A preparation method of a ribbon-shaped hierarchical mesoporous nickel oxide high specific capacitance electrode material
A technology for high specific capacitance and electrode materials, which is applied in the preparation of nickel oxide electrode materials and the preparation of ribbon-shaped graded mesoporous nickel oxide high specific capacitance electrode materials. problem, to achieve the effect of simple process, low cost, and reduced diffusion path
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Embodiment 1
[0028] In this example, nickel sulfate, guanidine hydrochloride and sodium chloride were used as raw materials, and mesoporous carbon was used as a template to prepare a ribbon-shaped graded mesoporous nickel oxide high specific capacitance electrode material through the template method. The specific steps are as follows:
[0029] (1) The preparation of nickel sulfate solution: be nickel sulfate according to the mass ratio of each substance: sodium chloride: water=0.0016: 0.00036: 1, be mixed with mixed solution, stir 30min, prepare the nickel sulfate solution containing sodium chloride;
[0030] (2) Preparation of guanidine hydrochloride solution: according to the mass ratio of each substance, it is guanidine hydrochloride: water=0.0024: 1, mixed into a mixed solution, stirred for 30min, and prepared into guanidine hydrochloride solution;
[0031] (3) Preparation of nickel hydroxide precursor and mesoporous carbon composite: Slowly add the guanidine hydrochloride solution prep...
Embodiment 2
[0041] In this example, nickel sulfate, guanidine hydrochloride and sodium chloride were used as raw materials, and mesoporous carbon was used as a template to prepare a ribbon-shaped graded mesoporous nickel oxide high specific capacitance electrode material through the template method. The specific steps are as follows:
[0042] (1) The preparation of nickel sulfate solution: be nickel sulfate according to the mass ratio of each substance: sodium chloride: water=0.0033: 0.00073: 1, be mixed with mixed solution, stir 30min, prepare the nickel sulfate solution containing sodium chloride;
[0043] (2) Preparation of guanidine hydrochloride solution: according to the mass ratio of each substance, it is guanidine hydrochloride: water=0.0048: 1, mixed into a mixed solution, stirred for 30min, and prepared into guanidine hydrochloride solution;
[0044] (3) Preparation of nickel hydroxide precursor and mesoporous carbon composite: Slowly add the guanidine hydrochloride solution prep...
Embodiment 3
[0048] In this example, nickel sulfate, guanidine hydrochloride and sodium chloride were used as raw materials, and mesoporous carbon was used as a template to prepare a ribbon-shaped graded mesoporous nickel oxide high specific capacitance electrode material through the template method. The specific steps are as follows:
[0049] (1) The preparation of nickel sulfate solution: be nickel sulfate according to the mass ratio of each substance: sodium chloride: water=0.0066: 0.0015: 1, be mixed with mixed solution, stir 30min, prepare the nickel sulfate solution containing sodium chloride;
[0050] (2) Preparation of guanidine hydrochloride solution: according to the mass ratio of each substance, it is guanidine hydrochloride: water=0.0096: 1, mixed into a mixed solution, stirred for 30min, and prepared into guanidine hydrochloride solution;
[0051] (3) Preparation of nickel hydroxide precursor and mesoporous carbon composite: Slowly add the guanidine hydrochloride solution prepa...
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