Benzene Oxidation with Ozone Over MnO(x)/MSU-H and MnO(x)/Mesoporous-SAPO-34 Catalysts.
Two mesoporous silica materials, MSU-H and mesoporous SAPO-34 (Meso-SAPO-34), were applied to the catalytic oxidation with ozone of benzene. The catalysts were characterized by X-ray diffraction, N2 adsorption-desorption, Brunauer-Emmett-Teller specific surface area, and H2-temperature programmed reduction. When MnO(x)/MSU-H was used at three different temperature, 50 degrees C, 80 degrees C, and 100 degrees C, the ozone conversion and CO(x) yield increased with increasing temperature. MnO(x)/MSU-H exhibited much higher catalytic activity than that of MnO(x)/Meso-SAPO-34. The high catalytic activity of MnO(x)/MSU-H seems to be due to the high oxygen ability and structural stability of MSU-H. The CO2 yield was somewhat enhanced by the addition of steam because steam facilitated desorption of the reaction intermediates adsorbed on the catalyst surface, enabling them to be oxidized further.
Hyung Bum
HB
An
Sung Hoon
SH
Park
Sung Hwa
SH
Jhurng
Jong Soo
JS
Jurng
Gwi-Nam
GN
Bae
Jong-Ki
JK
Jeon
Young-Kwon
YK
Park