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Enhancing CO2 plasma conversion using metal grid catalysts

Author
Abstract

The synergy between catalysis and plasma chemistry often enhances the yield of chemical reactions in plasma-driven reactors. In the case of CO2 splitting into CO and O2, no positive synergistic effect was observed in earlier studies with plasma reactors, except for dielectric barrier discharges, that do not have a high yield and a high efficiency. Here, we demonstrate that introducing metal meshes into radio frequency-driven plasma reactors increases the relative reaction yield by 20%–50%, while supported metal oxide catalysts in the same setups have no effect. We attribute this to the double role of the metal mesh, which acts both as a catalyst for direct CO2 dissociation as well as for oxygen recombination.

Year of Publication
2021
Journal
Journal of Applied Physics
Volume
129
Issue
5
Number of Pages
053306
Date Published
02/2021
DOI
10.1063/5.0033212
PId
ec07d98d610ce10b6c97376a154834fc
Alternate Journal
J. Appl. Phys.
Label
OA
Attachment
Journal Article
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