Rational designation of electromagnetic interface for low-temperature CO2 reforming CH4

Jin Chen; Shuangyong Su; Chunqi Wang; Hangyu Duan; Zhen Xu; Hongpeng Jia

doi:10.1016/j.jes.2024.12.011

Rational designation of electromagnetic interface for low-temperature CO₂ reforming CH₄

J Environ Sci (China). 2025 Nov:157:769-781. doi: 10.1016/j.jes.2024.12.011. Epub 2024 Dec 19.

Authors

Jin Chen¹, Shuangyong Su², Chunqi Wang², Hangyu Duan², Zhen Xu³, Hongpeng Jia⁴

Affiliations

¹ Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China; College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
² Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
³ Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China.
⁴ Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China; College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China. Electronic address: hpjia@iue.ac.cn.

PMID: 40602922
DOI: 10.1016/j.jes.2024.12.011

Abstract

CO₂ and CH₄ as major causes of global warming could both be eliminated to produce syngas under mild conditions through dry reforming methane driven by electromagnetic induction heating (EMIH-controlled DRM). Using EMIH-configured characterization and density functional theory, it is shown that the EMIH-induced negative electric field at the electromagnetic interface facilitates CO₂ dissociation and atomic oxygen transfer, which is the source of the promoting effect of EMIH. By employing pure H₂ in a one-step high-temperature reduction process, the interfacial effect between the NiMgAl compound and the Fe fiber could be improved, thereby increasing the influence of the EMIH-induced electric field. Consequently, the R-NiMgAl/Fe fiber catalyst with EMIH achieves about 90 % conversions of CH₄ and CO₂ at 500 ℃, while traditional heating-driven DRM on R-NiMgAl requires 700 ℃ to accomplish the same result.

Keywords: Carbon dioxide; Dry reforming; Electromagnetic induction heating; Methane; Syngas.

MeSH terms

Carbon Dioxide* / chemistry
Cold Temperature
Electromagnetic Fields
Electromagnetic Phenomena
Methane* / chemistry
Models, Chemical*

Substances

Carbon Dioxide
Methane