@article{ART003241518},
author={Choi Jueun and Ideta Keiko and Yi Hyeonseok and Kato Toru and Saito Koji and Watanabe Hiroko and Nakabayashi Koji and Miyawaki Jin and Kim Yoong Ahm and Yoon Seong-Ho},
title={Marine biomass-derived activated carbon as an electrode material for electric double-layer capacitors},
journal={Carbon Letters},
issn={1976-4251},
year={2025},
volume={35},
number={3},
pages={1221-1233},
doi={10.1007/s42823-024-00854-7}
TY - JOUR
AU - Choi Jueun
AU - Ideta Keiko
AU - Yi Hyeonseok
AU - Kato Toru
AU - Saito Koji
AU - Watanabe Hiroko
AU - Nakabayashi Koji
AU - Miyawaki Jin
AU - Kim Yoong Ahm
AU - Yoon Seong-Ho
TI - Marine biomass-derived activated carbon as an electrode material for electric double-layer capacitors
JO - Carbon Letters
PY - 2025
VL - 35
IS - 3
PB - Korean Carbon Society
SP - 1221
EP - 1233
SN - 1976-4251
AB - Marine biomass (MB) offers an environmentally friendly and readily available carbon source from the ocean. However, the high concentration of alkali and alkaline earth metals (AAEMs) in MB typically reduces the carbon yield and inhibits micropore formation during heat treatment due to catalytic gasification. In this study, we successfully synthesized activated carbon (AC) with a high specific surface area (> 1,500 m2/g) and significant mesopore content (60%, mean pore size: 3.4 nm) from MB by employing preheating, controlled acid purification, and CO₂ activation. The formation of mesopores in the MB-derived AC was driven by catalytic gasification induced by intrinsic and residual AAEMs during preheating and physical activation processes. We evaluated the potential of the MB-derived AC as an electrode material for electric double-layer capacitors (EDLCs). The material demonstrated high specific capacitance values of 25.9 F/g and 29.4 F/g at 2.7 V and 3.3 V, respectively, during charge–discharge cycles. These high capacitance values at elevated voltages were attributed to the increased number of solvated ions (e.g., 1.93 mmol/g at 3.3 V) present in the mesopores. Fluorine-19 nuclear magnetic resonance (19F solid-state NMR) analysis revealed a substantial increase in solvated ion concentration within the mesopores of the MB-derived AC electrode at 3.3 V, demonstrating enhanced ion mobility and diffusion. These findings highlight the potential of MB-derived AC as a promising electrode material for high-voltage energy storage applications.
KW - Activated carbon;Electric double-layer capacitor;Marine biomass;Mesopore
DO - 10.1007/s42823-024-00854-7
ER -
Choi Jueun, Ideta Keiko, Yi Hyeonseok, Kato Toru, Saito Koji, Watanabe Hiroko, Nakabayashi Koji, Miyawaki Jin, Kim Yoong Ahm and Yoon Seong-Ho. (2025). Marine biomass-derived activated carbon as an electrode material for electric double-layer capacitors. Carbon Letters, 35(3), 1221-1233.
Choi Jueun, Ideta Keiko, Yi Hyeonseok, Kato Toru, Saito Koji, Watanabe Hiroko, Nakabayashi Koji, Miyawaki Jin, Kim Yoong Ahm and Yoon Seong-Ho. 2025, "Marine biomass-derived activated carbon as an electrode material for electric double-layer capacitors", Carbon Letters, vol.35, no.3 pp.1221-1233. Available from: doi:10.1007/s42823-024-00854-7
Choi Jueun, Ideta Keiko, Yi Hyeonseok, Kato Toru, Saito Koji, Watanabe Hiroko, Nakabayashi Koji, Miyawaki Jin, Kim Yoong Ahm, Yoon Seong-Ho "Marine biomass-derived activated carbon as an electrode material for electric double-layer capacitors" Carbon Letters 35.3 pp.1221-1233 (2025) : 1221.
Choi Jueun, Ideta Keiko, Yi Hyeonseok, Kato Toru, Saito Koji, Watanabe Hiroko, Nakabayashi Koji, Miyawaki Jin, Kim Yoong Ahm, Yoon Seong-Ho. Marine biomass-derived activated carbon as an electrode material for electric double-layer capacitors. 2025; 35(3), 1221-1233. Available from: doi:10.1007/s42823-024-00854-7
Choi Jueun, Ideta Keiko, Yi Hyeonseok, Kato Toru, Saito Koji, Watanabe Hiroko, Nakabayashi Koji, Miyawaki Jin, Kim Yoong Ahm and Yoon Seong-Ho. "Marine biomass-derived activated carbon as an electrode material for electric double-layer capacitors" Carbon Letters 35, no.3 (2025) : 1221-1233.doi: 10.1007/s42823-024-00854-7
Choi Jueun; Ideta Keiko; Yi Hyeonseok; Kato Toru; Saito Koji; Watanabe Hiroko; Nakabayashi Koji; Miyawaki Jin; Kim Yoong Ahm; Yoon Seong-Ho. Marine biomass-derived activated carbon as an electrode material for electric double-layer capacitors. Carbon Letters, 35(3), 1221-1233. doi: 10.1007/s42823-024-00854-7
Choi Jueun; Ideta Keiko; Yi Hyeonseok; Kato Toru; Saito Koji; Watanabe Hiroko; Nakabayashi Koji; Miyawaki Jin; Kim Yoong Ahm; Yoon Seong-Ho. Marine biomass-derived activated carbon as an electrode material for electric double-layer capacitors. Carbon Letters. 2025; 35(3) 1221-1233. doi: 10.1007/s42823-024-00854-7
Choi Jueun, Ideta Keiko, Yi Hyeonseok, Kato Toru, Saito Koji, Watanabe Hiroko, Nakabayashi Koji, Miyawaki Jin, Kim Yoong Ahm, Yoon Seong-Ho. Marine biomass-derived activated carbon as an electrode material for electric double-layer capacitors. 2025; 35(3), 1221-1233. Available from: doi:10.1007/s42823-024-00854-7
Choi Jueun, Ideta Keiko, Yi Hyeonseok, Kato Toru, Saito Koji, Watanabe Hiroko, Nakabayashi Koji, Miyawaki Jin, Kim Yoong Ahm and Yoon Seong-Ho. "Marine biomass-derived activated carbon as an electrode material for electric double-layer capacitors" Carbon Letters 35, no.3 (2025) : 1221-1233.doi: 10.1007/s42823-024-00854-7
