Synthesis of graphene via ultra-sonic exfoliation of graphite oxide and its electrochemical characterization
By Asgar, Hassnain; Deen, K. M.; Riaz, Usman; Rahman, Zia Ur; Shah, Umair Hussain; Haider, Waseem
Published in Materials Chemistry and Physics
2018
Abstract
A direct method of producing graphene from graphite oxide (GO) via ultra-sonication is presented in this work. The synthesis of graphene was validated through IR, XRD, Raman, and {XPS} analyses. Moreover, the diffraction pattern obtained from {TEM} also validated the formation of graphene with characteristics (002) plane. The electrochemical behavior of {GO} and graphene was evaluated by electrochemical impedance spectroscopy and linear sweep voltammetry in 0.5M {KOH} solution. The relatively larger effective pseudocapacitance and broad current peak exhibited by {GO} in the {LSV} plots was related with the dominant adsorption of
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