Preparation method of modified molybdenum trioxide electrode material
A molybdenum trioxide and electrode material technology, applied in the field of electrochemical energy storage, can solve the problems of weak electron transfer rate, limitation, poor rate performance of capacitors, etc., and achieve excellent rate performance, increase infiltration and migration, and increase electron transfer rate. Effect
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Embodiment 1
[0031]Weigh 0.192g of molybdenum powder and add it to 3.2mL of 30% hydrogen peroxide solution, stir continuously in an ice bath to a transparent orange-yellow solution, then add 36.8mL of deionized water to dilute the above solution, and continue to stir for 30 minutes; add 0.32 gP123, heat and dissolve to a transparent solution; transfer the above solution into a 100 mL tetrafluoroethylene liner, put it into a stainless steel autoclave, and keep it at 200 °C for 24 h; after natural cooling, suction filtration, and wash with deionized water and ethanol respectively A new type of modified molybdenum trioxide material was prepared by precipitation and drying, named BMO@P.
Embodiment 2
[0035] Weigh 0.192g of molybdenum powder and add it to 3.2mL of 30% hydrogen peroxide solution, stir continuously in an ice bath to a transparent orange-yellow solution, then add 36.8mL of deionized water to dilute the above solution, and continue to stir for 30 minutes; add 0.32 gP123, heat and dissolve to a transparent solution; transfer the above solution into a 100 mL tetrafluoroethylene liner, put it into a stainless steel autoclave, and keep it at 180 °C for 20 h; after natural cooling, suction filtration, and wash with deionized water and ethanol respectively Precipitation and drying to obtain modified molybdenum trioxide material.
[0036] It was made into an electrode sheet according to the above method, and its electrochemical performance was tested. The BMO@P electrode was scanned at a scan rate of 5 mV s -1 The specific capacitance value at 101.2 F g -1 (688.2 mF cm -2 ).
Embodiment 3
[0038] Weigh 0.192g of molybdenum powder and add it to 3.2 mL of 30% hydrogen peroxide solution, stir continuously in an ice bath to a transparent orange-yellow solution, then add 36.8 mL of deionized water to dilute the above solution, and continue stirring for 30 minutes; add 0.40 gP123, heat and dissolve to a transparent solution; transfer the above solution into a 100 mL tetrafluoroethylene liner, put it into a stainless steel autoclave, and keep it at 200 °C for 24 h. After natural cooling, suction filtration, washing the precipitate with deionized water and ethanol respectively, and drying, to obtain the modified molybdenum trioxide material.
[0039] It was made into an electrode sheet according to the above method, and its electrochemical performance was tested. The BMO@P electrode was scanned at a scan rate of 5 mV s -1 The specific capacitance value at 104.2 F g -1 (698.1 mF cm -2 ).
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