Preparation of graphene supported nickel nanoparticles and their application to methanol electrooxidation in alkaline medium

作者：Lingrong Zhang, Jin Zhao, Meng Li, Haitao Ni, Jinlei Zhang, Xiaomiao Feng, Yanwen Ma, Quli Fan, Xizhang Wang, Zheng Hu, Wei Huang · 发表于：New Journal of Chemistry · 年份：2012 · DOI：10.1039/c2nj20690k · 被引用次数：56 · 研究领域：Electrocatalysts for Energy Conversion、Supercapacitor Materials and Fabrication、Graphene research and applications

In this paper, we present the synthesis of Ni nanoparticles supported on graphene (Ni/G) using graphene oxide (GO) and Ni2+ ions as starting materials. GO is mixed with NiCl2 solution and treated by hydrazine. Hydrazine both reduces the GO and forms a complex with nickel(II). A treatment in the tubular furnace allows decomposing the nickel-hydrazine complex into Ni metallic nanoparticles as well as further reducing the GO into graphene. The materials are characterized by X-ray diffraction, transmission electron microscopy, X-ray photoelectron spectroscopy and thermogravimetry–mass spectrometry as well as tested for methanol electrooxidation in alkaline medium.