3D-printed mechanically strong and extreme environment adaptable boron nitride/cellulose nanofluidic macrofibers

作     者：Le Yu Tingting Gao Ruiyu Mi Jing Huang Weiqing Kong Dapeng Liu Zhiqiang Liang Dongdong Ye Chaoji Chen Le Yu;Tingting Gao;Ruiyu Mi;Jing Huang;Weiqing Kong;Dapeng Liu;Zhiqiang Liang;Dongdong Ye;Chaoji Chen

作者机构：School of Resource and Environmental SciencesHubei Biomass-Resource Chemistry and Environmental Biotechnology Key LaboratoryWuhan UniversityWuhan 430079China Key Laboratory of Textile Science and TechnologyMinistry of EducationCollege of TextilesDonghua UniversityShanghai 201620China Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid WastesNational Laboratory of Mineral MaterialsSchool of Materials Science and TechnologyChina University of GeosciencesBeijing 100083China State Key Laboratory for Modification of Chemical Fibers and Polymer MaterialsCollege of Materials Science and EngineeringDonghua UniversityShanghai 201620China Interdisciplinary Materials Research CenterSchool of Materials Science and EngineeringTongji UniversityShanghai 201804China Institute of Functional Nano and Soft Materials(FUNSOM)Jiangsu Key Laboratory for Carbon-Based Functional Materials and DevicesSoochow UniversitySuzhou 215123China School of Textile Materials and EngineeringWuyi UniversityJiangmen 529020China 

出 版 物：《Nano Research》 (纳米研究（英文版）)

年 卷 期：2023年第16卷第5期

页      面：7609-7617页

核心收录：

学科分类：0710[理学-生物学] 07[理学] 070205[理学-凝聚态物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0836[工学-生物工程] 0822[工学-轻工技术与工程] 0702[理学-物理学] 0801[工学-力学（可授工学、理学学位）] 

基　　金：We thank the Test Center and Core Facility of Wuhan University for assistance with material characterizations. The authors acknowledge Q. Xia for the helpful suggestions on the graphical illustration of the cross-linking process and H. Liu for TG-FTIR measurements. 

主　　题：three-dimensional(3D)printing nanofluidic boron nitride cellulose macrofiber 

摘      要：Fibrous nanofluidic materials are ideal building blocks for implantable electrode,biomimetic actuator,wearable electronics due to their favorable features of intrinsic flexibility and unidirectional ion transport.However,the large-scale preparation of fibrous nanofluidic materials with desirable mechanical strength and good environment adaptability for practical use remains challenging.Herein,by fully taking advantage of the attractive mechanical,structural,chemical features of boron nitride(BN)nanosheet and nanofibrillated cellulose(NFC),a scalable and cost-effective three-dimensional(3D)printed macrofiber featuring abundant vertically aligned nanofluidic channels is demonstrated to exhibit a good combination of high tensile strength of 100 MPa,thermal stability of up to 230℃,ionic conductivity of 1.8×10^(−4)S/cm at low salt concentrations(10^(−3)M).In addition,the versatile surface chemistry of cellulose allows us to stabilize the macrofiber at the molecular level via a facile postcross-linking method,which eventually enables the stable operation of the modified macrofiber in various extreme environments such as strong acidic,strong alkaline,high temperature.We believe this work implies a promising guideline for designing and manufacturing fibrous nanodevices towards extreme environment operations.