2020-11-18
Recently, BFU Biomass Clean Utilization Research Center has made new breakthrough on Triboelectric Nanogenerators. This study is based on the research of “ A Stretchable Highoutput Triboelectric Nanogenerator Improved by MXene Liquid Electrode with High Electronegativity ” and published on Advanced Functional Materials (IF 16.836), a top-ranking journal in the field of materials. Dr. Wentao Cao, a doctoral student of the Department of Forest Products and Chemicals, School of Materials Science and Technology, is the first author, Professor. Mingguo Ma is the corresponding author, and scholars from the Institute of Nanoenergy and Systems in the Chinese Academy of Sciences and the Tenth People's Hospital of Tongji University also participate in the study. It’s funded by the Science and Technology Innovation Program of Beijing Forestry University and the National Key Research and Development Program.
Triboelectric Nanogenerators (TENGs) are new and efficient energy harvester that can effectively convert mechanical energy into electrical energy and provide a new self-powered sensing mechanism for signal sensing without external power supply, which offers infinite possibilities for solving the energy supply problem of electronic devices. Based on excellent fluidity and electronegativity of MXene, this study designs a stretchable single-electrode TENG with high output performance using nanocellulose/MXene dispersion as a liquid electrode, and constructs a flexible wearable self-driven sensing system as an energy supply platform for electronic devices. The prepared device can withstand multiple deformations such as curling, stretching, and twisting, and can simultaneously light 230 LED lights while manually patting the silicone to collect energy. TENG has excellent mechanical energy collection performance, and the energy collected by tapping the silica gel manually can charge the 22 μF capacitor to 3.0 V within 60 seconds. The collected power can be used to drive an electronic watch to run normally for 60 seconds, and can be used to successfully light up an illuminated horn hairpin. It can be used as a self-powered sensor in combination with a wireless module and NFC antenna for remote, wireless, and precise monitoring of various body movements such as finger bending, wrist bending, neck movement and knee bending. It provides a new approach to building stretchable power and self-powered sensors with potential applications in various fields such as robotics, human kinematics and biomechanics.
Following the “4-Orientation” guiding principle, the Biomass Clean Utilization Research Center takes "being clean, green, economical and sustainable" as the utmost goal for carrying out biomass clean utilization researches capable of yielding original, and innovative results that meet the needs of industrial development.
Paper link:https://onlinelibrary.wiley.com/doi/full/10.1002/adfm.202004181
