Moarrefi, mohammad Saeed, Jacob, Mohan, Shah, Nilay, Skinner, Stephen, Cai, Weiwei, and Fan, Liyuan (2025) Comparison of steam and dry reforming adsorption kinetics in solid oxide fuel cells. Fuel, 338 (15 May 2025). 134413.

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Abstract

Internal steam reforming (SRM) and dry reforming of methane (DRM) within solid oxide fuel cells offer significant potential for zero-carbon energy production. This study explores how electrochemical reactions influence reforming kinetics, which is crucial for designing fuel cell materials under various conditions. The research examines how gas composition, process temperature, and current draw from the fuel cell impact methane reforming adsorption kinetics. Both processes inside solid oxide fuel cells have been studied individually under varying conditions and anode materials, leaving a significant research gap in understanding electrochemical interactions’ impact on catalytic behavior within a unified fuel cell framework. Findings indicate that increasing methane-to- H2O and CO2 ratio decreases methane conversion. Both processes show higher methane conversion with increased current density drawn from the fuel cell. In comparison, SRM achieves greater methane conversion than DRM under equal methane concentration in the feed stream. SRM also produces more hydrogen than DRM inside the fuel cell. Reforming reaction rates increase with fuel cell temperature, and DRM consumes methane slower than SRM. Higher methane concentration in the feed and current density boost reaction rates. The reaction order for H2O is generally higher than CO2 in Langmuir–Hinshelwood model but lower than CH4. Both processes show reduced activation energy when current is drawn, with current density affecting H2O adsorption enthalpy more than CO2. The SRM model estimates activation energy more accurately, while the DRM model has an R2 value close to 0.95, indicating acceptable accuracy.

Item ID:	90475
Item Type:	Article (Research - C1)
ISSN:	1873-7153
Copyright Information:	© 2025 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
Date Deposited:	12 Feb 2026 02:20
FoR Codes:	40 ENGINEERING > 4004 Chemical engineering > 400402 Chemical and thermal processes in energy and combustion @ 50% 40 ENGINEERING > 4004 Chemical engineering > 400403 Chemical engineering design @ 25% 40 ENGINEERING > 4004 Chemical engineering > 400404 Electrochemical energy storage and conversion @ 25%
SEO Codes:	17 ENERGY > 1703 Energy storage, distribution and supply > 170305 Energy systems and analysis @ 25% 17 ENERGY > 1707 Processing of energy sources > 170701 Biomass processing @ 50% 17 ENERGY > 1705 Environmentally sustainable energy activities > 170501 Management of gaseous waste from energy activities (excl. greenhouse gases) @ 25%
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