Plasma‐catalytic CO 2 methanation over NiO/bentonite catalysts prepared by solution combustion synthesis

Abstract A solution combustion synthesis (SCS) process to prepare nickel catalyst over bentonite (NiO/Ben) is reported. Compared to the traditional impregnation method, NiO/ben produced by SCS has smaller nickel particle size and higher dispersion. With a metal loading of 20 wt%, the afforded NiO/Be...

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Bibliographic Details
Published in:Plasma processes and polymers 2024-07, Vol.21 (7)
Main Authors: Tang, Shouxian, Qin, Shiji, Wang, Zhengduo, Sang, Lijun, Cheng, Jiushan, Liu, Zhongwei
Format: Article
Language:English
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Summary:Abstract A solution combustion synthesis (SCS) process to prepare nickel catalyst over bentonite (NiO/Ben) is reported. Compared to the traditional impregnation method, NiO/ben produced by SCS has smaller nickel particle size and higher dispersion. With a metal loading of 20 wt%, the afforded NiO/Ben demonstrates excellent catalytic activity for CO 2 methanation in a dielectric barrier discharge reactor. In certain discharge conditions (H 2 :CO 2 ratio of 5 in feed gas, discharge input power of 45 W, and gas hourly space velocity of 11 320 h − 1 ), CO 2 conversion and CH 4 selectivity are as high as 55.8% and 84.6%, respectively. Under the conditions of plasma configuration, the strong interaction between the nickel species and the support plays an important role in the CO 2 methanation process.
ISSN:1612-8850
1612-8869
DOI:10.1002/ppap.202400001