Preparation method of metal nano-particles coated with graphene modified conductive polymer gel
A technology of metal nanoparticles and conductive polymers, applied in circuits, electrical components, battery electrodes, etc., can solve problems affecting battery cycle performance, affecting electron transmission in electrode materials, low conductivity and mechanical properties, and achieving good electronic performance. Effects of ion transport capability, good cycling stability, good repeatability and stability
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[0026] Example 1:
[0027] Add 58mg of tin-nickel nanoparticles into 2mL of 1mg / mL graphene oxide aqueous solution, and ultrasonically disperse them evenly. Then, add 60 μL of phytic acid and 50 μL of pyrrole solution, stir and sonicate to disperse evenly. Finally, add 0.12g of ammonium persulfate to 1mL of distilled water, then add it to the solution prepared in the previous step, ultrasonicate for 30s and let it stand for 8min to make pyrrole polymerize completely, then wash with distilled water for 2-3 times, and then freeze Dry to prepare graphene-modified conductive polymer gel-coated tin-nickel nanoparticles.
[0028] The graphene-modified conductive polymer gel coated tin-nickel nanoparticles prepared in this example has a three-dimensional porous structure, the particles are scattered in the graphene sheet and the gel, and the polypyrrole gel is closely connected with the graphene sheet. The cycle stability of the material is poor, and the capacity drops to 300mAh / g ...
Example Embodiment
[0029] Example 2:
[0030] Add 70mg of tin-nickel nanoparticles into 1mL of 2mg / mL graphene oxide aqueous solution, and ultrasonically disperse them evenly. Then, add 70 μL of phytic acid and 60 μL of pyrrole solution, stir and sonicate to disperse evenly. Finally, add 0.13g of ammonium persulfate to 1mL of distilled water, then add it to the solution prepared in the previous step, and let it stand for 8 minutes after ultrasonication for 30s to complete the polymerization of pyrrole, then wash with distilled water for 2-3 times, and then freeze Dry to prepare graphene-modified conductive polymer gel-coated tin-nickel nanoparticles.
[0031] The graphene-modified conductive polymer gel coated tin-nickel nanoparticles prepared in this example has a three-dimensional porous structure, the particles are scattered in the graphene sheet and the gel, and the polypyrrole gel is closely connected with the graphene sheet. The cycle stability of the material is poor, and the capacity d...
Example Embodiment
[0032] Example 3:
[0033] Add 65mg of tin-nickel nanoparticles into 2mL of 1mg / mL graphene oxide aqueous solution, and ultrasonically disperse them evenly. Then, add 50 μL of phytic acid and 50 μL of pyrrole solution, stir and sonicate to disperse evenly. Finally, add 0.12g of ammonium persulfate to 1mL of distilled water, then add it to the solution prepared in the previous step, ultrasonicate for 30s and let it stand for 15min to make pyrrole polymerize completely, then wash with distilled water for 2-3 times, and then freeze Dry to prepare the graphene-modified conductive polymer gel-coated tin-nickel nanoparticles.
[0034] The graphene-modified conductive polymer gel coated tin-nickel nanoparticles prepared in this example has a three-dimensional porous structure, the particles are scattered in the graphene sheet and the gel, and the polypyrrole gel is closely connected with the graphene sheet. The cycle stability of the material is poor, and the capacity drops to 269m...
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