A citric acid-assisted deposition strategy to synthesize mesoporous SiO₂-confined highly dispersed LaMnO₃ perovskite nanoparticles for n-butylamine catalytic oxidation.

ABSTRACT: Catalytic oxidation can efficiently eliminate nitrogen-containing volatile organic compounds (NVOCs) and suppress the generation of toxic NO _x in order to avoid secondary pollution. In this study, mesoporous SiO₂-confined LaMnO₃ perovskite nanoparticles with high dispersion were successfully prepared by a citric acid-assisted deposition method (LMO/SiO₂-SD) and tested for the oxidation of n-butylamine. The method utilized the synergistic effect of abundant active hydroxyl groups existing on the SiO₂ gel surface and citric acid, rendering the metal ions more uniformly scattered on the SiO₂ surface. Strikingly, the LMO/SiO₂-SD sample exhibited the optimum catalytic performance (T ₉₀ a

SUBMITTER: Chen H 

PROVIDER: S-EPMC9061879 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature