Copper vanadate material as well as preparation method and electrochemical performance thereof
A technology of copper vanadate and synthesis method, applied in electrochemical generators, inorganic chemistry, vanadium compounds, etc., to achieve the effect of low equipment requirements
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Embodiment 1
[0028] In a 250ml three-necked flask, add 55.85 g of choline chloride and 72.0 g of urea, melt at 80°C, and cool to room temperature. Continue to add Cu(NO 3 ) 2 .3H 2 7.25 g of O, 1.17 g of ammonium metavanadate, and 0.037 g of ammonium fluoride were first stirred at 50°C for half an hour to fully dissolve the raw materials, then the temperature was raised to 180°C and kept for 72 h to stop the reaction. Filter, wash 5 times with water and 1 time with ethanol to obtain a dark green solid. The solid was dried at 100°C for 12 h to obtain a copper vanadate material, denoted as CuVO-1.
Embodiment 2
[0030] In a 250ml three-necked flask, add 27.93 g of choline chloride and 36.0 g of urea, melt at 80°C, and cool to room temperature. Continue to add CuSO 4 .5H 2 O 1.25 g, sodium metavanadate 1.22 g, stirred at 50 °C for half an hour to fully dissolve the raw materials, then raised the temperature to 100 °C, kept for 5 h, and stopped the reaction. Filter, wash 5 times with water and 1 time with ethanol to obtain a dark green solid. The solid was dried at 100°C for 12 h to obtain a copper vanadate material, denoted as CuVO-2.
Embodiment 3
[0032] In a 250 ml three-neck flask, add [Bmim]Br 87.68 g, Cu(NO 3 ) 2 .3H 2 7.25 g of O, 1.17 g of ammonium metavanadate, and 0.037 g of ammonium fluoride were first stirred at 50°C for half an hour to fully dissolve the raw materials, then the temperature was raised to 180°C and kept for 5 h to stop the reaction. Filter, wash 5 times with water and 1 time with ethanol to obtain a dark green solid. The solid was dried at 100°C for 12 h to obtain a copper vanadate material, denoted as CuVO-3.
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