Abstract Reduced graphene oxide nanofiber (rGONF) modified by anthraquinone-1,5-disulfonate (AQDS) (AQDS-rGONF) was prepared by one-step hydrothermal reaction, and nanocilia-like polyaniline (PANI) grew uniformly on the surface of rGONF under the guidance of AQDS as a starting point of polymerization to fabricate successfully PANI/AQDS-rGONF composite. The results showed that PANI/AQDS-rGONF composite had a larger specific capacitance of 511 F/g than PANI/rGONF composite of 360 F/g or PANI of 312 F/g at a current density of 8 mA/cm2, and a greater electrochemical stability with the specific capacitance retention of 82.4% than PANI/rGONF of 63.2% or PANI of 52.2% after 2000 cycles, which were closely related to the synergistic effects of special nanocilia-like structure, large specific surface area, rGONF as a supporting skeleton and AQDS as a “bridge”. In addition, an asymmetric supercapacitor based on PANI/AQDS-rGONF composite as cathode was assembled, which exhibited a high energy density of 17.9 Wh/kg at a power density of 907 W/kg.

中文翻译：

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AQDS 引导纳米纤毛状聚苯胺在石墨烯纳米纤维上的生长作为高性能不对称超级电容器的阴极材料

摘要 通过一步水热反应制备了蒽醌-1,5-二磺酸盐（AQDS）修饰的还原氧化石墨烯纳米纤维（rGONF）（AQDS-rGONF），纳米纤毛状聚苯胺（PANI）在rGONF表面均匀生长。 AQDS 的指导作为聚合的起点，以成功制造 PANI/AQDS-rGONF 复合材料。结果表明，在 8 mA/cm2 的电流密度下，PANI/AQDS-rGONF 复合材料的比电容为 511 F/g，比 PANI/rGONF 复合材料的 360 F/g 或 PANI 的 312 F/g 更大，并且具有更大的比电容。 2000 次循环后比电容保持率为 82.4% 比 PANI/rGONF 为 63.2% 或 PANI 为 52.2%，这与特殊的纳米纤毛状结构、大比表面积的协同作用密切相关，rGONF 作为支撑骨架，AQDS 作为“桥梁”。此外，组装了基于 PANI/AQDS-rGONF 复合材料作为阴极的不对称超级电容器，在 907 W/kg 的功率密度下表现出 17.9 Wh/kg 的高能量密度。