State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, 2999 North Renmin Road, Shanghai 201620, China.
State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, 2999 North Renmin Road, Shanghai 201620, China.
Int J Biol Macromol. 2021 Jun 30;181:1063-1071. doi: 10.1016/j.ijbiomac.2021.04.112. Epub 2021 Apr 20.
Fiber electrodes are the main functional elements of flexible and textile-based storage devices. This study proposes a Polypyrrole (PPy) and MXene composite, grown on cotton fiber, as a high capacitance electrode. Pyrrole (Py) and MXene are processed and deposited along with an in-situ polymerization. The mass and areal capacitance of the assembled (PPy/MXene)@Cotton electrode respectively reach to 506.6 F g, at current density of 1 A g and 455.9 mF cm at scan rate of 0.9 mA cm. These values outperform the PPy@Cotton fiber electrode, around 45.8% and 119% respectively. As-prepared fiber electrodes with mechanical strength of 107.3 MPa and conductivity of 60.8 S/m, offer intriguing application prospects in the field of weaving and flexible fibrous supercapacitors.
纤维电极是柔性和基于纺织的存储设备的主要功能元件。本研究提出了一种聚吡咯（PPy）和 MXene 复合材料，生长在棉纤维上，作为高电容电极。吡咯（Py）和 MXene 经过处理并沉积，同时进行原位聚合。组装的（PPy/MXene）@棉电极的质量和比电容分别达到 506.6 F g-1，在电流密度为 1 A g-1时，在扫描速率为 0.9 mA cm-2时达到 455.9 mF cm-2。这些值分别超过了 PPy@棉纤维电极，约为 45.8%和 119%。具有 107.3 MPa 机械强度和 60.8 S/m 电导率的制备纤维电极，在编织和柔性纤维超级电容器领域具有诱人的应用前景。
