The focus of this study was on the preparation of porous bio-based matrix with a view to fabricating the environment-friendly supercapacitors from two sustainable materials, cellulose acetate (CA) and chitosan (CS). The strategy used is, first preparing a tri-hybrid of rGO/NiO/Fe₃O₄ (rNF) particles followed by mixing it into CA/CS (CC), as prepared CC/rNF was then dipped into aniline. After the impregnation by aniline, the polymerization proceeded to get a CA/CS/PANI/rNF (CCPRNF) electrode. The prepared electrode shows excellent properties such as high conductivity (7.1 × 10^–2 S/cm), an areal capacitance of 16.61 mF/cm² at a scan rate of 5 mV/s and 88% capacitance retention after 1000 cycles. The symmetric device fabricated from 15% CCPRNF achieved areal capacitance of 5.5 mF/cm² (scan rate 20 mV/s). Herein, we suggest a new approach for the construction of environment-friendly, flexible, conducting, 3D scaffold-like porous electrodes for supercapacitors using CA/CS through simple “phase inversion and in-situ polymerization method”.

Graphic abstract

These slides can be retrieved under Electronic Supplementary Material.

中文翻译：

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基于PVA凝胶电解质的醋酸纤维素-壳聚糖基柔性3D支架状多孔膜的超级电容器应用

这项研究的重点是多孔生物基基质的制备，以期用两种可持续材料醋酸纤维素（CA）和壳聚糖（CS）来制造环保型超级电容器。所使用的策略是，首先制备rGO / NiO / Fe ₃ O ₄（rNF）颗粒的三杂化物，然后将其混合到CA / CS（CC）中，然后将制备的CC / rNF浸入苯胺中。用苯胺浸渍后，聚合进行以得到CA / CS / PANI / rNF（CCPRNF）电极。制备的电极显示出优异的性能，例如高电导率（7.1×10 ^–2 S / cm），面积电容为16.61 mF / cm ²1000次循环后，扫描速率为5 mV / s，电容保持率为88％。由15％CCPRNF制成的对称器件实现了5.5 mF / cm ^2的面电容（扫描速率为20 mV / s）。本文中，我们提出了一种新的方法，通过简单的“相转化和原位聚合方法”，使用CA / CS构建用于超级电容器的环保，柔性，导电，3D支架状多孔电极。

图形摘要

这些幻灯片可以在“电子补充材料”下找到。