Enhanced Catalytic Performance of La-Doped CoMn 2 O 4 Catalysts by Regulating Oxygen Species Activity for VOCs Oxidation
Dalian University of Technology · Dalian Institute of Chemical Physics · +1 more institution
Abstract
Tuning the oxygen species activity of transition metal oxide catalysts is essential for harnessing environmental catalytic oxidation reactions, and the mobility of lattice oxygen and activation ability of gas oxygen over CoMn2O4 were well modulated by in situ solvothermal-induced lanthanum doping for VOCs oxidation. Lanthanum species were successfully doped into the spinel lattice, and the toluene oxidation rate of Co1Mn1.9La0.1 increased by 20.74 times compared with that of the undoped Co1Mn2 catalyst at 220 °C. With lanthanum doping, the content of oxygen vacancies was remarkably increased (1.4-fold) due to oxygen atoms in unusual bonding situations. Higher mobility and reactivity of lattice oxygen species…
Citation impact
- FWCI
- 16.50
- Percentile
- 100%
- References
- 53
Authors
5Topics & keywords
- Catalysis
- Lanthanum
- Oxygen
- Inorganic chemistry
- Spinel
- Doping
- Chemistry
- Toluene