Impact of the oxygen functional group of nitric acid-treated activated carbon on KOH activation reaction

Kim Ji-Hyun (김지현); Hwang, Sang Youp (황상엽); Jung Eun Park (박정은); Lee Gi Bbum (이기범); Ho Kim (김호); Kim Seokhwi (김석휘); Bum-Ui Hong (홍범의)

doi:10.1007/s42823-019-00024-0

Impact of the oxygen functional group of nitric acid-treated activated carbon on KOH activation reaction

Carbon Letters
Abbr : Carbon Lett.
2019, 29(3), pp.281-287
DOI : 10.1007/s42823-019-00024-0
Publisher : Korean Carbon Society
Research Area : Natural Science > Natural Science General > Other Natural Sciences General
Received : August 21, 2018
Accepted : April 25, 2019
Published : June 1, 2019

Kim Ji-Hyun ¹, Hwang, Sang Youp ², Jung Eun Park ², Lee Gi Bbum ¹, Ho Kim ², Kim Seokhwi ¹, Bum-Ui Hong ¹

¹고등기술연구원
²고등기술연구원연구조합

Accredited

ABSTRACT

To prepare activated carbon with a high specific surface area, oxygen functional groups (OFGs) that can serve as useful electron donors during KOH activation were treated with nitric acid and incorporated into activated carbon. OFGs are incorporated differently according to the surface characteristics of starting materials. Up to 22.46% OFGs are incorporated into wood-based activated carbons (WACs), the C=O, COOH contents was 1.90, 17.05%, respectively. Whereas up to 12.82% OFGs are incorporated into coconut shell-based activated carbons, the C=O, COOH contents was 4.12, 6.15%, respectively. The OFGs used for increasing the specific surface area are the carbonyl group, and as the content of the functional group increases, the carbonyl group spreads to the carboxyl group. The specific surface area of activated carbons increased by 10–68% with an increase in the carbonyl group up to 6% (maximum point of carbonyl group). On the other hand, the specific surface area for WACs increased when the carboxyl group was 10% or below, but decreased by 6–15% when it increased to 10% or excess.

KEYWORDS

Oxygen functional groups KOH activation Wood-based activated carbons Coconut shell-based activated carbons Specific surface area

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Total Citation Counts(KCI+WOS) (38) This is the number of times that the duplicate count has been removed by comparing the citation list of WoS and KCI.

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Carbon Letters 2023 KCI Impact Factor : 1.35 KCI-WoS Impact Factor : 6.04

Impact of the oxygen functional group of nitric acid-treated activated carbon on KOH activation reaction

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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 2024-07-28)

Total Citation Counts(KCI+WOS) (38) 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 (39) 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 2024-10-01)

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

Carbon Letters 2023 KCI Impact Factor : 1.35 KCI-WoS Impact Factor : 6.04

Impact of the oxygen functional group of nitric acid-treated activated carbon on KOH activation reaction

ABSTRACT

KEYWORDS

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KCI Citation Counts (4)

WoS Citation Counts (34) 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 2024-07-28)

Total Citation Counts(KCI+WOS) (38) 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 (39) 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 2024-10-01)

REFERENCES (12) * References for papers published after 2023 are currently being built.

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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 2024-07-28)

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