Electrified reforming of methane and carbon dioxide over structured Ni/MgO-CeO2/FeCrAl wire catalyst

Jinghao Li, Xin Cui, Yihong Yu, Liu Qu, Yinglei Liu, Yujuan Wen, Gaowu Qin and Song Li

Renewable Energy, 2025, vol. 242, issue C

Abstract: The valorization of greenhouse gases, such as CO2 and CH4, through renewable energy is a pressing imperative. Dry reforming of methane (DRM) offers a promising route to convert these gases into valuable syngas, but its endothermic nature poses significant challenges. This study develops a novel Ni/MgO-CeO2/FeCrAl wire catalyst that enables electrification and in situ heating of the reactive center for the DRM reaction. The synergistic interaction between MgO and CeO2 was utilized to enhance DRM performance by promoting CO2 adsorption and oxygen transfer. Under an applied power input of 50 W (∼820 °C), a 2-m-long Ni/MgO-CeO2/FeCrAl wire catalyst achieves exceptional conversions of both CO2 (97.5 %) and CH4 (96.5 %), with H2/CO ratio approaching unity (0.99), outperforming its counterparts operating under conventional heating conditions. The electrified “in situ heating” approach employed in this work enables a rapid temperature response. Furthermore, the Ni/MgO-CeO2/FeCrAl catalyst exhibits superior coking resistance, reducing carbon deposition by over 70 % compared to conventional external heating modes. This research offers a promising avenue for the electrification of chemical processes, contributing to decarbonization in critical industries such as metallurgy and chemical engineering.

Keywords: Dry reforming of methane; Electrothermal catalysis; Chemical electrification (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:242:y:2025:i:c:s0960148125001156

DOI: 10.1016/j.renene.2025.122453

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