Controllable Fabrication of δ-MnO2 Microspheres and α-MnO2 Nanorods

Yong Chen; Ling Li; Hui Xu; Yu Zhen Hong; Hao Yang; Jing Chun Tu; Yan Ping Ma; Jian Bao Li

doi:10.4028/www.scientific.net/AMR.284-286.450

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 284-286Controllable Fabrication of δ-MnO2 Microspheres...

Controllable Fabrication of δ-MnO₂ Microspheres and α-MnO₂ Nanorods

Abstract:

MnO₂ nanostructure was synthesized via a redox reaction of potassium permanganate in hydrochloric acid solution below 100°C at open environment. The effects of pH value in solution and reaction temperature on the crystal structure and morphology of MnO₂were investigated. It was revealed that layer folded δ-MnO₂ microspheres were obtained at low reaction temperature and low HCl concentration, whereas α-MnO₂ single-crystal nanorods were fabricated with increasing reaction temperature and HCl concentration. The possible formation mechanism of δ-MnO₂ microspheres and α-MnO₂ nanorods is suggested.

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Periodical:

Advanced Materials Research (Volumes 284-286)

Pages:

450-453

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.284-286.450

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Online since:

July 2011

Authors:

Yong Chen, Ling Li, Hui Xu, Yu Zhen Hong, Hao Yang, Jing Chun Tu, Yan Ping Ma, Jian Bao Li

Keywords:

MnO₂, Nanostructured Materials, X-Ray Diffraction (XRD)

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