A kind of mncoo2/carbon nanotube electrode material and preparation method thereof
A technology of carbon nanotubes and electrode materials, which is applied in the field of electrochemistry and nanomaterials, can solve the problems of failure to meet the basic requirements of supercapacitor electrodes, poor conductivity of manganese cobalt oxides, and low cycle stability, so as to shorten the synthesis time, Improved electrochemical properties and good dispersibility
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Embodiment 1
[0023] A MnCoO 2 The preparation method of / carbon nanotube and application thereof, comprises the following steps: first with 5mmolKMnO 4 , 1mmolCoSO 4 , 6mmolH 2 SO 4 Put 100ml of deionized water into a three-necked flask, add 0.05g of SDBS, stir at room temperature for 30min, then place in a microwave reactor for reaction, the reaction temperature is controlled at 110°C, and the reaction time is 15min. The product was naturally cooled to room temperature, filtered with suction, and the obtained material was dried at room temperature for 2 days. Secondly, the room temperature activation of carbon nanotubes: respectively soak an appropriate amount of multi-walled carbon nanotube samples in the chromic acid lotion at room temperature, heat and dissolve 2.5g of potassium dichromate in 5ml water, then slowly add 45ml98% vitriol oil, stir at a low speed 10 min, and then diluted with distilled water and then repeatedly washed by suction filtration, the obtained product was heat...
Embodiment 2
[0027] A MnCoO 2 The preparation method of / carbon nanotube and application thereof, comprises the following steps: first with 5mmolKMnO 4 , 5mmolCoSO 4 , 6mmolH 2 SO 4 Put 100ml of deionized water into a three-necked flask, add 0.1g of SDBS, stir at room temperature for 30min, then place in a microwave reactor for reaction, the reaction temperature is controlled at 110°C, and the reaction time is 30min. The product was naturally cooled to room temperature, filtered with suction, and the obtained material was dried at room temperature for 2 days. Secondly, the room temperature activation of carbon nanotubes: respectively soak an appropriate amount of multi-walled carbon nanotube samples in chromic acid lotion at room temperature, heat and dissolve 2.5g potassium dichromate in 5ml water, then slowly add 45ml98% concentrated sulfuric acid, and stir at a low speed for 20min , and then diluted with distilled water and then repeatedly washed by suction filtration, the obtained p...
Embodiment 3
[0031] A MnCoO 2 The preparation method of / carbon nanotube and application thereof, comprises the following steps: first with 5mmolKMnO 4 , 1mmolCoSO 4 , 6mmolH 2 SO 4 Put 100ml of deionized water into a three-necked flask, add 0.2g of SDBS, stir at room temperature for 30min, then place in a microwave reactor for reaction, the reaction temperature is controlled at 110°C, and the reaction time is 45min. The product was naturally cooled to room temperature, filtered with suction, and the obtained material was dried at room temperature for 2 days. Secondly, room temperature activation of carbon nanotubes: respectively soak appropriate amount of multi-walled carbon nanotube samples in chromic acid lotion at room temperature (2.5g potassium dichromate is heated and dissolved in 5ml water, then slowly add 45ml98% concentrated sulfuric acid, stir at low speed 30 min) and then diluted with distilled water and then repeatedly washed by suction filtration, and the obtained product ...
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