@article{ART003046757},
author={Yun Ji Su and Kim Ji Hong and Kang Seok Chang and Im Ji Sun},
title={Mechanism of activated carbon-catalyzed methane decomposition process for the production of hydrogen and high-value carbon},
journal={Carbon Letters},
issn={1976-4251},
year={2023},
volume={33},
number={6},
pages={1799-1809},
doi={10.1007/s42823-023-00516-0}
TY - JOUR
AU - Yun Ji Su
AU - Kim Ji Hong
AU - Kang Seok Chang
AU - Im Ji Sun
TI - Mechanism of activated carbon-catalyzed methane decomposition process for the production of hydrogen and high-value carbon
JO - Carbon Letters
PY - 2023
VL - 33
IS - 6
PB - Korean Carbon Society
SP - 1799
EP - 1809
SN - 1976-4251
AB - The thermocatalytic decomposition of methane is a promising method for hydrogen production. To determine the cause of carbonaceous catalyst deactivation and to produce high-value carbon, methane decomposition behavior and deactivated catalysts were analyzed. The surface properties and crystallinity of a commercial activated carbon material, MSP20, used as a methane decomposition catalyst, varied with the reaction time at a reaction temperature of 900 °C. During the initial reaction, MSP20 provided a methane conversion of ≥ 50%; however, the catalyst exhibited rapid deactivation as crystalline carbon grew at surface defects; after 15 min of reaction, approximately 33% methane conversion was maintained. With increasing reaction time, the specific surface area of the catalyst decreased, whereas crystallinity increased. The R-square value of the conversion–crystallinity relationship was significantly higher than that of the conversion–specific surface area relationship; however, neither profile was linear. The activity of the activated carbon catalyst for methane decomposition is mainly determined by the complex actions of the specific surface area and defect sites. The activity was maintained after an initial sharp decline caused by the continuous growth of crystalline carbon product. This study presents the application of carbonaceous catalysts for the decomposition reaction of methane to form COx-free hydrogen, while simultaneously yielding porous carbon materials with an improved electrical conductivity.
KW - Activated carbon Methane decomposition Hydrogen Mechanism High-value carbon
DO - 10.1007/s42823-023-00516-0
ER -
Yun Ji Su, Kim Ji Hong, Kang Seok Chang and Im Ji Sun. (2023). Mechanism of activated carbon-catalyzed methane decomposition process for the production of hydrogen and high-value carbon. Carbon Letters, 33(6), 1799-1809.
Yun Ji Su, Kim Ji Hong, Kang Seok Chang and Im Ji Sun. 2023, "Mechanism of activated carbon-catalyzed methane decomposition process for the production of hydrogen and high-value carbon", Carbon Letters, vol.33, no.6 pp.1799-1809. Available from: doi:10.1007/s42823-023-00516-0
Yun Ji Su, Kim Ji Hong, Kang Seok Chang, Im Ji Sun "Mechanism of activated carbon-catalyzed methane decomposition process for the production of hydrogen and high-value carbon" Carbon Letters 33.6 pp.1799-1809 (2023) : 1799.
Yun Ji Su, Kim Ji Hong, Kang Seok Chang, Im Ji Sun. Mechanism of activated carbon-catalyzed methane decomposition process for the production of hydrogen and high-value carbon. 2023; 33(6), 1799-1809. Available from: doi:10.1007/s42823-023-00516-0
Yun Ji Su, Kim Ji Hong, Kang Seok Chang and Im Ji Sun. "Mechanism of activated carbon-catalyzed methane decomposition process for the production of hydrogen and high-value carbon" Carbon Letters 33, no.6 (2023) : 1799-1809.doi: 10.1007/s42823-023-00516-0
Yun Ji Su; Kim Ji Hong; Kang Seok Chang; Im Ji Sun. Mechanism of activated carbon-catalyzed methane decomposition process for the production of hydrogen and high-value carbon. Carbon Letters, 33(6), 1799-1809. doi: 10.1007/s42823-023-00516-0
Yun Ji Su; Kim Ji Hong; Kang Seok Chang; Im Ji Sun. Mechanism of activated carbon-catalyzed methane decomposition process for the production of hydrogen and high-value carbon. Carbon Letters. 2023; 33(6) 1799-1809. doi: 10.1007/s42823-023-00516-0
Yun Ji Su, Kim Ji Hong, Kang Seok Chang, Im Ji Sun. Mechanism of activated carbon-catalyzed methane decomposition process for the production of hydrogen and high-value carbon. 2023; 33(6), 1799-1809. Available from: doi:10.1007/s42823-023-00516-0
Yun Ji Su, Kim Ji Hong, Kang Seok Chang and Im Ji Sun. "Mechanism of activated carbon-catalyzed methane decomposition process for the production of hydrogen and high-value carbon" Carbon Letters 33, no.6 (2023) : 1799-1809.doi: 10.1007/s42823-023-00516-0