Efficient CO 2 methanation using nickel nanoparticles supported mesoporous carbon nitride catalysts.

Autor: Refaat Z; Catalysis Department, Refining Division, Egyptian Petroleum Research Institute, Nasr City, 11727, Cairo, Egypt.; Chemistry Department, Faculty of Science, Cairo University, Giza, Egypt., Saied ME; Catalysis Department, Refining Division, Egyptian Petroleum Research Institute, Nasr City, 11727, Cairo, Egypt. melsaiedepri88@gmail.com., Naga AOAE; Catalysis Department, Refining Division, Egyptian Petroleum Research Institute, Nasr City, 11727, Cairo, Egypt., Shaban SA; Catalysis Department, Refining Division, Egyptian Petroleum Research Institute, Nasr City, 11727, Cairo, Egypt., Hassan HB; Chemistry Department, Faculty of Science, Cairo University, Giza, Egypt., Shehata MR; Chemistry Department, Faculty of Science, Cairo University, Giza, Egypt. mrshehata@sci.cu.edu.eg., Kady FYE; Catalysis Department, Refining Division, Egyptian Petroleum Research Institute, Nasr City, 11727, Cairo, Egypt.
Jazyk: angličtina
Zdroj: Scientific reports [Sci Rep] 2023 Mar 24; Vol. 13 (1), pp. 4855. Date of Electronic Publication: 2023 Mar 24.
DOI: 10.1038/s41598-023-31958-1
Abstrakt: 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.
(© 2023. The Author(s).)
Databáze: MEDLINE
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