Heterostructural conductive polymer with multi-dimensional carbon materials for capacitive energy storage

作者：Wang, Yeye; Liu, Guoqiang; Liu, Youfa; Yang, Jiaji; Liu, Peipei; Jiang, Qinglin; Jiang, Fengxing; Liu, Congcong^*; Ding, Wenjun^*; Xu, Jingkun^*

来源：Applied Surface Science, 2021, 558: 149910.

DOI：10.1016/j.apsusc.2021.149910

• Heterostructure
• Conductive polymer
• Multi-dimensional carbon materials
• Electrode materials
• Supercapacitor

The rapid development of flexible smart electronics upgrades the renewal of energy storage equipment, especially supercapacitors. Conductive polymers (CPs) with easily regulative structures are expected to apply in supercapacitors as excellent electrode materials. In this work, composite materials systems based on a single high-conductivity CP, poly (3, 4-ethylenedioxythiophene):polystyrenesulfonate (PEDOT:PSS), are used to explore the effect of structural regulation on the capacitive performance by compositing with multi-dimensional carbon materials (0D C-60, 1D SWCNT, and 2D rGO). Benefited from the structural regulation of multidimensional carbon materials, composite films show improved capacitance performance, especially PEDOT: PSS/rGO film reveals 1.25 times improved specific capacitance value and a good rate capability (similar to 97.8%). This study provides a feasible reference for the design and optimization of CP-based composites for supercapacitors.

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