A method for controllable synthesis of carbon-coated molybdenum disulfide/polyaniline electrode material
A technology of molybdenum disulfide and polyaniline, which is applied in the manufacture of hybrid capacitor electrodes, hybrid/electric double layer capacitors, etc., can solve the problems of increasing material activity and stability, unsuitable control of the thickness of coating materials, and inability to optimize the structure of coating layers, etc. problems, to achieve the effect of excellent electrochemical performance, low cost and easy operation
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Embodiment 1
[0022] The concrete steps of this embodiment are as follows:
[0023] Step 1: Using 2 μm molybdenum disulfide powder as raw material, react with lithium ion intercalation method for 10 h, and ultrasonicate in water at 30 °C with 400 W power for 10 min, and peel off to obtain single-layer nanosheets, using 15,000 rpm high-speed centrifugation method Remove molybdenum disulfide and thick molybdenum disulfide flakes that have not been completely stripped.
[0024] Observation under the electron microscope shows that the surface of the obtained molybdenum disulfide is smooth, the thickness is about 1 nm, almost all are single layers, and the content of the conductive 1T phase is 72%.
[0025] Step 2: After mixing the prepared molybdenum disulfide and aniline monomer in a certain proportion, ammonium persulfate was used as the initiator, under acidic conditions of pH=1-5, the reaction temperature was -4 °C, and the reaction time was 20 h. Control the mass ratio of molybdenum disul...
Embodiment 2
[0031] The difference from Example 1 is:
[0032] Step 1: Use 2 μm molybdenum disulfide powder as the raw material, react with lithium ion intercalation method for 20 h, and ultrasonicate at 500 W power in ethanol for 30 min at 40 °C to obtain single-layer nanosheets, and use 12000 rpm high-speed centrifugation Methods to remove molybdenum disulfide and thick molybdenum disulfide flakes that have not been completely peeled off.
[0033] Step 2: After mixing the prepared molybdenum disulfide and aniline monomer in a certain proportion, ammonium persulfate was used as the initiator, under the acidic conditions of pH=1-5, the reaction temperature was 0 °C, the reaction time was 30 h, and the control The mass ratio of molybdenum disulfide to polyaniline is 1:20.
[0034] Observation under the electron microscope showed that polyaniline grew uniformly and vertically on the molybdenum disulfide nanosheets.
[0035] Step 3: Using glucose as a carbon source, mix it with the prepared...
Embodiment 3
[0038] The difference from Example 1 is:
[0039] Step 1: Using 2 μm molybdenum disulfide powder as raw material, react with lithium ion intercalation method for 40 h, then ultrasonicate in N-methylpyrrolidone at 600 W power for 1 h at 10 °C, peel off to obtain single-layer nanosheets, and use 8000 rpm / min high-speed centrifugation to remove molybdenum disulfide and thick molybdenum disulfide flakes that have not been completely peeled off.
[0040] Step 2: After mixing the prepared molybdenum disulfide and aniline monomer in a certain proportion, ammonium persulfate was used as the initiator, under acidic conditions of pH=1-5, the reaction temperature was -5 °C, and the reaction time was 40 h. Control the mass ratio of molybdenum disulfide to polyaniline to be 1:200.
[0041] Observation under the electron microscope showed that polyaniline grew uniformly and vertically on the molybdenum disulfide nanosheets.
[0042] Step 3: Using glucose as a carbon source, mix it with the...
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