Direct deposition of hierarchal and porous nanomaterials on the substrate has a considerable interest in the development of supercapacitor electrodes due to its simple and low-cost process, the porous surface area improves the charge storage capability and the hierarchical structure capable for more electrolyte infiltration with better ion diffusion. Herein, for the first time, we demonstrated the feasibility of electrochemical polymerization of chloride ions doped (Cl) poly (3, 4-ethylenedioxythiophene) (Cl-PEDOT) porous nanostructures on graphite for supercapacitor electrodes using ferric chloride (FeCl₃) as a supporting electrolyte. The optimized deposition and cleansing process offer a well-defined porous hierarchal Cl-PEDOT nanofoam on graphite electrode with the excellent electrochemical properties. The PEDOT porous nanostructure on graphite electrode showed a maximum specific capacitance of 480 F g⁻¹ at 2 A g⁻¹ current density with an outstanding stability of ∼95% after 10,000 charge/discharge cycles in 1 M H₂SO₄. In addition, the electrodes were assembled into a symmetrical supercapacitor and displayed a maximum specific capacitance of 189 F g⁻¹ with attractive capacitance retention of ∼86% for 10,000 cycles. Furthermore, the device displayed high specific energy of 6.19 W h kg⁻¹ and specific power of 50.12 kW kg⁻¹with excellent rate capability for the higher current densities.

由于其简单且低成本的过程，将层状和多孔纳米材料直接沉积在基板上对超级电容器电极的开发具有相当大的兴趣，多孔表面积提高了电荷存储能力，并且层状结构能够更好地渗透电解质，具有更好的性能。离子扩散。在这里，我们首次展示了使用氯化铁（FeCl ₃）作为辅助电解质。优化的沉积和清洁工艺可​​在石墨电极上提供定义明确的多孔层状Cl-PEDOT纳米泡沫，并具有出色的电化学性能。石墨电极上的PEDOT多孔纳米结构在2 A g ^-1电流密度下显示最大比电容为480 F g ^-1，在1 MH ₂ SO _4中进行10,000次充电/放电循环后，具有约95％的出色稳定性。另外，将电极组装成对称的超级电容器，并在10,000次循环中显示出最大比电容为189 F g ^-1，有吸引力的电容保持率为〜86％。此外，该设备显示出6.19 W h kg ^-1的高比能50.12 kW kg ^-1的比功率，具有较高的额定速率能力，可实现更高的电流密度。