ZnV2O4 lithium storage materials and preparation method thereof
A lithium storage and nanotechnology, applied in chemical instruments and methods, vanadium compounds, inorganic chemistry, etc., can solve the problems of inapplicability to wide applications, strong selectivity, etc., and achieve stable charge-discharge cycle performance, high specific capacity, and energy saving. Effect
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Embodiment 1
[0026] 0.3 grams of zinc nitrate, 0.24 grams of ammonium metavanadate and 15 milliliters of benzyl alcohol were added to the reaction kettle with a volume of 20 milliliters, then the reaction kettle was placed in a high temperature box, and reacted at 160 ° C for 96 hours; the reaction was completed Then, the reactor was cooled to room temperature in the air, and the obtained product was washed with absolute ethanol, centrifuged and dried to obtain the final product ZnV 2 O 4 .
Embodiment 2
[0028] 6 grams of zinc nitrate, 4.7 grams of ammonium metavanadate and 15 milliliters of benzyl alcohol were added to the reaction kettle with a volume of 20 ml, then the reaction kettle was placed in a high temperature box, and reacted at 200 ° C for 24 hours; the reaction was completed Then, the reactor was cooled to room temperature in the air, and the obtained product was washed with absolute ethanol, centrifuged and dried to obtain the final product ZnV 2 O 4 .
Embodiment 3
[0030] 3 grams of zinc nitrate, 2.36 grams of ammonium metavanadate and 15 milliliters of benzyl alcohol were added to the reactor with a volume of 20 milliliters, then the reactor was placed in a high temperature box, and reacted at 180 ° C for 48 hours; the reaction was completed Then, the reactor was cooled to room temperature in the air, and the obtained product was washed with absolute ethanol, centrifuged and dried to obtain the final product ZnV 2 O 4 .
[0031] The obtained samples were subjected to scanning electron microscopy (see figure 1 ) and transmission electron microscopy (JEM-2010FEF) observations (see figure 2 ) morphology is a hollow sphere with a diameter of 1-2 μm wound by nanowires; and the prepared ZnV can be seen through high-resolution electron microscopy. 2 O 4 It is a structure in which the particles are oriented and connected, and the crystallinity is good. The obtained sample was tested by XRD (Shimadzu XRD-6000), and the diffraction pattern ...
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