A comparative study of hydrothermal and sol–gel methods in the synthesis of MnO2 nanostructures
Abstract
In this work, MnO2 nanostructure powders with different crystalline phases have been successfully prepared by hydrothermal and sol–gel methods. The obtained products were characterized by XRD and SEM techniques and their crystallographic phases and morphological properties compared. Results showed that a-MnO2, b-MnO2, and d-MnO2 nanorods were synthesized by hydrothermal method and c-MnO2 polymorph was obtained by sol–gel method.
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