Environmentally Friendly Hydrogel-Based Triboelectric Nanogenerators for Versatile Energy Harvesting and Self-Powered Sensors

Wei Xu, Long Biao Huang, Man Chung Wong, Li Chen, Gongxun Bai, Jianhua Hao

Research output: Journal article publicationJournal articleAcademic researchpeer-review

141 Citations (Scopus)


KGaA, Weinheim Triboelectric nanogenerators (TENGs), as a promising energy harvesting technology, have been rapidly developed in recent years. However, the research based on fully flexible and environmentally friendly TENGs is still limited. Herein, for the first time, a hydrogel-based triboelectric nanogenerator (Hydrogel-TENG) with high flexibility, recyclability, and environmental friendliness simultaneously has been demonstrated. The standard Hydrogel-TENG can generate a maximum output power of 2 mW at a load resistance of 10 MΩ. The tube-shaped Hydrogel-TENG can harvest mechanical energy from various human motions, including bending, twisting, and stretching. Furthermore, the system can serve as self-powered sensors to detect the human motions. Additionally, the utilized Polyvinyl Alcohol hydrogel employed in this study is recyclable to benefit for fabricating the renewable TENG. The open-circuit voltage of renewed hydrogel-TENG can reach up to 92% of the pristine output voltage. This research will pave a potential approach for the development of flexible energy sources and self-powered motion sensors in environmentally friendly way.
Original languageEnglish
Article number1601529
JournalAdvanced Energy Materials
Issue number1
Publication statusPublished - 11 Jan 2017


  • environmentally friendly
  • flexible
  • hydrogel
  • self-powered sensors
  • triboelectric nanogenerators

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)

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