文献类型：期刊文献

英文题名：Ultrathin cellulose nanofiber/carbon nanotube/Ti3C2Tx film for electromagnetic interference shielding and energy storage

作者：Wang, Beibei[1,2] Li, Yanchen[1,2] Zhang, Weiye[1,2] Sun, Jingmeng[1,2] Zhao, Junqi[1,2] Xu, Yuzhi[3] Liu, Yi[1,2] Guo, Hongwu[1,2] Zhang, Daihui[3]

第一作者：Wang, Beibei

机构：[1] Key Laboratory of Wood Materials Science and Application of Ministry of Education, Beijing Forestry University, Beijing, 100083, China; [2] Key Laboratory of Wood Science and Engineering, Beijing Forestry University, Beijing, 100083, China; [3] Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Jiangsu, Nanjing, 210042, China

年份：2022

卷号：286

外文期刊名：Carbohydrate Polymers

收录：EI(收录号：20221011750619);Scopus(收录号：2-s2.0-85125676710)

语种：英文

外文关键词：Capacitance - Carbon films - Carbon nanofibers - Cellulose films - Conductive films - Electrolytes - Electromagnetic pulse - Electromagnetic shielding - Electromagnetic wave interference - Energy storage - Nanocellulose - Signal interference - Supercapacitor - Ultrathin films

摘要：Controllable fabrication of lightweight, highly conductive, and flexible films is important to simultaneously achieve excellent electromagnetic interference (EMI) shielding and high-rate energy storage. Herein, ultrathin, flexible, and conductive (up to 365,000 ± 5000 S m?1) TOCNFs/CNT/Ti3C2Tx hybrid films were fabricated by a facile vacuum-filtration. The obtained films with 60 wt% Ti3C2Tx content exhibited a high specific EMI SE of 9316.4 ± 205.32 dB cm2 g?1, which was comparable to most of the other carbon- and MXene- based materials synthesized by complex steps. Additionally, the porous structure contributed to exposing more active sites and providing efficient transport of electrolyte ions. Consequently, the hybrid films showed a high areal capacitance and high specific capacitance of 537 mF cm?2 and 279.7 F g?1 at 0.3 mA cm?2, respectively, together with impressive stability of 93.1% after 8000 cycles. This work provides an effective strategy to synthesize high-performance conductive films for applications in wearable or portable electronic devices. ? 2022