Highly Stretchable, Low‐Hysteresis, and Adhesive TA@MXene‐Composited Organohydrogels for Durable Wearable Sensors

Abstract As wearable sensors advance rapidly, demands for multifunctional conductive soft materials are ever higher, including high stretchability, resilience, adhesiveness and stability, simultaneously in one material, for stable long‐term use. Nanocomposite hydrogels incorporating conductive two‐dimensional (2D) nanofillers, such as MXene‐composited gels, emerge as promising candidates. Yet, fulfilling all above requirements, particularly large stretchability with low hysteresis, remains a challenge, owing to the easy oxidation and weak interactions of MXene nanosheets with polymer chains. Herein, an interfacial engineering strategy is proposed, where tannic acid (TA) with high‐density hydroxyl groups is…

• NN
  National Natural Science Foundation of China

  Awards: 22072127, 22102139, B2021203016
• GO
  Government of Jiangxi Province