Preparation and application of a graphene/polyionic liquid-based carbon material
A polyionic liquid, graphene technology, applied in the direction of electrode shape/type, electrolysis components, electrodes, etc., can solve the problem of low catalytic activity
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Embodiment 1
[0031] The preparation of embodiment 1, GC-6
[0032] Dissolve PCMVImTf2N and GO in an appropriate amount of DMSO at a mass ratio of 6:1, and sonicate for 30 min to form a homogeneous solution; transfer the solution to a petri dish, dry at 80 °C for 4 h, and remove the solvent DMSO by volatilization to obtain Solid composite; soak the dried solid composite in an ammonia solution with a mass concentration of 0.2% for 2 h, take out the solution and dry it naturally to obtain a precursor material; then place the precursor material in a tube furnace, argon As an inert gas, first raise the temperature from room temperature to 300°C for 1 hour at a heating rate of 3°C / min, then raise the temperature from 300°C to 1000°C for 1 hour at a heating rate of 3°C / min; finally cool naturally to room temperature to obtain composite carbon Material GC-6.
[0033] The specific surface area of GC-6 is 588.43 m2g -1 . At a current density of 10 mA cm -2 , the overpotentials were 327mV. In ad...
Embodiment 2
[0034] The preparation of embodiment 2, GC-7
[0035] Dissolve PCMVImTf2N and GO in an appropriate amount of DMSO at a mass ratio of 7:1, and sonicate for 30 min to form a uniform solution; transfer the solution to a petri dish, dry at 80 °C for 4 h, and remove the solvent DMSO by volatilization to obtain Solid composite; soak the dried solid composite in an ammonia solution with a mass concentration of 0.2% for 2 h, take out the solution and dry it naturally to obtain a precursor material; then place the precursor material in a tube furnace, argon As an inert gas, first raise the temperature from room temperature to 300°C for 1 hour at a heating rate of 3°C / min, then raise the temperature from 300°C to 1000°C for 1 hour at a heating rate of 3°C / min; finally cool naturally to room temperature to obtain composite carbon Material GC-7.
[0036] The surface area of GC-7 is 723.61 m2g -1 . At a current density of 10 mA cm -2 , its overpotential is 112 mV. In addition, the T...
Embodiment 3
[0037] The preparation of embodiment 3, GC-8
[0038] Dissolve PCMVImTf2N and GO in an appropriate amount of DMSO at a mass ratio of 8:1, and sonicate for 30 min to form a uniform solution; transfer the solution to a petri dish, dry at 80 °C for 4 h, and remove the solvent DMSO by volatilization to obtain Solid composite; soak the dried solid composite in an ammonia solution with a mass concentration of 0.2% for 2 h, take out the solution and dry it naturally to obtain a precursor material; then place the precursor material in a tube furnace, argon As an inert gas, first raise the temperature from room temperature to 300°C for 1 hour at a heating rate of 3°C / min, then raise the temperature from 300°C to 1000°C for 1 hour at a heating rate of 3°C / min; finally cool naturally to room temperature to obtain composite carbon Material GC-8.
[0039] The specific surface area of GC-8 is 695.12 m2g -1 . At a current density of 10 mA cm -2 , its overpotential is 363 mV. In additi...
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