Self-Powered Ultra-Stretchable Organo-Hydrogel Sensors with Excellent Stability Based on a Solvent Replacement Strategy

With the development of flexible wearable devices, conductive hydrogels have attracted widespread attention due to their unique properties. However, traditional conductive hydrogels often suffer from poor mechanical properties and environmental stability, greatly limiting their application areas. Herein, a dynamic hydrophobically associated organo-hydrogel network, which is composed of polymer chain backbone (acrylamide and lauryl methacrylate), dispersant (sodium dodecyl sulfate), conductive filler (lithium bis(trifluoromethyl)sulfonimide), and crosslinker (containing dynamic imine bonds) is constructed. Then, through a solvent replacement strategy of glycerol, the conductive organo-hydrogels are obtained with excellent mechanical properties (1.21 MPa strength, 12.87 MJ m−3 toughness, and 3501% ultra-stretching), outstanding environmental stability (work stably in a wide range from −20 to 60 °C), and room-temperature self-healing ability (self-healing efficiency over 90%). Based on these performances, they are used as the working electrode of the triboelectric nanogenerators, which endows the triboelectric nanogenerators with an output voltage of 127 V, a power density of 205 mW m−2, and the ability to maintain a stable output over 10 000 cycles. A self-powered sensor is also constructed, which can realize the function of material recognition with the assistance of machine learning. This work will provide new ideas for the development of novel self-powered sensors.

相关文章

  • Fluorinated Soft Chains Modulate Supramolecular Interactions Between Rigid-Flexible Segments for High‑Performance and Two‑Component Recyclable Ionogels
    [Fuqi Wang, Xueying Duan, Fangyan Ou, Taifu Dong, Chuang Ning, Ting Xie, Changyu Qin, Wenyu Pan, Xiwei Xu, Fangmin Zeng, Zequan Li, Wei Gao, Shuangliang Zhao]
  • Efficient pedestrian-level wind energy harvesting using a hybridized technology
    [Gao Yu, Pengfei Ji, Xiaobo Gao, Tengfei Zhou, Shengbo Wang, Wei Gao, Hao Li, Zhong Lin Wang, Baodong Chen]
  • Special Rubber with Excellent Mechanical Strength, Environmental Stability, and Electrical Conductivity for Accordion-Structured High-Performance Triboelectric Nanogenerators
    [Wei Gao, Wenyu Pan, Xuehan Gao, Ting Xie, Fangyan Ou, Chuang Ning, Ziming Fu, Fuqi Wang, Tiantian Gan, Zhiyong Qin, Zengxi Wei, Qian Sun, Zequan Li, Chuanhui Xu, Shuangliang Zhao]
  • qq

    成果名称:低表面能涂层

    合作方式:技术开发

    联 系 人:周老师

    联系电话:13321314106

    ex

    成果名称:低表面能涂层

    合作方式:技术开发

    联 系 人:周老师

    联系电话:13321314106

    yx

    成果名称:低表面能涂层

    合作方式:技术开发

    联 系 人:周老师

    联系电话:13321314106

    ph

    成果名称:低表面能涂层

    合作方式:技术开发

    联 系 人:周老师

    联系电话:13321314106

    广告图片

    润滑集