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MnO2 with various nanostructures was prepared by a facile hydrothermal method. X-ray diffraction (XRD), scanning electron microscope (SEM) and transmission electron microscope (TEM) together recorded the composition and structure evolution during the entire produce process by adjusting the amount-of-substance concentration of precursors. It was found that the wormlike MnO2 nanospheres evolved toward...
The CuO and Ta 2 O 5 -doped SnO 2 system was obtained by conventional ceramics processing. The ceramic phases of samples was analyzed by X-ray diffraction (XRD) and the microstructure by means of scanning electron microscopy (SEM). The electrical field of a single phase of CuO and Ta 2 O 5 -doped SnO 2 system was studied as a function of current density...
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