Effect of poly(3,4-ethylenedioxythiophene) (PEDOT) on the pseudocapacitive properties of manganese oxide (MnO2) in the PEDOT/MnO 2/multiwall carbon nanotube (MWNT) composite

Seung Beom Yoon, Kwang Bum Kim

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

The effect of the presence of poly(3,4-ethylenedioxythiophene) (PEDOT) on the pseudocapacitive properties of manganese oxide (MnO2) is investigated using PEDOT/MnO2/multiwall carbon nanotube-based (MWNT) coaxial composites containing different PEDOT contents. To prepare these PEDOT/MnO2/MWNT coaxial composites, a nanometer-thick outer layer of PEDOT was electrochemically polymerized onto the MnO2/MWNT composite, without affecting the morphology of MnO2. The pseudocapacitive properties of the MnO2/MWNT and PEDOT/MnO2/MWNT composites were evaluated by cyclic voltammetry. By analysis of the voltammetric charge, the outermost PEDOT layer on the MnO2/MWNT composite was found to improve the rate capability mainly through acting as an electrically conductive layer, rather the specific capacitance of the MnO2/MWNT composite.

Original languageEnglish
Pages (from-to)135-142
Number of pages8
JournalElectrochimica Acta
Volume106
DOIs
Publication statusPublished - 2013 Jan 1

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Carbon Nanotubes
Manganese oxide
Carbon nanotubes
Composite materials
poly(3,4-ethylene dioxythiophene)
manganese oxide
Cyclic voltammetry
Capacitance

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Electrochemistry

Cite this

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title = "Effect of poly(3,4-ethylenedioxythiophene) (PEDOT) on the pseudocapacitive properties of manganese oxide (MnO2) in the PEDOT/MnO 2/multiwall carbon nanotube (MWNT) composite",
abstract = "The effect of the presence of poly(3,4-ethylenedioxythiophene) (PEDOT) on the pseudocapacitive properties of manganese oxide (MnO2) is investigated using PEDOT/MnO2/multiwall carbon nanotube-based (MWNT) coaxial composites containing different PEDOT contents. To prepare these PEDOT/MnO2/MWNT coaxial composites, a nanometer-thick outer layer of PEDOT was electrochemically polymerized onto the MnO2/MWNT composite, without affecting the morphology of MnO2. The pseudocapacitive properties of the MnO2/MWNT and PEDOT/MnO2/MWNT composites were evaluated by cyclic voltammetry. By analysis of the voltammetric charge, the outermost PEDOT layer on the MnO2/MWNT composite was found to improve the rate capability mainly through acting as an electrically conductive layer, rather the specific capacitance of the MnO2/MWNT composite.",
author = "Yoon, {Seung Beom} and Kim, {Kwang Bum}",
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T1 - Effect of poly(3,4-ethylenedioxythiophene) (PEDOT) on the pseudocapacitive properties of manganese oxide (MnO2) in the PEDOT/MnO 2/multiwall carbon nanotube (MWNT) composite

AU - Yoon, Seung Beom

AU - Kim, Kwang Bum

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N2 - The effect of the presence of poly(3,4-ethylenedioxythiophene) (PEDOT) on the pseudocapacitive properties of manganese oxide (MnO2) is investigated using PEDOT/MnO2/multiwall carbon nanotube-based (MWNT) coaxial composites containing different PEDOT contents. To prepare these PEDOT/MnO2/MWNT coaxial composites, a nanometer-thick outer layer of PEDOT was electrochemically polymerized onto the MnO2/MWNT composite, without affecting the morphology of MnO2. The pseudocapacitive properties of the MnO2/MWNT and PEDOT/MnO2/MWNT composites were evaluated by cyclic voltammetry. By analysis of the voltammetric charge, the outermost PEDOT layer on the MnO2/MWNT composite was found to improve the rate capability mainly through acting as an electrically conductive layer, rather the specific capacitance of the MnO2/MWNT composite.

AB - The effect of the presence of poly(3,4-ethylenedioxythiophene) (PEDOT) on the pseudocapacitive properties of manganese oxide (MnO2) is investigated using PEDOT/MnO2/multiwall carbon nanotube-based (MWNT) coaxial composites containing different PEDOT contents. To prepare these PEDOT/MnO2/MWNT coaxial composites, a nanometer-thick outer layer of PEDOT was electrochemically polymerized onto the MnO2/MWNT composite, without affecting the morphology of MnO2. The pseudocapacitive properties of the MnO2/MWNT and PEDOT/MnO2/MWNT composites were evaluated by cyclic voltammetry. By analysis of the voltammetric charge, the outermost PEDOT layer on the MnO2/MWNT composite was found to improve the rate capability mainly through acting as an electrically conductive layer, rather the specific capacitance of the MnO2/MWNT composite.

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