Catalytic Oxidation of Chlorobenzene over HSiW/CeO₂ as a Co-Benefit of NO_x Reduction: Remarkable Inhibition of Chlorobenzene Oxidation by NH₃.

ABSTRACT: There is an urgent need to develop novel and high-performance catalysts for chlorinated volatile organic compound oxidation as a co-benefit of NO_x. In this work, HSiW/CeO₂ was used for chlorobenzene (CB) oxidation as a co-benefit of NO_x reduction and the inhibition mechanism of NH₃ was explored. CB oxidation over HSiW/CeO₂ primarily followed the Mars-van-Krevelen mechanism and the Eley-Rideal mechanism, and the CB oxidation rate was influenced by the concentrations of surface adsorbed CB, Ce⁴⁺ ions, lattice oxygen species, gaseous CB, and surface adsorbed oxygen species. NH₃ not only strongly inhibited CB adsorption onto HSiW/CeO₂, but also noticeably decreased the amount of lattice oxygen

SUBMITTER: Dong L 

PROVIDER: S-EPMC10890138 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature