Catalytic Properties of Nanoporous Manganese Oxides in Decomposition of High-Purity Hydrogen Peroxide

다국어 초록 (Multilingual Abstract)

<P>Highly nanoporous manganese oxides, such as meso-MnO2 and meso-Mn2O3, are synthesized using nanoporous silica KIT-6 as a hard template via nano-replication method. Manufactured ordered nanoporous materials exhibit significant properties, such as large and uniform pore sizes, high surface area and pore volume, and well-defined pore topologies. The catalytic performance of the synthesized materials during the repetitive decomposition of hydrogen peroxide is also examined in a specially-designed pulse-injection reactor. In comparison of catalytic decomposition of high-purity hydrogen peroxide, the decomposition activity of nanoporous MnO2 was better than that of bulk MnO2, which can be attributed to larger surface area of nanoporous MnO2 than that of bulk MnO2. It was confirmed that nanoporous MnO2 is a better catalyst in terms of its catalyst life in comparison with nanoporous Mn2O3.</P>