Revealing the Highly Catalytic Performance of Spinel CoMn 2 O 4 for Toluene Oxidation: Involvement and Replenishment of Oxygen Species Using In Situ Designed-TP Techniques
Dalian University of Technology · Dalian Institute of Chemical Physics · +1 more institution
Abstract
The catalytic oxidation of toluene to CO2 and H2O over nanoflower spinel CoMn2O4, synthesized by the oxalic acid sol-gel method has been investigated, and it demonstrates lower activation energy (35.5 kJ/mol) for toluene oxidation compared with that using the metal oxides (Co3O4, MnOx and Co3O4/MnOx), which shows nearly 100% conversion of toluene at 220 degrees C in the presence or absence of water vapor (2.0 vol %). Compared with the metal oxides (Co3O4/MnO MnOx, and Co3O4), the obtained spinel CoMn2O4 has a larger surface area, rich cationic vacancy, and high mobility of oxygen species, which are the reasons for its high activity for toluene oxidation. The different oxygen species shows the different role in…
Citation impact
- FWCI
- 19.09
- Percentile
- 100%
- References
- 55
Authors
6Topics & keywords
- Spinel
- Catalysis
- Toluene
- Oxygen
- Inorganic chemistry
- Chemistry
- Catalytic oxidation
- Materials science