MXene-Mediated Cellulose Conductive Hydrogel with Ultrastretchability and Self-Healing Ability

Huixiong Wan, Yu Chen, Yongzhen Tao*, Pan Chen*, Sen Wang, Xueyu Jiang, Ang Lu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

43 Citations (Scopus)

Abstract

Constructing natural polymers such as cellulose, chitin, and chitosan into hydrogels with excellent stretchability and self-healing properties can greatly expand their applications but remains very challenging. Generally, the polysaccharide-based hydrogels have suffered from the trade-off between stiffness of the polysaccharide and stretchability due to the inherent nature. Thus, polysaccharide-based hydrogels (polysaccharides act as the matrix) with self-healing properties and excellent stretchability are scarcely reported. Here, a solvent-assisted strategy was developed to construct MXene-mediated cellulose conductive hydrogels with excellent stretchability (∼5300%) and self-healability. MXene (an emerging two-dimensional nanomaterial) was introduced as emerging noncovalent cross-linking sites between the solvated cellulose chains in a benzyltrimethylammonium hydroxide aqueous solution. The electrostatic interaction between the cellulose chains and terminal functional groups (O, OH, F) of MXene led to cross-linking of the cellulose chains by MXene to form a hydrogel. Due to the excellent properties of the cellulose-MXene conductive hydrogel, the work not only enabled their strong potential in both fields of electronic skins and energy storage but provided fresh ideas for some other stubborn polymers such as chitin to prepare hydrogels with excellent properties.

Original languageEnglish
Pages (from-to)20699-20710
Number of pages12
JournalACS Nano
Volume17
Issue number20
DOIs
Publication statusPublished - 24 Oct 2023

Keywords

  • MXene
  • cellulose
  • self-healing
  • sensor
  • supercapacitor

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Wan, H., Chen, Y., Tao, Y., Chen, P., Wang, S., Jiang, X., & Lu, A. (2023). MXene-Mediated Cellulose Conductive Hydrogel with Ultrastretchability and Self-Healing Ability. ACS Nano, 17(20), 20699-20710. https://doi.org/10.1021/acsnano.3c08859