High-yield synthesis of Ce modified Fe-Mn composite oxides benefitting from catalytic destruction of chlorobenzene.

ABSTRACT: Ce-Fe-Mn catalysts were prepared by an oxalic acid assisted co-precipitation method. The influence of Ce doping and calcination temperature on the catalytic oxidation of chlorobenzene (as a model VOC molecule) was investigated in a fixed bed reactor. The Mn₃O₄ phase was formed in Ce-Fe-Mn catalysts at low calcination temperatures (<400 °C), which introduced more chemisorbed oxygen, and enhanced the mobility of O atoms, resulting in an improvement of the reduction active of Mn₃O₄ and Fe₂O₃. Additionally, CeO₂ has strong redox properties, and Ce⁴⁺ would oxidize Mn ^x+ and Fe ^x+. Therefore, the interaction of Ce, Fe and Mn can improve the content of surface chemisorbed ox

SUBMITTER: Li A 

PROVIDER: S-EPMC9050221 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature