Silica-Assisted Pt1/Ceo2 Single-Atom Catalyst for Enhancing the Catalytic Combustion Performance of Vocs by Inducing H2o Activation

Published: Jan. 1, 2024

Due to the competitive adsorption of water and reactants at active sites, especially toxicity platinum-based single-atom catalysts, it is great importance improve low-temperature activity resistance for catalytic combustion benzene. In this work, was found that constructing a SiO2 shell layer on catalyst not only "immobilized" Pt single atoms, but also effectively weakened H2O sites. The comprehensive characterization results demonstrated participation molecules in oxidation reaction benzene could be promoted by enhancing strong metal-support interactions (SMSI) core-shell interface, which would change electronic structure surface. As result, Pt1/CeO2@SiO2-4 with Pt-O-Si interface exhibits good (T = 190 oC) as well excellent under wet condition (10 vol%).

Language: Английский

Catalytic oxidation of volatile organic compounds over supported noble metal and single atom catalysts: A review

Journal of Environmental Sciences, Journal Year: 2024, Volume and Issue: 155, P. 858 - 888

Published: Nov. 9, 2024

Language: Английский