半纤维素
材料科学
复合数
电极
复合材料
超级电容器
电阻率和电导率
纳米技术
聚合物
电导率
纤维素
化学工程
电容
化学
电气工程
物理化学
工程类
作者
Ruwei Chen,Hao Tang,Yuhang Dai,Wei Zong,Wei Zhang,Guanjie He,Xiaohui Wang
出处
期刊:ACS Nano
[American Chemical Society]
日期:2022-10-26
卷期号:16 (11): 19124-19132
被引量:52
标识
DOI:10.1021/acsnano.2c08163
摘要
MXene-based structural materials with high mechanical robustness and excellent electrical conductivity are highly desirable for multifunctional applications. The incorporation of macromolecular polymers has been verified to be beneficial to alleviate the mechanical brittleness of pristine MXene films. However, the intercalation of a large amount of insulating macromolecules inevitably compromises their electrical conductivity. Inspired by wood, short-chained hemicellulose (xylo-oligosaccharide) acts as a molecular binder to bind adjacent MXene nanosheets together; this work shows that this can significantly enhance the mechanical properties without introducing a large number of insulating phases. As a result, MXene-hemicellulose films can integrate a high electrical conductivity (64,300 S m-1) and a high mechanical strength (125 MPa) simultaneously, making them capable of being high-performance electrode materials for supercapacitors and humidity sensors. This work proposes an alternative method to manufacture robust MXene-based structural materials for multifunctional applications.
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