CeO supported MOFs derived LaBFeO (B=Mn, Co) perovskite catalysts for degradation of toluene.

In this work, LaCoO and LaMnO perovskites with the higher specific surface area were synthesized using MOFs as precursor, then, the composite catalysts CeO-LaCoFeO and CeO-LaMnFeO were prepared by using CeO as support and Fe element doping LaCoO and LaMnO, respectively. The as-prepared samples were characterized by XRD, SEM, XPS, H-TPR, and N physisorption techniques. Subsequently, toluene was used as the probe molecule for volatile organic compounds (VOCs) to test the catalytic activity of these as-prepared catalysts.

Effect of A, B-site cation on the catalytic activity of LaAMnBO (A = Ce, B = Ni) perovskite-type oxides for toluene oxidation.

ABO-type perovskites (A = La, Ce; B = Mn, Ni) were prepared by sol-gel method, and applied for catalytic oxidation of toluene. The activity test results show that the activity of LaMnO can be improved when a small amount of Ce and Ni are doped into the A and B sites of LaMnO, respectively. The effects of different calcination temperatures and different calcination time on the preparation of La-based perovskites were also investigated.