Abstract Nowadays, the flexible electric-power sources such as supercapacitors (SCs) have attracted increasing attention. Graphene fibers, graphene film and graphene hydrogel have been widely applied as flexible electrode materials for SCs. However, it is still a big challenge to produce large-scale graphene based flexible electrodes. In this work, we novelly coated the reduced graphene oxide (rGO) nanosheets on the commercial compressed non-woven towel (CNWT), a super hydrophilic non-woven cotton fabric material, through a facile repeated “dyeing and drying” method. The rGO coated CNWT (G/CNWT) performed excellent flexibility, stability and reasonable conductivity. Purposefully, the OH-functionalized graphene quantum dots (OH-GQDs) were inserted between the graphene nanosheets and the OH-GQDs and rGO co-coated CNWT (GG/CNWT) displayed better electrochemical performance. Furthermore, homogenous polyaniline (PANI) nanoparticles were electrodeposited on the GG/CNWT (PGG/CNWT) for high areal capacitance (Ca) SCs. Finally, the electrochemical performances of G/CNWT, GG/CNWT and PGG/CNWT based electrodes were investigated and analyzed under a conventional three-electrode test. The Ca of PGG/CNWT reached to 195 m F cm−2 at 0.1 mA cm−2 and showed excellent electrochemical stabilities with a high capacity retention of 96.5 % after 6000 cycles at a current density of 5 mA cm-2. Our work showed that the super hydrophilic CNWT could be a newly flexible supporting substrate for fabricating the rGO-functionalized textile electrode. In addition, the current simple and easy to scale-up method for fabricating the PGG/CNWT electrode made it used in flexible and wearable electronics as well as other applications.

中文翻译：

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用于可穿戴储能的PANI/石墨烯量子点/石墨烯共涂层压缩无纺布毛巾

摘要 如今，超级电容器（SCs）等柔性电源越来越受到人们的关注。石墨烯纤维、石墨烯薄膜和石墨烯水凝胶已广泛用作 SCs 的柔性电极材料。然而，生产大规模石墨烯基柔性电极仍然是一个很大的挑战。在这项工作中，我们通过简单的重复“染色和干燥”方法将还原氧化石墨烯（rGO）纳米片涂覆在商用压缩无纺毛巾（CNWT）上，这是一种超亲水无纺棉织物材料。rGO 涂层 CNWT (G/CNWT) 表现出优异的柔韧性、稳定性和合理的导电性。有目的地，OH 功能化的石墨烯量子点（OH-GQDs）被插入到石墨烯纳米片之间，OH-GQDs 和 rGO 共包覆的 CNWT（GG/CNWT）表现出更好的电化学性能。此外，均质聚苯胺 (PANI) 纳米颗粒电沉积在 GG/CNWT (PGG/CNWT) 上以获得高面积电容 (Ca) SC。最后，在常规三电极测试下研究和分析了基于 G/CNWT、GG/CNWT 和 PGG/CNWT 的电极的电化学性能。PGG/CNWT 的 Ca 在 0.1 mA cm-2 下达到 195 m F cm-2 并显示出优异的电化学稳定性，在 5 mA cm-2 的电流密度下循环 6000 次后容量保持率为 96.5%。我们的工作表明，超亲水 CNWT 可以作为一种新的柔性支撑基底，用于制造 rGO 功能化的纺织电极。