Fabrication of carbon nanofiber electrodes using poly(acrylonitrile‑co‑vinylimidazole) and their energy storage performance

Kyung-Hye Jung (정경혜); So Jeong Kim (김소정); SON YE JI (손예지); John P. Ferraris

doi:10.1007/s42823-019-00035-x

Fabrication of carbon nanofiber electrodes using poly(acrylonitrile‑co‑vinylimidazole) and their energy storage performance

Carbon Letters
Abbr : Carbon Lett.
2019, 29(2), pp.177-182
DOI : 10.1007/s42823-019-00035-x
Publisher : Korean Carbon Society
Research Area : Natural Science > Natural Science General > Other Natural Sciences General
Received : April 20, 2018
Accepted : April 8, 2019
Published : April 1, 2019

Kyung-Hye Jung ¹, So Jeong Kim ¹, SON YE JI ¹, John P. Ferraris ²

¹대구가톨릭대학교
²The University of Texas at Dallas

Accredited

ABSTRACT

For electrodes in electrochemical double-layer capacitors, carbon nanofibers (CNFs) were prepared by thermal treatment of precursor polymer nanofibers, fabricated by electrospinning. Poly(acrylonitrile-co-vinylimidazole) (PAV) was employed as a precursor polymer of carbon nanofibers due to the effective cyclization of PAV polymer chains during thermal treatment compared to a typical precursor, polyacrylonitrile (PAN). PAV solutions with different comonomer compositions were prepared and electrospun to produce precursor nanofibers. Surface images obtained from scanning electron microscopy showed that their nanofibrous structure was well preserved after carbonization. It was also confirmed that electrospun PAV nanofibers were successfully converted to carbon nanofibers after the carbonization step by Raman spectroscopy. Carbon nanofiber electrodes derived from PAV showed higher specific capacitances and energy/power densities than those from PAN, which was tested by coin-type cells. It was also shown that PAV with an acrylonitrile/vinylimidazole composition of 83:17 is most promising for the carbon nanofiber precursor exhibiting a specific capacitance of 114 F/g. Their energy and power density are 70.1 Wh/kg at 1 A/g and 9.5 W/kg at 6 A/g, respectively. In addition, pouch cells were assembled to load the higher amount of electrode materials in the cells, and a box-like cyclic voltammetry was obtained with high capacitances.

KEYWORDS

Carbon nanofibers · Carbon precursor · Electrodes · Electrospinning

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Carbon Letters 2023 KCI Impact Factor : 1.35 KCI-WoS Impact Factor : 4.82

Fabrication of carbon nanofiber electrodes using poly(acrylonitrile‑co‑vinylimidazole) and their energy storage performance

ABSTRACT

KEYWORDS

Citation status

This is the result of checking the information with the same ISSN, publication year, volume, and start page between the WoS and the KCI journals. (as of 2023-07-14)

Total Citation Counts(KCI+WOS) (7) This is the number of times that the duplicate count has been removed by comparing the citation list of WoS and KCI.

Scopus Citation Counts (10) This is the result of checking the information with the same ISSN, publication year, volume, and start page between articles in KCI and the SCOPUS journals. (as of 2024-07-01)

* References for papers published after 2023 are currently being built.

Carbon Letters 2023 KCI Impact Factor : 1.35 KCI-WoS Impact Factor : 4.82

Fabrication of carbon nanofiber electrodes using poly(acrylonitrile‑co‑vinylimidazole) and their energy storage performance

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KEYWORDS

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KCI Citation Counts (3)

WoS Citation Counts (4) This is the result of checking the information with the same ISSN, publication year, volume, and start page between the WoS and the KCI journals. (as of 2023-07-14)

Total Citation Counts(KCI+WOS) (7) This is the number of times that the duplicate count has been removed by comparing the citation list of WoS and KCI.

Scopus Citation Counts (10) This is the result of checking the information with the same ISSN, publication year, volume, and start page between articles in KCI and the SCOPUS journals. (as of 2024-07-01)

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This is the result of checking the information with the same ISSN, publication year, volume, and start page between the WoS and the KCI journals. (as of 2023-07-14)

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