文献类型：期刊文献

英文题名：Interfacial modulation of Ti₃C₂Tx MXene using functionalized cellulose nanofibrils for enhanced electrochemical actuation

作者：Hu, Yaru[1] Wang, Ying[1] Sun, Qinglu[1] Qi, Yue[4] Zhang, Yahui[4] Ji, Xingxiang[1] Yang, Guihua[1] Shi, Zhengjun[5] Rojas, Orlando J.[2,3] He, Ming[1,2,3,5]

第一作者：Hu, Yaru

通信作者：Wang, Y[1];He, M[1];Rojas, OJ[2];He, M[2];Rojas, OJ[3];He, M[3];He, M[4]

机构：[1]Qilu Univ Technol, Shandong Acad Sci, State Key Lab Biobased Mat & Green Papermaking, Jinan 250353, Shandong, Peoples R China;[2]Univ British Columbia, Bioprod Inst, Dept Chem & Biol Engn, Dept Chem, 2360 East Mall, Vancouver, BC V6T 1Z3, Canada;[3]Univ British Columbia, Dept Wood Sci, 2360 East Mall, Vancouver, BC V6T 1Z3, Canada;[4]Chinese Acad Forestry, Res Inst Wood Ind, Beijing 100091, Peoples R China;[5]Southwest Forestry Univ, Int Joint Res Ctr Biomass Mat, Kunming 650224, Peoples R China

年份：2024

卷号：281

外文期刊名：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES

收录：;EI(收录号：20244217186087);Scopus(收录号：2-s2.0-85206015600);WOS:【SCI-EXPANDED(收录号:WOS:001335188400001)】；

基金：The study was supported by the Shandong Provincial Natural Science Foundation (No.ZR2024MC189, No.ZR2022QE109) , the Jinan Science and Technology Bureau project (No.20233046) , the International Joint Research Center for Biomass Materials (No.2023-GH08) , Southwest Forestry University and the 111 Project (D21027) , and the Talent Research Project (2023RCKY209) , Qilu University of Technology (Shandong Academy of Sciences) .

语种：英文

外文关键词：Functionalized cellulose nanofibrils; MXene; Interfacial interaction

摘要：Electrochemical actuators (ECAs) with low voltage actuation and large deformation ranges generally require electrode materials with high ion kinetic energy transport, high charge storage, and excellent electrochemicalmechanical properties. However, the fabrication of such actuators remains a major challenge. In the present work, hybrid electroactive films were fabricated by self-assembling one-dimensional functionalized cellulose nanofibrils (CNFs) with two-dimensional MXene (Ti(3)C(2)Tx). The obtained ECA actuators fabricated by carboxymethylated cellulose nanofibrils (consisting of -CH2COO- surface groups) with Ti(3)C(2)Tx integrate excellent curvature (0.1041 mm(-1)), mechanical strength (21.68 MPa), a bending strain of 0.50 %, and a good actuation displacement of 9.3 mm at a low voltage range of -0.6 to 0.3 V. This may be attributed to the enlarged layer spacing (15.34 angstrom), which makes the embedding and transport of H+ easier, and excellent adaptivity of mechanical properties achieved by molecular-scaled strong hydrogen bonding, leading to better actuation performance. This study provides a potential research direction for the preparation of ECAs with large actuation deformation.