Improved specific capacitance of pitch-based activated carbon by KOH/KMnO4 agent for supercapacitors

Kim Sangjin (김상진); Bai Byong Chol (배병철); Kim Min Il (김민일); Lee, Young-Seak (이영석)

doi:10.1007/s42823-020-00158-6

Improved specific capacitance of pitch-based activated carbon by KOH/KMnO4 agent for supercapacitors

Carbon Letters
Abbr : Carbon Lett.
2020, 30(5), pp.585-591
DOI : 10.1007/s42823-020-00158-6
Publisher : Korean Carbon Society
Research Area : Natural Science > Natural Science General > Other Natural Sciences General
Received : April 10, 2020
Accepted : June 17, 2020
Published : October 1, 2020

Kim Sangjin ¹, Bai Byong Chol ², Kim Min Il ³, Lee, Young-Seak ⁴

¹구미정보전자기술원
²한국생산기술연구원
³한국화학연구원
⁴충남대학교

Accredited

ABSTRACT

The pitch-based activated carbons were prepared with KOH/KMnO4 as a multiple function activation agent to increase the specifc capacitance of a supercapacitor electrode active material. And the porous structure and electrochemical properties of activated carbon were analyzed on varying amounts of KMnO4. KMnO4 was decomposed into K2O, MnO, and O2 at the activation temperature of KOH, and MnO was introduced to activated carbon. K2O/O2 reacts with a surrounding pitch to generate micropores and forms a pathway that exposes MnO to the outside. It also afects to the specifc surface area of activated carbon like KOH chemical activation. The enhanced specifc surface area and introduced MnO in activated carbon led to a 28.9% increase in specifc capacitance.

KEYWORDS

Pitch · Activated carbon · KMnO4 · MnO · Supercapacitor · Specifc capacitance

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) (15) 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 (18) 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.

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

Improved specific capacitance of pitch-based activated carbon by KOH/KMnO4 agent for supercapacitors

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) (15) 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 (18) 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

Improved specific capacitance of pitch-based activated carbon by KOH/KMnO4 agent for supercapacitors

ABSTRACT

KEYWORDS

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KCI Citation Counts (3)

WoS Citation Counts (12) 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) (15) 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 (18) 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 (30) * References for papers published after 2023 are currently being built.

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Citation

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)

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