Cited by 171Supercapacitor Materials and FabricationAdvanced battery technologies researchConducting polymers and applications

Polyaniline–MnO2 coaxial nanofiber with hierarchical structure for high-performance supercapacitors

Jiang, Hao, Ma, Jan, Li, Chunzhong·2012·Journal of Materials Chemistry

Abstract

We demonstrated the facile loading of ultrafine and loosened K-birnessite MnO2 floccules on the surface of polyaniline (PANI) nanofibers by simply soaking the polyaniline nanofibers in a KMnO4 aqueous solution for electrochemical energy storage applications. The as-prepared PANI–MnO2 coaxial nanofibers with optimal composition, when applied as an electrode, exhibited a high specific capacitance (383 F g−1 at 0.5 A g−1) with good rate and cycling stability in 1 M Na2SO4 aqueous solution. Such intriguing electrochemical performance is mainly attributed to the synergistic effects of the combined pseudo-capacitive contributions from the core and shell. The present findings promoted the development of advanced electrode materials, exhibiting huge potential for supercapacitors.

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Registry

Crossref · 10.1039/c2jm33249c

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17 of 17 references verified0 citation errors · 0 not checkable

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  • The stability of the D-MoS2-PANI aerogel is higher than that of polyaniline-MnO2 coaxial nanofiber (75.5% retention after 2000 cycles) and coaxial PANI/TiN/PANI nanotube (83% retention after 3000 cycles).

    “the stability of D-MoS2-PANI aerogel is higher than that of many previous PANI based hybrid electrodes, such as polyaniline-MnO2 coaxial nanofiber[28] (75.5% retention after 2000 cycle) and coaxial PANI/TiN/PANI nanotube[29] (83% retention after 3000 cycle).”
  • The electrochemical reaction provides more paths for insertion and extraction of ions within the PANI nanowire arrays.

    “the electrochemical reaction provides more paths for insertion and extraction of ions within the PANI nanowire arrays.[28]”

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Authors
Jiang, H., Ma, J., & Li, C.
Affiliations
  • East China University of Science and Technology (CN)
  • Nanyang Technological University (SG)
Corresponding author
Li, Chunzhong
Venue
Journal of Materials Chemistry
Published
2012
Volume
22
Issue
33
Pages
16939
ISSN
  • 0959-9428 (ISSN-L)
  • 1364-5501
OpenAlex
W2141325582
Cited by
171
References
17
Citations by year
2026: 2 · 2025: 6 · 2024: 3 · 2023: 12 · 2022: 4 · 2021: 12 · 2020: 10 · 2019: 17 · 2018: 12 · 2017: 13 · 2016: 18 · 2015: 21 · 2014: 25 · 2013: 15 · 2012: 1
FWCI
7.65
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Materials Chemistry (publishedVersion)
  • DR-NTU (Nanyang Technological University) (submittedVersion)
Funders
  • National Natural Science Foundation of China
  • Fundamental Research Funds for the Central Universities
Topics
  • Physical Sciences › Materials Science › Electronic, Optical and Magnetic Materials › Supercapacitor Materials and Fabrication
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Advanced battery technologies research
  • Physical Sciences › Materials Science › Polymers and Plastics › Conducting polymers and applications
Keywords
polyaniline, manganese dioxide, coaxial nanofibers, supercapacitors, manganese oxide, specific capacitance, pseudocapacitance, hierarchy, electrode materials, cycling stability

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