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Hydrothermal preparation of nanostructured MnO2 and morphological and crystalline evolution

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Frontiers of Chemistry in China

Abstract

Manganese dioxides with various morphologies were prepared using a common hydrothermalmethod without any templates or additives. The evolution of the morphology was accompanied by the gradual conversion of the polymorphic forms from γ-type to β-type. Meanwhile, MnO2 microspheres, urchin-like nanostructures and nanowires were successfully synthesized. The products were characterized by X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscope and transmission electron microscope. The evolution process can be explained by the Ostwald Ripening mechanism.

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Correspondence to Tiehong Chen.

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Translated from Chinese Journal of Chinese Universities 28(7): 1223–1226 [译自: 高等学校化学学报]

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Li, Y., Zhou, X., Zhou, H. et al. Hydrothermal preparation of nanostructured MnO2 and morphological and crystalline evolution. Front. Chem. China 3, 128–132 (2008). https://doi.org/10.1007/s11458-008-0024-1

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  • DOI: https://doi.org/10.1007/s11458-008-0024-1

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