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Title: Morphological behaviour, electronic bond formation and electrochemical performance study of V2O5-polyaniline composite and its application in asymmetric supercapacitor

Abstract

Highlights: • Interlinked V{sub 2}O{sub 5}-PANI composites are synthesized by chemical polymerization. • V{sub 2}O{sub 5}-PANI exhibits the highest capacitance of 529.56 F g{sup −1} with wide window of 1.6 V. • Correlation between electrochemical performances with IR peak shifts is studied. • Inorganic-organic synergistic effect plays crucial role for wide working window. • Asymmetric supercapacitor exhibits high energy and power in wide potential windows. - Abstract: To meet the demand of high-energy density supercapacitors, development of suitable electrode material with a wide potential window and high specific capacitance is most important. In this report, we have synthesized V{sub 2}O{sub 5}-PANI nanocomposite through in-situ intercalation and polymerization reaction of aniline with V{sub 2}O{sub 5}, which shows a wide potential window as well as high specific capacitance. XRD, SEM and FTIR have been used to characterize the electrode materials. Their electrochemical activity and pseudocapacitive performances were investigated. The correlation between morphology and electrochemical performances were investigated which is a vital way for the selection of electrode materials. Due to the organic-inorganic compatibility, V{sub 2}O{sub 5}-PANI exhibits good electrochemical charge storage in a wide potential window of 1.6 V (ranging between −0.4 V to 1.2 V) with excellent stability of 84.2% capacitancemore » retention after 5000 GCD cycles. Moreover, asymmetric supercapacitor was assembled V{sub 2}O{sub 5}-PANI composite and NiMn{sub 2}O{sub 4} electrodes which yield remarkable energy and power density.« less

Authors:
; ; ; ;  [1]
  1. Department of Instrumentation Science, Jadavpur University, Kolkata, 700032 (India)
Publication Date:
OSTI Identifier:
22805321
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 107; Other Information: Copyright (c) 2017 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; ANILINE; CAPACITANCE; CAPACITIVE ENERGY STORAGE EQUIPMENT; CLATHRATES; COMPOSITE MATERIALS; ELECTROCHEMISTRY; ELECTRODES; ENERGY DENSITY; FOURIER TRANSFORM SPECTROMETERS; INFRARED SPECTRA; MORPHOLOGY; NANOCOMPOSITES; POLYMERIZATION; SCANNING ELECTRON MICROSCOPY; VANADIUM OXIDES; X-RAY DIFFRACTION

Citation Formats

Roy, Atanu, Ray, Apurba, Sadhukhan, Priyabrata, Saha, Samik, and Das, Sachindranath. Morphological behaviour, electronic bond formation and electrochemical performance study of V2O5-polyaniline composite and its application in asymmetric supercapacitor. United States: N. p., 2018. Web. doi:10.1016/J.MATERRESBULL.2018.08.013.
Roy, Atanu, Ray, Apurba, Sadhukhan, Priyabrata, Saha, Samik, & Das, Sachindranath. Morphological behaviour, electronic bond formation and electrochemical performance study of V2O5-polyaniline composite and its application in asymmetric supercapacitor. United States. https://doi.org/10.1016/J.MATERRESBULL.2018.08.013
Roy, Atanu, Ray, Apurba, Sadhukhan, Priyabrata, Saha, Samik, and Das, Sachindranath. Thu . "Morphological behaviour, electronic bond formation and electrochemical performance study of V2O5-polyaniline composite and its application in asymmetric supercapacitor". United States. https://doi.org/10.1016/J.MATERRESBULL.2018.08.013.
@article{osti_22805321,
title = {Morphological behaviour, electronic bond formation and electrochemical performance study of V2O5-polyaniline composite and its application in asymmetric supercapacitor},
author = {Roy, Atanu and Ray, Apurba and Sadhukhan, Priyabrata and Saha, Samik and Das, Sachindranath},
abstractNote = {Highlights: • Interlinked V{sub 2}O{sub 5}-PANI composites are synthesized by chemical polymerization. • V{sub 2}O{sub 5}-PANI exhibits the highest capacitance of 529.56 F g{sup −1} with wide window of 1.6 V. • Correlation between electrochemical performances with IR peak shifts is studied. • Inorganic-organic synergistic effect plays crucial role for wide working window. • Asymmetric supercapacitor exhibits high energy and power in wide potential windows. - Abstract: To meet the demand of high-energy density supercapacitors, development of suitable electrode material with a wide potential window and high specific capacitance is most important. In this report, we have synthesized V{sub 2}O{sub 5}-PANI nanocomposite through in-situ intercalation and polymerization reaction of aniline with V{sub 2}O{sub 5}, which shows a wide potential window as well as high specific capacitance. XRD, SEM and FTIR have been used to characterize the electrode materials. Their electrochemical activity and pseudocapacitive performances were investigated. The correlation between morphology and electrochemical performances were investigated which is a vital way for the selection of electrode materials. Due to the organic-inorganic compatibility, V{sub 2}O{sub 5}-PANI exhibits good electrochemical charge storage in a wide potential window of 1.6 V (ranging between −0.4 V to 1.2 V) with excellent stability of 84.2% capacitance retention after 5000 GCD cycles. Moreover, asymmetric supercapacitor was assembled V{sub 2}O{sub 5}-PANI composite and NiMn{sub 2}O{sub 4} electrodes which yield remarkable energy and power density.},
doi = {10.1016/J.MATERRESBULL.2018.08.013},
url = {https://www.osti.gov/biblio/22805321}, journal = {Materials Research Bulletin},
issn = {0025-5408},
number = ,
volume = 107,
place = {United States},
year = {2018},
month = {11}
}