Electrically conductive and highly compressible anisotropic MXene-wood sponges for multifunctional and integrated wearable devices

作     者：Dekui Song Mei-Jiao Zeng Peng Min Xue-Qin Jia Fu-Lin Gao Zhong-Zhen Yu Xiaofeng Li Dekui Song;Mei-Jiao Zeng;Peng Min;Xue-Qin Jia;Fu-Lin Gao;Zhong-Zhen Yu;Xiaofeng Li

作者机构：State Key Laboratory of Organic-Inorganic CompositesCollege of Materials Science and EngineeringBeijing University of Chemical TechnologyBeijing 100029China Beijing Key Laboratory of Advanced Functional Polymer CompositesBeijing University of Chemical TechnologyBeijing 100029China College of ChemistryBeijing Normal UniversityBeijing100875China 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2023年第144卷第13期

页      面：102-110页

核心收录：

学科分类：08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：support from the National Natural Science Foundation of China (Nos.52090034 and 51773008) the Fundamental Re-search Funds for the Central Universities (No.XK1802)is gratefully acknowledged.D.S.and M.J.Z.contributed equally to this work 

主　　题：MXene sheets Wood sponges Piezoresistive sensors Compressibility 

摘      要：Although piezoresistive sensors have wide applications in human motion detection and wearable elec-tronics,it is still a challenge to produce multifunctional and integrated sensors with wide working ranges and linear sensing ***,electrically conductive,highly compressible,and structurally anisotropic MXene-wood(MW)sponges are fabricated by converting balsa wood blocks to compressible wood sponges with extremely low density and highly anisotropic porous structure,followed by deco-rating with conductive MXene *** MW sponge is utilized to assemble a piezoresistive sensor with a large working range of 0-25 kPa,wide linear sensing ranges of 5%-50%and 0-180°,and excellent long-term reliability under a bending angle of 30°for 5000 ***,the sensor is suitable for monitoring practical human physiological signals including pulse beating,and finger and wrist *** all-MW sponge-based multifunctional and integrated sensing system is constructed by integrating the MW sponge piezoresistive sensor,the MW sponge-based solid-state supercapacitor,and the MW sponge electrophysiological *** sensing system can concurrently detect surface electromyogram and tactile pressures,and hence realize real-time closed-loop *** multifunctional and integrated MW sponge sensing system would have great potentials in real-time pressure recognition and human-machine interfaces.