Journal
APPLIED SURFACE SCIENCE
Volume 332, Issue -, Pages 40-46Publisher
ELSEVIER
DOI: 10.1016/j.apsusc.2015.01.129
Keywords
Large mesoporous carbon; Polyaniline; In situ chemical polymerization; Supercapacitor
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A composite of polyaniline nanofiber/large mesoporous carbon (PANI-F/LMC) hybrid was prepared by an in situ chemical oxidative polymerization of aniline monomer with nano-CaCO3 templated LMC as host matrix for supercapacitors. The morphology, composition and electronic structure of the composites (PANI-F/LMC) together with pure PANI nanofibers and the LMC were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), FT-IR, X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). It is found that the PANI nanofibers were incorporated into the large mesochannels of LMC with interpenetrating framework formed. Such unique structure endows the PANI-F/LMC composite with a high capacitance of 473 Fg(-1) at a current load of 0.1 Ag-1 with good rate performance and cycling stability, suggesting its potential application in the electrode material for supercapacitors. (C) 2015 Elsevier B.V. All rights reserved.
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