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Efficient CO2 methanation using nickel nanoparticles supported mesoporous carbon nitride catalysts

Article scientifique 2023 Anglais

Résumé

Abstract The CO 2 methanation technique not only gives a solution for mitigating CO 2 emissions but can also be used to store and convey low-grade energy. The basic character and large surface area of mesoporous carbon nitride, (MCN), are considered promising properties for the methanation of CO 2 . So, a series (5–20 wt.%) of Ni-doped mesoporous carbon nitride catalysts were synthesized by using the impregnation method for CO 2 methanation. the prepared catalysts were characterized by several physicochemical techniques including XRD, BET, FT-IR, Raman spectroscopy, TEM, TGA analysis, Atomic Absorption, H 2 -TPR, and CO 2 -TPD. The catalytic performance was investigated at ambient pressure and temperature range (200–500 °C) using online Gas chromatography system. The prepared catalysts showed good performance where 15%Ni/MCN exhibited the best catalytic conversion and methane yield with 100% methane selectivity at 450 °C for investigated reaction conditions.

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Refaat, Z., Saied, M., Naga, A., Shaban, S., Hassan, H., Shehata, M., Kady, F. (2023). Efficient CO2 methanation using nickel nanoparticles supported mesoporous carbon nitride catalysts. https://doi.org/10.1038/s41598-023-31958-1

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Auteur(s)

Zakaria Refaat Mohamed El Saied Ahmed O. Abo El Naga Seham A. Shaban H.B. Hassan Mohamed R. Shehata Fathy Y. El Kady

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