期刊
NANO ENERGY
卷 99, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.nanoen.2022.107431
关键词
Triboelectric nanogenerator; Liquid-solid interface; Temperature difference; Electric double layer
类别
资金
- National Natural Science Foundation of China [U1813217, 62001281]
- Shanghai Sailing Program [20YF1412700]
This study investigates the influence of temperature on the output performance of solid-liquid triboelectric nanogenerators (TENGs). The results show that temperature has an inconsistent effect on different TENG materials, with the ion concentration in the solution playing a dominant role in the charge transfer process.
Currently, the influence of external factors on the charge transfer between solid and liquid materials remains to be researched. Here, we reveal the effect of temperature on the output performance of some solid-liquid TENGs through a series of systematic experiments and a theoretical model. Firstly, we propose a simplified simulation method to evaluate the potential distribution of solid-liquid TENGs. Secondly, we test the performance of four solid TENG materials and three liquids at different temperatures, and results show that the influence of temperature on different TENGs is inconsistent. The output voltage, current, and transferred charges of PTFE-TENG increase 113%, 105%, and 71%, respectively, when the temperature of deionized water increases from 20 to 80 degrees C. The instantaneous power of tap water-FEP TENG at 60 degrees C is 717% higher than that at 20 degrees C. However, for NaCl solution (3.5 wt%), the temperature shows few effects on the output of TENGs, and the ion concentration displays a dominant position in the charge transfer process. Finally, we use an electric double layer model to explain this phenomenon properly.
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