The electrochemical properties of a three-component composite containing polypyrrole, multiwalled carbon nanotubes and tetra(n-octyl)ammonium bromide as a binder have been investigated. The electrochemical behavior of this system depends on the relative amounts of the components within the composite. In the positive potential range, pseudo-capacitive behavior related to the polypyrrole oxidation is observed. The capacitance is enhanced due to the large surface area of the carbon nanotube substrate. Additionally, a contribution of double layer capacitance of multiwalled carbon nanotubes component leads to the capacitance increase. In consequence, high specific capacitance of approximately 600 F g⁻¹ was obtained for this material. This value is about three times higher in comparison for the polymer deposited at the surface of bare gold electrode. The presence of tetra(n-octyl)ammonium bromide enhances the electrochemical and mechanical stability of the composite. The capacitance behavior of ternary composite is also more stable during cyclic charging/discharging processes in comparison to the polypyrrole film or polypyrrole/multiwalled carbon nanotube composite.

研究了包含聚吡咯，多壁碳纳米管和四（正辛基）溴化铵作为粘合剂的三组分复合材料的电化学性能。该系统的电化学行为取决于复合物中组分的相对含量。在正电位范围内，观察到与聚吡咯氧化有关的拟电容行为。由于碳纳米管基板的大表面积而提高了电容。另外，多壁碳纳米管组分的双层电容的贡献导致电容增加。因此，大约600 F g ^-1的高比电容是为此材料获得的。与沉积在裸金电极表面的聚合物相比，该值大约高三倍。四（正辛基）溴化铵的存在增强了复合材料的电化学和机械稳定性。与聚吡咯膜或聚吡咯/多壁碳纳米管复合材料相比，三元复合材料的电容行为在循环充电/放电过程中也更稳定。