文献类型：期刊文献

英文题名：Facile Design of Flexible, Strong, and Highly Conductive MXene-Based Composite Films for Multifunctional Applications

作者：Wang, Beibei[1,2] Zhang, Weiye[1,2] Lai, Chenhuan[3] Liu, Yi[1,2] Guo, Hongwu[1,2] Zhang, Daihui[1,3,4] Guo, Zhanhu[5]

第一作者：Wang, Beibei

通信作者：Liu, Y[1];Guo, HW[1];Zhang, DH[1];Liu, Y[2];Guo, HW[2];Zhang, DH[3];Zhang, DH[4]

机构：[1]Beijing Forestry Univ, Key Lab Wood Mat Sci & Applicat, Minist Educ, Beijing 100083, Peoples R China;[2]Beijing Forestry Univ, Engn Res Ctr Forestry Biomass Mat & Energy, Minist Educ, Beijing 100083, Peoples R China;[3]Nanjing Forestry Univ, Coinnovat Ctr Efficient Proc & Utilizat Forest Res, Nanjing 210037, Jiangsu, Peoples R China;[4]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Nanjing 210042, Jiangsu, Peoples R China;[5]Northumbria Univ, Dept Mech & Construct Engn, Integrated Composites Lab, Newcastle Upon Tyne NE1 8ST, England

年份：2023

外文期刊名：SMALL

收录：;EI(收录号：20233614675893);Scopus(收录号：2-s2.0-85169464590);WOS:【SCI-EXPANDED(收录号:WOS:001057448400001)】；

基金：This research was funded by the National Natural Science Foundation of China (32001283), Natural Science Foundation of Beijing Municipality (6184045), National Key R & amp;D Program of China (2017YFD0601104), and the Fundamental Research Funds for the Central Universities (2018ZY12). The authors would like to thank Scientific Research N power () and Shiyanjia Lab () for the equivalent circuit fitting and AFM tests.

语种：英文

外文关键词：cellulose nanofibers; electromagnetic interference shielding; energy storage; MXene; silver-nanowires; structural design

摘要：Strong, conductive, and flexible materials with improving ion accessibility have attracted significant attention in electromagnetic interference (EMI) and foldable wearable electronics. However, it still remains a great challenge to realize high performance at the same time for both properties. Herein, a microscale structural design combined with nanostructures strategy to fabricate TOCNF(F)/Ti3C2Tx(M)@AgNW(A) composite films via a facile vacuum filtration process followed by hot pressing (TOCNF = TEMPO-oxidized cellulose nanofibrils, NW = nanowires) is described. The comparison reveals that different microscale structures can significantly influence the properties of thin films, especially their electrochemical properties. Impressively, the ultrathin MA/F/MA film with enhanced layer in the middle exhibits an excellent tensile strength of 107.9 MPa, an outstanding electrical conductivity of 8.4 x 106 S m-1, and a high SSE/t of 26 014.52 dB cm2 g-1. The assembled asymmetric MA/F/MA//TOCNF@CNT (carbon nanotubes) supercapacitor leads to a significantly high areal energy density of 49.08 & mu;Wh cm-2 at a power density of 777.26 & mu;W cm-2. This study proposes an effective strategy to circumvent the trade-off between EMI performance and electrochemical properties, providing an inspiration for the fabrication of multifunctional films for a wide variety of applications in aerospace, national defense, precision instruments, and next-generation electronics. A microscale structural design combined with nanostructures strategy is reported for fabricating TOCNF(F)/Ti3C2Tx(M)@AgNW(A) composite films. The synthesized films show impressive electromagnetic interference shielding performance and electrochemical properties, which provides an inspiration for the fabrication of multifunctional films for a wide variety of applications.image