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具有较高电化学性能的一种新型多孔碳化的聚苯胺包覆碳纳米管电极材料被成功的制备,它是先通过原位聚合形成聚苯胺包覆碳纳米管复合材料,然后在氩气条件下850℃碳化制得的。该电极材料在0.5A.g-1电流密度下和1mol/L H2SO4电解液中拥有209F.g-1的比电容,远高于相同条件下碳纳米管的比电容20F.g-1。这应该归因于该电极材料比表面积的提高和来自碳化聚苯胺层中氮原子掺杂诱导的赝电容效应,同时也说明了该材料在超级电容器应用中是一种比较有希望的电极材料。
A novel porous carbonized polyaniline coated carbon nanotube electrode material with high electrochemical performance was successfully prepared by first in situ polymerization to form a polyaniline coated carbon nanotube composite material and then under argon conditions Under 850 ℃ carbonized system. The electrode material has a specific capacitance of 209F.g-1 at 0.5A.g-1 current density and 1mol / L H2SO4 electrolyte, which is much higher than the specific capacitance of carbon nanotubes of 20F.g-1 under the same conditions. This should be attributed to the increase of the specific surface area of the electrode material and the pseudocapacitance effect induced by the doping of nitrogen atoms in the carbonized polyaniline layer. It also shows that the material is a promising electrode material for supercapacitor applications.