摘要

Nanometer MnO2 materials with different polymorphs & morphologies were prepared under hydrothermal conditions by reacting of KMnO4 and MnCl2 with various salts. The structure and morphology of the resultant products were characterized by using XRD, FESEM, TEM, HRTEM and Selected-Area Electron Diffraction (SAED). The results show that both of the polymorph and the morphology are affected by the salt modifiers.