Nanosize control on porous β-MnO2 and their catalytic activity in CO oxidation and N2O decomposition
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A major challenge in the synthesis of porous metal oxides is the control of pore size and/or wall thickness that may affect the performance of these materials. Herein, nanoporous β-MnO2 samples were prepared using different hard templates, e.g., ordered mesoporous silica SBA-15 and KIT-6, disordered mesoporous silica, and colloidal silica. These samples were characterized by Powder X-Ray Diffraction (PXRD), Transmission Electron Microscopy (TEM), and N2 adsorption-desorption. The pore size distribution of β-MnO2 was tuned by the different hard templates and their preparation details. Catalytic activities in CO oxidation and N2O decomposition were tested and the mesoporous β-MnO2 samples demonstrated superior catalytic activities compared with their bulk counterpart.
Ren , Y , Ma , Z & Dai , S 2014 , ' Nanosize control on porous β-MnO 2 and their catalytic activity in CO oxidation and N 2 O decomposition ' , Materials , vol. 7 , no. 5 , pp. 3547-3556 . https://doi.org/10.3390/ma7053547
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