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Morphology-controlled synthesis and microwave absorption properties of β-MnO2 microncube with rectangular pyramid.
- Source :
-
Materials Characterization . Feb2016, Vol. 112, p206-212. 7p. - Publication Year :
- 2016
-
Abstract
- β-MnO 2 microncube is a novel morphology of microncube with rectangular pyramid. It has been synthesized for the first time via a simple aqueous chemical route under hydrothermal conditions without any templates. When the reaction time is increased from 1 h to 10 h, the crystal type changed from γ-MnO 2 to β-MnO 2 and the morphology changed from an urchin-like shape to a microncube with rectangular pyramid. We propose a possible growth mechanism for intrinsic structural growth mechanism, the evolution process of the β-MnO 2 structure is proposed to involve two main stages. Besides, the electromagnetic properties of the synthesized β-MnO 2 were investigated. It shows that β-MnO 2 has certain dielectric loss properties and an effective absorption bandwidth (reflection loss lower than − 10 dB) of 3.5 GHz was achieved from the β-MnO 2 /paraffin wax composite. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10445803
- Volume :
- 112
- Database :
- Academic Search Index
- Journal :
- Materials Characterization
- Publication Type :
- Academic Journal
- Accession number :
- 112389860
- Full Text :
- https://doi.org/10.1016/j.matchar.2015.12.024