期刊
COMPOSITES PART B-ENGINEERING
卷 197, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2020.108187
关键词
Ti3C2Tx (MXene); Spider web; Self-assembled hydrogel; Anti-aggregation; Sensor
资金
- National Key Research and Development Program of China [2017YFB0307900]
- National Natural Science, Foundation of China [31770632]
- Natural Science Foundation of Fujian Province [2015J05093]
- Fujian Agriculture and Forestry University [CXZX2017296, CXZX2017037]
The restacking tendency of 2D Ti3C2Tx (MXene) sheets is the main obstacle preventing their application as functional materials in hydrogel. Herein, we fabricated novel ultra-stable 3D MXene-polyacrylamide (PAM) nanocomposite hydmgels inspired by the structure of a spider web. In particular, MXene nanosheets were uniformly located in a gel medium by precise alignment of sonication treatments, followed by the in-situ self-assembly of PAM hydrogel. In this instance, the MXene nanosheets are well-confined and trapped (via strong interactions) by the interwoven spider web-like structure of the PAM chains, which grow in-situ on the surface of the nanosheets. This approach proved effective to solve problems associated with the poor stability of MXene nanosheets in the hydrogel; more prominently, the tight cross-linked structure endows the MXene-PAM hydrogel with anti-compressive and anti-swelling capabilities; the continuous distribution of MXene nanosheets connected by the PAM network creates electron transport pathways and proton transport bridges in the hydrogel. Therefore, the hydrogel can be employed as a temperature and strain sensor or as a component of moist-electric nanogenerator.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据