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Facile Fabrication of Macroscopic Self-Standing Ni or Co-doped MnO2 Architectures as Catalysts for Propane Oxidation

by Long Chen 1,2 and Xiping Song 1,*
1
State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China
2
Beijing Institute of Metrology, Beijing 100029, China
*
Author to whom correspondence should be addressed.
Technologies 2019, 7(4), 81; https://doi.org/10.3390/technologies7040081
Received: 17 October 2019 / Revised: 7 November 2019 / Accepted: 8 November 2019 / Published: 11 November 2019
(This article belongs to the Special Issue Reviews and Advances in Materials Processing)
The fabrication of macroscopic self-standing architectures plays a key role in the practical applications of nanomaterials. A facile strategy to assemble MnO2 nanowires into macroscopic self-standing architectures via hydrothermal reaction followed by ambient pressure drying was developed. The obtained sample was robust and showed excellent mechanical strength with a Young’s modulus of 127 MPa, which had the possibility for practical applications. In order to promote the catalytic activity for propane oxidation, Ni or Co doping into MnO2 was studied. The results showed that the obtained macroscopic self-standing Ni-MnO2 and Co-MnO2 architectures exhibited enhanced catalytic activities for propane oxidation. Specifically, the conversions of propane over Co-MnO2 and Ni-MnO2 samples at 400 °C were 27.3% and 25.7% higher than that over pristine MnO2 sample. View Full-Text
Keywords: macroscopic self-standing architectures; Ni-doped MnO2; Co-doped MnO2; propane oxidation; mechanical properties macroscopic self-standing architectures; Ni-doped MnO2; Co-doped MnO2; propane oxidation; mechanical properties
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MDPI and ACS Style

Chen, L.; Song, X. Facile Fabrication of Macroscopic Self-Standing Ni or Co-doped MnO2 Architectures as Catalysts for Propane Oxidation. Technologies 2019, 7, 81.

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