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Nanosize Control on Porous β-MnO2 and Their Catalytic Activity in CO Oxidation and N2O Decomposition

by Yu Ren 1,2,*, Zhen Ma 3,4,* and Sheng Dai 4
1
National Institute of Clean-and-low-carbon Energy, Beijing 102211, China
2
School of Chemistry and EaStChem, University of St Andrews, St Andrews, Fife KY 16 9ST, UK
3
Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China
4
Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
*
Authors to whom correspondence should be addressed.
Materials 2014, 7(5), 3547-3556; https://doi.org/10.3390/ma7053547
Received: 1 February 2014 / Revised: 27 March 2014 / Accepted: 29 April 2014 / Published: 6 May 2014
(This article belongs to the Special Issue Advances in Nanoporous Materials)
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. View Full-Text
Keywords: mesoporous; pyrolusite; CO oxidation; N2O decomposition; textural properties mesoporous; pyrolusite; CO oxidation; N2O decomposition; textural properties
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MDPI and ACS Style

Ren, Y.; Ma, Z.; Dai, S. Nanosize Control on Porous β-MnO2 and Their Catalytic Activity in CO Oxidation and N2O Decomposition. Materials 2014, 7, 3547-3556.

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