Catalytic oxidation of 1,2-dichloroethane over three-dimensional ordered meso-macroporous Co3O4/La0.7Sr0.3Fe0.5Co0.5O3: Destruction route and mechanism

Abstract

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Catalytic removal of 1,2-dichloroethane over LaSrMnCoO6/H-ZSM-5 composite: insights into synergistic effect and pollutant-destruction mechanism

“…It can be observed that the CO2 selectivity clearly increases along with the increasing reaction temperature, while CO selectivity decreases at high temperature (>400 °C) as CO would be the further oxidized to CO2 at ele-vated temperatures in the presence of active oxygen species. 24 The selectivity of HCl increases to 60% with increasing tem-perature, similar to CO2 selectivity. Notably, Cl2 selectivity ap-pears to be stable below 400 °C but significantly increases above 400 °C, suggesting that the Deacon reaction (2HCl(g) + 0.5O2 → H2OIJg) + Cl2IJg)) occurs when the temperature is higher than 400 °C, promoting the formation of Cl2.…”

Recent Advances in the Catalytic Oxidation of Volatile Organic Compounds: A Review Based on Pollutant Sorts and Sources

“…809 For the supported Co3O4 catalysts, the activity depends mainly on the nature of the support and the metal oxide-support interactions. 810 De Rivas et al 811 synthesized a series of Co3O4 catalysts using varuous routes, and found that catalyst prepared by the precipitation method, with a particle size of 10 nm, gave the highest activity. This was found to be higher than that of the supported noble-metal catalysts for 1,2-DCE oxidation.…”

Removal of NO by catalytic decomposition of vaporized H2O2 over Mo–Fe/TiO2 catalyst

“…In particular, the deconvolution of the O 1s XPS spectrum with three different peaks is shown in Fig. 4(d), which could be divided into three kinds of oxygen species: lattice oxygen (529.6 ± 0.1 eV, designated as O β ), surface‐adsorbed oxygen (531.4 ± 0.1 eV, designated as O α ) and surface adsorbed water (533.0 ± 0.1 eV, designated as O γ ) 24,25 . It was believed that surface‐adsorbed oxygen had higher mobility and was more likely to desorb from the surface to form oxygen vacancies, so the higher ratio of O α /O β represented a higher probability of forming oxygen vacancies.…”