期刊
ACS APPLIED MATERIALS & INTERFACES
卷 10, 期 36, 页码 30819-30826出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.8b08337
关键词
sensor textile; all-immersed; liquid-solid interface; self-powered fluid sensor; triboelectric nanogenerator
资金
- National Natural Science Foundation of China [21676033, 81500894]
- Fok Ying-Tong Education Foundation for Young Teachers in the Higher Education Institutions of China [161067]
- State Key Laboratory of Mechanical Transmissions [SKLMT-ZZKT-2017Z01]
- Specialized Research Fund for Doctoral Program of China [SRFDP20125503120009]
- China Postdoctoral Science Foundation [2017M620417]
Enormous interests have been attracted on exploiting interfacial triboelectric effects for sensor and energy applications but immensely limited by the inefficient liquid solid electrification in terms of immersed applications in fluid. Here, we have presented a flexible self-powered all-in-one fluid sensor textile, for simultaneously monitoring the velocity, acceleration, and chemical composition based on an enhanced liquid solid triboelectric effect. The textile was woven from flexible dendritic cable electrodes surrounded by arrays of micrometal dendrites, which could be further coated with a layer of polytetrafluoroethylene nanofibers. Even when completely immersed in the fluid, the textile can efficiently output a combined electric signal for parsing the velocity, acceleration, and chemical composition information. Furthermore, a textile of 6 cm(2) can charge a commercialized capacitor to 1 V within 80 s by harvesting flow energy on the liquid/solid interface, showing a potential use as the power supply of a signal-processing circuit. It has proposed a promising fluid sensor without extra power cables, for alerting possible leakage or blockage inside chemical and petroleum pipelines.
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