Scalable fabrication of supercapacitors by nozzle-free electrospinning

From National Research Council Canada

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DOIResolve DOI: https://doi.org/10.1021/acsaem.7b00227
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  1. National Research Council of Canada. Energy, Mining and Environment
FormatText, Article
Journal titleACS Applied Energy Materials
ISSN2574-0962
2574-0962
Volume1
Issue2
Pages296–300
Subjectenergy storage devices; MnO2; nanofibers; nozzle-free electrospinning; supercapacitors
Abstract
Nozzle-free electrospinning was investigated as a facile technique for producing nanoscale materials for supercapacitors. MnO2 nanofibers and their composites with multiwalled carbon nanotubes (MWCNTs) were synthesized in a single step, using polyvinylpyrrolidone (PVP) and Mn(CH3COO)2·4H2O as starting materials, followed up by heat treatment in ambient air. Nanofibers of relatively uniform diameter were produced at high rates. The nanofibers exhibited good electrical contact between MnO2 and MWCNT without degradation, which was attributed to the improved stability of MWCNTs in PVP solutions. Electrochemical testing of the composites demonstrated a high capacitance of 1.43 F cm–2 at a scan rate of 100 mV s–1 in the three-electrode tests. Electrodes and devices produced by nozzle-free electrospinning are promising for practical energy storage applications.
Publication date
PublisherACS
LanguageEnglish
Peer reviewedYes
NRC numberNRC-EME-55875
NPARC number23002802
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Record identifier50b11044-1ec4-4cdf-96a1-9ec7e523cee2
Record created2018-03-01
Record modified2020-05-30
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