Catalytic ozone oxidation of benzene at low temperature over MnOx/Al-SBA-16 catalyst.
The low-temperature catalytic ozone oxidation of benzene was investigated. In this study, Al-SBA-16 (Si/Al = 20) that has a three-dimensional cubic Im3m structure and a high specific surface area was used for catalytic ozone oxidation for the first time. Two different Mn precursors, i.e., Mn acetate and Mn nitrate, were used to synthesize Mn-impregnated Al-SBA-16 catalysts. The characteristics of these two catalysts were investigated by instrumental analyses using the Brunauer-Emmett-Teller method, X-ray diffraction, X-ray photoelectron spectroscopy, and temperature-programmed reduction. A higher catalytic activity was exhibited when Mn acetate was used as the Mn precursor, which is attributed to high Mn dispersion and a high degree of reduction of Mn oxides formed by Mn acetate than those formed by Mn nitrate.
Graduate School of Energy and Environmental System Engineering, University of Seoul, Seoul 130-743, South Korea. catalica@uos.ac.kr.
Jong Hwa
JH
Park
Ji Man
JM
Kim
Mingshi
M
Jin
Jong-Ki
JK
Jeon
Seung-Soo
SS
Kim
Sung Hoon
SH
Park
Sang Chai
SC
Kim
Young-Kwon
YK
Park