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Facile Controlled Synthesis of Manganese Oxide Hierarchical Microspheres by Hydrothermal Method
Li, D. Y.; Chen, Y. F.
Conference Name11th International Conference in Asia of the International-Union-of-Materials-Research-Societies
Source PublicationNANO-SCALE AND AMOURPHOUS MATERIALS 丛书: Materials Science Forum
Conference DateSEP 25-28, 2010
Conference PlaceQingdao, PEOPLES R CHINA
PublisherTrans Tech Publications Ltd
AbstractMnO2 hierarchical microsphere has been synthesized by a facile and direct hydrothermal reaction between KMnO4 and HCl without the aids of catalysts, surfactants or templates. The as-prepared microsphere, as characterized by x-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) analysis and nitrogen adsorption and desorption, is in form of K0.27MnO2 (H2O)(0.54), with a flower-like hierarchical microsphere structure and a BET surface area value of 52 m(2)/g. The morphology of the product can be simply tailed by controlled by reaction temperature or period and crystallinity can be modified by changing the concentrate of KMnO4. In general, excessive KMnO4 and low hydrothermal temperature are favor to forming flower-like hierarchical structure. Besides, the formation mechanisms of the hierarchical schemes are proposed.
KeywordManganese Oxide Hierarchical Microspheres Hydrothermal Method Hollow Urchins Pseudocapacitance Properties Large-scale Spheres Nanostructures Batteries Potassium Dioxide Route
Document Type会议论文
Recommended Citation
GB/T 7714
Li, D. Y.,Chen, Y. F.. Facile Controlled Synthesis of Manganese Oxide Hierarchical Microspheres by Hydrothermal Method[C]:Trans Tech Publications Ltd,2011:107-115.
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