g-C3N4 promoted DBD plasma assisted dry reforming of methane

Ray, Debjyoti and Nepak, Devadutta and Vinodkumar, T and Ch, Subrahmanyam (2019) g-C3N4 promoted DBD plasma assisted dry reforming of methane. Energy. ISSN 03605442

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The CO2 reforming of CH4 to synthesis gas is performed in a dielectric barrier discharge (DBD) plasma coupled with g-C3N4, g-C3N4/TiO2, g-C3N4/ZnO and g-C3N4/mixed oxide (2.5 wt% ZnO and 2.5 wt% TiO2) catalysts. For CH4 and CO2 gases, the highest conversion is obtained with 5 wt.% TiO2 + g-C3N4 and 5 wt.% ZnO + g-C3N4, respectively. The g-C3N4 and 5 wt.% TiO2 + g-C3N4 catalysts shows poor selectivity towards H2 and CO formation. Whereas, 5 wt.% ZnO + g-C3N4 exhibits the highest H2 and CO selectivity. However, with increasing SIE the CO selectivity decreases over 5 wt.% ZnO + g-C3N4. The selectivity towards H2 and CO are found to be optimal over 5 wt.% MO (1:1) + g-C3N4 and the combination of TiO2 + ZnO coupled with g-C3N4 significantly improves the carbon balance. This optimum performance by 5 wt.% MO (1:1) + g-C3N4 in providing the best carbon balance is due to the combination of electronic and acid-base characteristics of the catalysts. The generation of various active species is evidenced by emission spectroscopic study.

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IITH Creators:
IITH CreatorsORCiD
Ch, Subrahmanyamhttps://orcid.org/0000-0002-2643-3854
Item Type: Article
Subjects: Chemistry
Divisions: Department of Chemistry
Depositing User: Team Library
Date Deposited: 02 Jul 2019 05:40
Last Modified: 21 Jan 2020 05:36
URI: http://raiith.iith.ac.in/id/eprint/5594
Publisher URL: http://doi.org/10.1016/j.energy.2019.06.147
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