Sodium Citrate： A Universal Reducing Agent for Reduction/ Decoration of Graphene Oxide with Au Nanoparticles

作     者：Zhe Zhang Huihui Chen Chunyan Xing Mingyi Guo Fugang Xu Xiaodan Wang Hermann J. Gruber Bailin Zhang Jilin Tang 

作者机构：State Key Laboratory of Electroanaytical Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun 130022 China Department of Chemistry Anhui University Hefei 230039 China Department of Chemistry and State Key Laboratory of Inorganic Synthesis and Preparative Chemistry Jilin University Changchun 130023 China Institute of Biophysics Johannes Kepler University of Linz 4040 Linz Austria 

出 版 物：《Nano Research》 (纳米研究（英文版）)

年 卷 期：2011年第4卷第6期

页      面：599-611页

核心收录：

学科分类：0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0702[理学-物理学] 

主　　题：Graphene nanosheets sodium citrate Au nanoparticles hybrid materials electrocatalysis 

摘      要：A facile method is proposed for the synthesis of reduced graphene oxide nanosheets （RGONS） and Au nanoparticle-reduced graphene oxide nanosheet （Au-RGONS） hybrid materials, using graphene oxide （GO） as precursor and sodium citrate as reductant and stabilizer. The resulting RGONS and Au-RGONS hybrid materials were characterized by UV-vis spectroscopy, X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, Raman spectroscopy, atomic force microscopy, transmission electron microscopy, and X-ray diffraction. It was found that the RGONS and Au-RGONS hybrid materials formed stable colloidal dispersions through hydrogen bonds between the residual oxygen-containing functionalities on the surface of RGONS and the hydroxyl/carboxyl groups of sodium citrate. The electrochemical responses of RGONS and Au-RGONS hybrid material-modified glassy carbon electrodes （GCE） to three kinds of biomolecules were investigated, and all of them showed a remarkable increase in electrochemical performance relative to a bare GCE.