Effect of calcination temperature on the oxidation of benzene with ozone at low temperature over mesoporous α-Mn2O3
- Effect of calcination temperature on the oxidation of benzene with ozone at low temperature over mesoporous α-Mn2O3
- Mingshi Jin; Jeong Wook Kim; Ji Man Kim; 정종수; 배귀남; 전종기; 박영권
- oxidation of benzene; mesoporous; α-Mn2O3; calcination temperature; Ozone; TPR
- Issue Date
- Powder technology
- VOL 214, NO 3, 458-462
- Highly ordered mesoporous α-Mn2O3 was synthesized from cubic mesoporous silica (KIT-6) via nano-casting
method. The mesoporous α-Mn2O3 thus obtained was calcined at 200–500 °C, and characterized using XRD,
N2 sorption and temperature-programmed reduction (TPR). The calcination temperature did not significantly
affect the BET surface areas, mesopore sizes, pore structures and crystallinities of the mesoporous α-Mn2O3
materials. The mesoporous α-Mn2O3 calcined at 300 °C showed the highest catalytic activity due to its
high reduction ability revealed from the TPR analysis. However, the catalytic activity was negligible without
ozone. In addition, the selectivity to CO2 was about 90% and this seems to be an advantage of mesoporous
α-Mn2O3 for removing benzene using ozone.
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