石墨烯
数码产品
材料科学
纳米技术
自愈
制作
氧化物
可伸缩电子设备
柔性电子器件
电气工程
工程类
医学
病理
冶金
替代医学
作者
Jianan Ma,Yong‐Lai Zhang,Yuqing Liu,Dong‐Dong Han,Jiang‐Wei Mao,Jiarui Zhang,Wuchao Zhao,Hong‐Bo Sun
标识
DOI:10.1016/j.scib.2021.11.015
摘要
Self-healing materials (SHMs) with unique mechanical and electronic properties are promising for self-reparable electronics and robots. However, the self-healing ability of emerging two-dimensional (2D) materials, for instance, MXenes, has not been systematically investigated, which limits their applications in self-healing electronics. Herein, we report the homogeneous self-healing assembly (homo-SHA) of MXene and the heterogeneous self-healing assembly (hetero-SHA) of MXene and graphene oxide (GO) under moisture treatments. The self-healing mechanism has been attributed to the hydration induced interlayer swelling of MXene and GO and the recombination of hydrogen bond networks after water desorption. The multiform hetero-SHA of MXene and GO not only enables facile fabrication of free-standing soft electronics and robots, but also endows the resultant devices with damage-healing properties. As proof-of-concept demonstrations, free-standing soft electronic devices including a generator, a humidity sensor, a pressure sensor, and several robotic devices have been fabricated. The hetero-SHA of MXene and GO is simple yet effective, and it may pioneer a new avenue to develop miniature soft electronics and robots based on 2D materials.
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