliang Zheng; Chang Liu; Tianyu Xue; Shumin Wang; Weitao Zheng

doi:10.1016/j.jcis.2012.06.007

One-pot photochemical synthesis of ultrathin Au nanocrystals on co-reduced graphene oxide and its application

J Colloid Interface Sci. 2012 Oct 1;383(1):140-7. doi: 10.1016/j.jcis.2012.06.007. Epub 2012 Jun 16.

Authors

Jianli Chen¹, Xiaoqiang Cui, Qiyu Wang, Haitao Wang, Xianliang Zheng, Chang Liu, Tianyu Xue, Shumin Wang, Weitao Zheng

Affiliation

¹ Department of Materials Science, Key Laboratory of Automobile Materials of MOE, Jilin University, 130012 Changchun, PR China.

PMID: 22771094
DOI: 10.1016/j.jcis.2012.06.007

Abstract

In this study, we have developed a simple and green method for one-pot synthesis of ultrathin gold nanocrystals attached to graphene through photo irradiation. High-yield ultrathin Au nanocrystals are distributed on the reduced graphene oxide, immediately followed by the deoxygenation of graphene oxide in the absence of chemical reductants and surfactants. The procedure has been thoroughly completed and the products have been analyzed by transmission electron microscopy (TEM), atomic force microscopy (AFM), X-ray photoelectron spectroscopy (XPS), etc. The results show that both graphene oxide and photo irradiation play essential roles in the formation of ultrathin Au nanocrystals. The nanohybrids also display excellent electro-catalytical performance to methanol oxidation. This study not only has potential in the applications of bio-sensing and fuel cells, but also provides new procedures for the preparation of metal/graphene nanomaterials.