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AuthorAl-Enizi, Abdullah M.
AuthorElzatahry, Ahmed A.
AuthorAbdullah, Aboubakr M.
AuthorAlmaadeed, Mariam A.
AuthorWang, Jinxiu
AuthorZhao, Dongyuan
AuthorAl-Deyab, Salem
Available date2016-03-06T14:12:58Z
Publication Date2014-05
Publication NameCarbon
CitationAl-Enizi, A.M., Elzatahry, A.A., Abdullah, A.M., Almaadeed, M.A., Wang, J., Zhao, D., Al-Deyab, S. "Synthesis and electrochemical properties of nickel oxide/carbon nanofiber composites" (2014) Carbon, 71, pp. 276-283.
AbstractThe electrospinning of polyacrylonitrile (PAN) with a polyaniline and graphene sol–gel mixture produced uniform, smooth fibers with an average diameter of 0.3 μm. These electrospun fibers were stabilized for 2 h at 200 °C and then carbonized at 800 °C for 5 h. Composites were prepared by depositing Ni(OH)2 on the carbon nanofibers (CNFs) and calcining them at different temperatures. The composites were characterized with X-ray diffraction (XRD), transmission electron microscopy (TEM) and scanning electron microscopy (SEM). The effect of the calcination temperatures on the electrochemical properties was studied using cyclic voltammetry and electrochemical impedance spectroscopy. The specific capacitance (SC) was found to be highest (738 F g−1) at a calcination temperature of 400 °C. The charge transfer resistance (Rp) decreased as the calcination temperature was increased. However, the electrical double layer capacitance (EDLC) increased with an increase in the calcination temperature. The EDLC increased from 0.144 F g−1 at a calcination temperature of 100 °C to 485 F g−1 at a calcination temperature of 500 °C.
SponsorDeanship of Scientific Research at King Saud University for funding this work through the research group project No. RGP-VPP-227.
PublisherElsevier Ltd
SubjectElectrospun fibres
SubjectCalcination temperatures
SubjectElectrochemical properties
TitleSynthesis and electrochemical properties of nickel oxide/carbon nanofiber composites
Volume Number71

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