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Rapid Electrochemical Synthesis of Hydrogenated Graphene Oxide Using Ni Nanoparticles

Authors: Rahul Krishna, Elby Titus, Olena Okhay, João Campos Gil, João Ventura, José J. A. Gracio

Ref.: Int. J. Electrochem. Sci. 9(7), 4054-4069 (2014)

Abstract: A novel method for the rapid hydrogenation of graphene oxide (GO) is established using nickel nanoparticles (Ni NPs) and through electrochemical reaction. In-situ generated hydrogen and enhanced spillover on graphene sheet makes the hydrogenated graphene oxide (HGO) easily at room temperature. Initially, a well intercalated Ni-GO species was produced due to the nanosize effect of nickel nanoparticles and promoted the homogenous hydrogenation of GO sheets. The structure, composition and morphology of GO, Ni-GO and HGO were fully characterized. I-V characteristics of HGO showed very interesting properties such as hysteresis, resistive switching and rectifier properties.