Abstract
Highly ordered mesoporous metal oxides (meso-MO x ) such as CeO2, Co3O4, Cr2O3, Mn2O3, NiO, RuO2, SnO2 and TiO2 were successfully synthesized using mesoporous silica KIT-6 as a hard template via the nano-replication method. The physicochemical properties of as-prepared meso-MO x were characterized by scanning electron microscopy, X-ray diffraction, N2 adsorption–desorption and temperature programmed techniques. Their catalytic behavior toward H2O2 decomposition was investigated and compared with the corresponding bulk metal oxides (bulk-MO x ) synthesized by the conventional precipitation method. These meso-MO x materials exhibited much higher catalytic activities than their bulk counterparts. In particular, meso-Mn2O3 and meso-RuO2 showed high activities, while meso-SnO2 resulted in no activity toward H2O2 decomposition. The overall conversion of H2O2 followed a general order: Mn2O3 > RuO2 > Co3O4 > CeO2 > NiO > Cr2O3 > TiO2 > SnO2.
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This research was supported by the Priority Research Centers (2011-0031392) program and the WCU (World Class University, R31-2008-10029) program through the National Research Foundation of Korea funded by the Ministry of Education, Science and Technology.
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Jin, M., Park, JN., Shon, J.K. et al. Highly ordered crystalline mesoporous metal oxides for hydrogen peroxide decomposition. J Porous Mater 20, 989–995 (2013). https://doi.org/10.1007/s10934-013-9678-2
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DOI: https://doi.org/10.1007/s10934-013-9678-2