title: Facile synthesis and enhanced catalytic performance of reduced graphene oxide decorated with hexagonal structure Ni nanoparticles.
abstract: In this study, reduced graphene oxide (RGO) supported Ni nanoparticles were synthesized by a facile in-situ refluxing approach using triethylene glycol as both reductive and dispersing agent. The as-synthesized RGO/Ni nanocomposites were characterized by X-ray diffraction, Raman spectroscopy and transmission electron microscopy, which revealed that Ni nanoparticles with hexagonal close-packed structure were homogeneously dispersed on the surface of RGO sheets. The catalytic activity and electrochemical properties of the RGO/Ni nanocomposites were investigated. It is found that the RGO/Ni nanocomposites exhibit markedly enhanced catalytic activity toward the reduction of p-nitrophenol by NaBH4, which is comparable to noble metal catalyst. The RGO/Ni nanocomposites also exhibited excellent electrocatalytic response to glucose. The linear range, detection limit and sensitivity were estimated to be 0.01-3.0mM (R2=0.997), 2.8μM and 535.258μAmM-1cm-2, respectively. It is expected that this facile method presented here could be extended to synthesize other RGO/metal nanocomposites with various functions.
authors: School of Chemistry and Chemical Engineering, School of Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, PR China.
authors: Zhenyuan
authors: Z
authors: Ji
authors: School of Chemistry and Chemical Engineering, School of Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, PR China.
authors: Yuqin
authors: Y
authors: Wang
authors: School of Chemistry and Chemical Engineering, School of Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, PR China. Electronic address: xiaopingshen@163.com.
authors: Xiaoping
authors: X
authors: Shen
authors: School of Chemistry and Chemical Engineering, School of Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, PR China.
authors: Hanyu
authors: H
authors: Ma
authors: School of Chemistry and Chemical Engineering, School of Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, PR China.
authors: Juan
authors: J
authors: Yang
authors: School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, PR China.
authors: Aihua
authors: A
authors: Yuan
authors: School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, PR China.
authors: Hu
authors: H
authors: Zhou
keywords: Catalysis; Graphene; Nanocomposites; Nickel; Synthesis