@article{ART003241470},
author={Saidova Nodira Urol Kizi and Yang So Yeong and Kim Jae Hoon and Siddiqui Shaikh Shayan and Lee Soo Hong and Im Ji Sun},
title={Fuel-driven design of NiOx/AlOx catalysts for methane decomposition through tuning of metal-support interaction},
journal={Carbon Letters},
issn={1976-4251},
year={2025},
volume={35},
number={3},
pages={1045-1054},
doi={10.1007/s42823-024-00856-5}
TY - JOUR
AU - Saidova Nodira Urol Kizi
AU - Yang So Yeong
AU - Kim Jae Hoon
AU - Siddiqui Shaikh Shayan
AU - Lee Soo Hong
AU - Im Ji Sun
TI - Fuel-driven design of NiOx/AlOx catalysts for methane decomposition through tuning of metal-support interaction
JO - Carbon Letters
PY - 2025
VL - 35
IS - 3
PB - Korean Carbon Society
SP - 1045
EP - 1054
SN - 1976-4251
AB - As the demand for sustainable hydrogen (H₂) production grows, catalytic decomposition of methane (CDM) has emerged as a CO2-free pathway for H2 generation, producing valuable multi-walled carbon nanotubes (MWCNTs) as byproducts. This study examines the role of fuel type in shaping the properties and performance of NiOx/AlOx catalysts synthesized via solution combustion synthesis (SCS). Catalysts prepared with citric acid, urea, hexamethylenetetramine (HMTA), and glycine exhibited varying NiO nanoparticle (NP) sizes and dispersions. Among them, the HMTA catalyst achieved the highest Ni dispersion (~ 3.2%) and specific surface area (21.6 m2/gcat), attributed to vigorous combustion facilitated by its high pH and amino-group-based fuel. Catalytic tests showed comparable activation energy (55.7–59.7 kJ/mol) across all catalysts, indicating similar active site formation mechanisms. However, the HMTA catalyst demonstrated superior CH4 conversion (~ 68%) and stability, maintaining performance for over 160 min under undiluted CH₄, while others deactivated rapidly. MWCNT characterization revealed consistent structural properties, such as graphitization degree and electrical conductivity, across all catalysts, emphasizing that fuel type influenced stability rather than MWCNT quality. H2 temperature-programmed reduction (H2-TPR) analysis identified moderate metal-support interaction (MSI) in the HMTA catalyst as a key factor for optimizing stability and active site utilization. These findings underscore the importance of fuel selection in SCS to control MSIs and dispersion, offering a strategy to enhance catalytic performance in CDM and other thermocatalytic applications.
KW - Catalytic methane decomposition;Solution combustion synthesis;Multi-walled carbon nanotube;Hydrogen;Metal-support interaction
DO - 10.1007/s42823-024-00856-5
ER -
Saidova Nodira Urol Kizi, Yang So Yeong, Kim Jae Hoon, Siddiqui Shaikh Shayan, Lee Soo Hong and Im Ji Sun. (2025). Fuel-driven design of NiOx/AlOx catalysts for methane decomposition through tuning of metal-support interaction. Carbon Letters, 35(3), 1045-1054.
Saidova Nodira Urol Kizi, Yang So Yeong, Kim Jae Hoon, Siddiqui Shaikh Shayan, Lee Soo Hong and Im Ji Sun. 2025, "Fuel-driven design of NiOx/AlOx catalysts for methane decomposition through tuning of metal-support interaction", Carbon Letters, vol.35, no.3 pp.1045-1054. Available from: doi:10.1007/s42823-024-00856-5
Saidova Nodira Urol Kizi, Yang So Yeong, Kim Jae Hoon, Siddiqui Shaikh Shayan, Lee Soo Hong, Im Ji Sun "Fuel-driven design of NiOx/AlOx catalysts for methane decomposition through tuning of metal-support interaction" Carbon Letters 35.3 pp.1045-1054 (2025) : 1045.
Saidova Nodira Urol Kizi, Yang So Yeong, Kim Jae Hoon, Siddiqui Shaikh Shayan, Lee Soo Hong, Im Ji Sun. Fuel-driven design of NiOx/AlOx catalysts for methane decomposition through tuning of metal-support interaction. 2025; 35(3), 1045-1054. Available from: doi:10.1007/s42823-024-00856-5
Saidova Nodira Urol Kizi, Yang So Yeong, Kim Jae Hoon, Siddiqui Shaikh Shayan, Lee Soo Hong and Im Ji Sun. "Fuel-driven design of NiOx/AlOx catalysts for methane decomposition through tuning of metal-support interaction" Carbon Letters 35, no.3 (2025) : 1045-1054.doi: 10.1007/s42823-024-00856-5
Saidova Nodira Urol Kizi; Yang So Yeong; Kim Jae Hoon; Siddiqui Shaikh Shayan; Lee Soo Hong; Im Ji Sun. Fuel-driven design of NiOx/AlOx catalysts for methane decomposition through tuning of metal-support interaction. Carbon Letters, 35(3), 1045-1054. doi: 10.1007/s42823-024-00856-5
Saidova Nodira Urol Kizi; Yang So Yeong; Kim Jae Hoon; Siddiqui Shaikh Shayan; Lee Soo Hong; Im Ji Sun. Fuel-driven design of NiOx/AlOx catalysts for methane decomposition through tuning of metal-support interaction. Carbon Letters. 2025; 35(3) 1045-1054. doi: 10.1007/s42823-024-00856-5
Saidova Nodira Urol Kizi, Yang So Yeong, Kim Jae Hoon, Siddiqui Shaikh Shayan, Lee Soo Hong, Im Ji Sun. Fuel-driven design of NiOx/AlOx catalysts for methane decomposition through tuning of metal-support interaction. 2025; 35(3), 1045-1054. Available from: doi:10.1007/s42823-024-00856-5
Saidova Nodira Urol Kizi, Yang So Yeong, Kim Jae Hoon, Siddiqui Shaikh Shayan, Lee Soo Hong and Im Ji Sun. "Fuel-driven design of NiOx/AlOx catalysts for methane decomposition through tuning of metal-support interaction" Carbon Letters 35, no.3 (2025) : 1045-1054.doi: 10.1007/s42823-024-00856-5
