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  • Title: Facile synthesis and enhanced catalytic performance of reduced graphene oxide decorated with hexagonal structure Ni nanoparticles.
    Author: Ji Z, Wang Y, Shen X, Ma H, Yang J, Yuan A, Zhou H.
    Journal: J Colloid Interface Sci; 2017 Feb 01; 487():223-230. PubMed ID: 27771549.
    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.
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