Sodium-lignosulfonate derived activated carbon: an investigation into the role of NaOH in the activation mechanism

Choi Jueun; Choi Go Bong; Seo Sol Bin; Choi Yu Rim; Kang Min; Kim Yoong Ahm

doi:10.1007/s42823-023-00522-2

Sodium-lignosulfonate derived activated carbon: an investigation into the role of NaOH in the activation mechanism

Carbon Letters
Abbr : Carbon Lett.
2023, 33(6), pp.1819-1826
DOI : 10.1007/s42823-023-00522-2
Publisher : Korean Carbon Society
Research Area : Natural Science > Natural Science General > Other Natural Sciences General
Received : March 21, 2023
Accepted : April 24, 2023
Published : October 1, 2023

Choi Jueun ¹, Choi Go Bong ², Seo Sol Bin ³, Choi Yu Rim ³, Kang Min ³, Kim Yoong Ahm ³

¹Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasuga-koen, Kasuga, Fukuoka, 816-8580, Japan
²Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
³Chonnam National University

Accredited

ABSTRACT

We produced an activated carbon using sodium-lignosulfonate, in which we investigated how the sodium salt in lignin served as the activating agent during heat treatment. Our process resulted in a product with a high specific surface area of 1324 m2/g at 800 °C and microporous structure. During the activation process, we observed the consumption of carbon due to the dehydration reaction of NaOH and the reduction of Na2CO3 to metallic Na, which created pores through oxidation/reduction reactions. The intercalation of metallic Na between the lattices at high temperatures formed additional pores and increased the specific surface area. Our proposed mechanism holds promise for enhancing the control of the microstructure and porosity of activated carbons through the thermal treatment of biomass.

KEYWORDS

Lignosulfonate NaOH activation Activated carbon Mechanism

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This paper was written with support from the National Research Foundation of Korea.

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

Sodium-lignosulfonate derived activated carbon: an investigation into the role of NaOH in the activation mechanism

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 2024-07-26)

Total Citation Counts(KCI+WOS) (2) 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 (2) 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

Sodium-lignosulfonate derived activated carbon: an investigation into the role of NaOH in the activation mechanism

ABSTRACT

KEYWORDS

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WoS Citation Counts (2) 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 2024-07-26)

Total Citation Counts(KCI+WOS) (2) 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 (2) 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 2024-07-26)

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