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采用水热法结合电化学聚合技术在泡沫镍上生长聚吡咯包覆的CoMoO_4纳米片自组装多孔柱阵列。通过XRD、FTIR和SEM分析产物的组成与结构,发现产物呈现聚吡咯包覆CoMoO_4纳米片自组装多孔柱阵列的复合结构。通过恒流充放电、循环伏安法研究CoMoO_4的超电容性能,在电流密度为100mA·g~(-1)的条件下,包覆CoMoO_4的比电容为1205F·g~(-1);在200mA·g~(-1)充放电循环3000次后,比电容值仍保持为初始值的85.7%,是未包覆CoMoO_4材料的1.6倍,聚吡咯包覆CoMoO_4纳米片自组装多孔柱阵列具有良好的赝电容特性和循环稳定性。
The polypyrrole coated CoMoO 4 nanosheet self-assembly porous column arrays were grown on nickel foam by a combination of hydrothermal method and electrochemical polymerization. The composition and structure of the product were analyzed by XRD, FTIR and SEM. It was found that the product exhibited the composite structure of polypyrrole coated CoMoO 4 nanosheet self-assembled porous column array. The supercapacitance of CoMoO_4 was investigated by cyclic voltammetry with constant current charge and discharge. The specific capacitance of CoMoO_4 was 1205F · g -1 under the current density of 100mA · g -1. After 3000 cycles of charging and discharging at 200mA · g -1, the specific capacitance still remained at 85.7% of the original value, which was 1.6 times that of CoMoO_4. The polypyrrole-coated CoMoO_4 nanosheet self-assembled porous column array has Good pseudocapacitance and cycle stability.