Plasma-enhanced catalytic activation of CO₂ in a modified gliding arc reactor

Zhang, Hao, Li, Li, Xu, Ruiyang, Huang, Jingying, Wang, Ni, Li, Xiaodong and Tu, Xin ORCID: 0000-0002-6376-0897 (2020) Plasma-enhanced catalytic activation of CO₂ in a modified gliding arc reactor. WASTE DISPOSAL & SUSTAINABLE ENERGY, 2 (2). pp. 139-150.

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Abstract

<jats:title>Abstract</jats:title><jats:p>For the first time, this paper demonstrates a synergistic effect from the combination of a gliding arc discharge plasma with a photocatalyst TiO<jats:sub>2</jats:sub> for CO<jats:sub>2</jats:sub> dissociation. The effects of adding a tray downstream the discharge and the combination of the catalyst with plasma have been investigated. Two different combination modes of plasma catalysis, i.e<jats:italic>.</jats:italic>, in-plasma catalysis and post-plasma catalysis, have been evaluated with the emphasis on the analysis of potential mechanisms. The results show that modifying the gliding arc reactor by the addition of a tray can enhance the fraction of gas treated by plasma, thus improving the reaction performance. An exceptional synergistic effect of combining the gliding arc discharge with TiO<jats:sub>2</jats:sub> for CO<jats:sub>2</jats:sub> activation forms in the in-plasma catalysis mode. The presence of TiO<jats:sub>2</jats:sub> significantly enhances the CO<jats:sub>2</jats:sub> conversion by 138% and the energy efficiency by 133% at a flow rate of 2 L/min. The plasma activation effect, which produces energetic electrons that can create the electron–hole pairs on the catalyst surface, is believed to be the major contributor to the generation of the plasma catalysis synergy. This mechanism has been further evidenced by the negligible influence of the post-plasma catalysis on the reaction performance.</jats:p>

Item Type:	Article
Uncontrolled Keywords:	CO2 activation, Plasma catalysis, TiO2, Synergistic effect
Depositing User:	Symplectic Admin
Date Deposited:	08 Jan 2021 15:49
Last Modified:	17 Oct 2023 07:19
DOI:	10.1007/s42768-020-00034-z
Open Access URL:	https://link.springer.com/article/10.1007/s42768-0...
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3112350

Available Versions of this Item

• Plasma-enhanced catalytic activation of CO2 in a modified gliding arc reactor. (deposited 02 Mar 2020 10:36)
  • Plasma-enhanced catalytic activation of CO₂ in a modified gliding arc reactor. (deposited 08 Jan 2021 15:49) [Currently Displayed]