文献类型：期刊文献

英文题名：Aramid Nanofibers Aerogel-filled Wood-based Carbon Material for Flexible Solid Supercapacitors

作者：Niu, Qingyuan[1] Zhang, Hui[1] Gao, Kezheng[1] Tang, Qiheng[2] Sun, Xiankai[3] Zhao, Shuyan[1] Wang, Lizhen[1]

第一作者：Niu, Qingyuan

通信作者：Niu, QY[1];Wang, LZ[1]

机构：[1]Zhengzhou Univ Light Ind, Sch Mat & Chem Engn, Zhengzhou 450002, Peoples R China;[2]Chinese Acad Forestry, Res Inst Wood Ind, 1 Dongxiaofu, Beijing 100091, Peoples R China;[3]China Natl Bldg Mat Grp, 1 Guan Zhuang Dong Li, Beijing 100024, Peoples R China

年份：2022

卷号：8

期号：5

外文期刊名：CHEMNANOMAT

收录：;EI(收录号：20221411876498);Scopus(收录号：2-s2.0-85127278718);WOS:【SCI-EXPANDED(收录号:WOS:000780427400001)】；

基金：We appreciate the Young Scientists Fund of the National Natural Science Foundation of China (31800484), Fundamental research project of Henan Province's key scientific research project plan (20zx008).

语种：英文

外文关键词：Aerogel-filled wood-based carbon material; Aramid nanofibers aerogel; Energy storage; Filled by virtue of the capillary forces; The delignified wood

摘要：Delignified wood-based carbon material is a potential cost-effective and environmentally-friendly flexible electrode material. However, the abundant intertubular cavities not only endow excellent flexibility, but also inevitably deteriorate the conductivity, integrity and areal density of the delignified wood-based flexible carbon material, which is not conducive to improve the energy storage performance. In this work, an aramid nanofiber-based carbon aerogel was filled in the intertubular cavities via a series of processes, including filled by virtue of the unidirectional capillary forces, gelation, freeze-drying and carbonization. The filled carbon aerogel can significantly increase the conductivity and the sheet resistance is as low as about 28 +/- 5 omega sq(-1). The filled carbon aerogel does not deteriorate its excellent energy storage behavior derived from the unique low-tortuosity and open slender tubular microstructure. The filled carbon aerogel can improve the space utilization of the delignified wood-based carbon. The areal specific capacitance has been increased from 20.8 to 51.9 mF cm(-2) at a current density of 50 mu A cm(-2). The area specific capacitance still remains at 33.9 mF cm(-2) when the current density increased to 1000 mu A cm(-2). The aramid nanofibers aerogel-filled wood-based carbon flexible interdigitated solid supercapacitors also exhibit excellent flexibility and folding endurance.