Coupling Nonthermal Plasma with V₂O₅/TiO₂ Nanofiber Catalysts for Enhanced Oxidation of Ethyl Acetate

Wu, Jinfei, Zhu, Xinbo, Cai, Yuxiang, Tu, Xin ORCID: 0000-0002-6376-0897 and Gao, Xiang (2019) Coupling Nonthermal Plasma with V₂O₅/TiO₂ Nanofiber Catalysts for Enhanced Oxidation of Ethyl Acetate. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 58 (1). pp. 2-10.

Text 20181115 IECR.pdf - Author Accepted Manuscript Download (4MB)

Abstract

Plasma-catalytic oxidation of ethyl acetate was conducted in a dielectric barrier discharge (DBD) reactor. The effect of novel nanofiber catalysts (nano-V 5 Ti and nano-TiO 2 ) and corresponding bulk catalysts on the plasma-catalytic process was investigated and compared with using plasma alone. The combination of plasma and nano-V 5 Ti catalyst significantly showed the best plasma-catalytic oxidation performance. Catalyst characterization showed that nano-V 5 Ti possessed smaller crystalline size and higher relative concentration of surface adsorbed oxygen (O ads ) species compared to the bulk catalysts, which played a key role in the enhanced oxidation of ethyl acetate and its intermediates on the catalyst surfaces. Compared to the bulk catalysts, the formation of more reduced vanadium species (V 4+ ) in the nano-V 5 Ti catalysts indicated the presence of more oxygen vacancies on the nano-V 5 Ti surface, which in turn improved the reducibility of nano-V 5 Ti and facilitated surface oxygen species activation in the plasma region and contributed to the plasma-catalytic oxidation reactions.

Item Type:	Article
Depositing User:	Symplectic Admin
Date Deposited:	26 Nov 2018 10:19
Last Modified:	13 Oct 2023 21:16
DOI:	10.1021/acs.iecr.8b03829
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3029066