DataVXACS Applied Materials & InterfacesPaper
journal article·2024-01-10

Assessing the Mechanical-to-Electrical Energy Conversion Process of a Droplet Sliding on the Poly(tetrafluoroethylene) Surface

Tao Hu, Xuemei Li, Xiang Wang, Han Sheng, Jun Yin, Wanlin Guo

ACS Applied Materials & Interfaces· Volume 16· Issue 1
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Source abstract

Abstract

Utilizing moving droplets to generate electricity has garnered significant attention due to its high output voltage and power. However, the understanding of energy dissipation and conversion processes during droplet movement remains limited, hindering the development of effective ways to further enhance the device's performance. In this study, we developed a method to simultaneously evaluate the input mechanical energy and output electrical energy while droplets slide on a poly(tetrafluoroethylene) (PTFE) surface to assess the energy conversion process. The influences of ion concentration, droplet volume, and contact area with PTFE on the energy conversion efficiency were investigated, suggesting optimized parameters. Moreover, by introduction of an asymmetric electric field on the PTFE surface, the input mechanical energy can be significantly reduced. In combination with the enhanced electrical output originating from improved surface charge density, the energy conversion efficiency is improved by an order of magnitude from 0.61 to 9.08%. These results shed light on strategies to improve device performance based on moving droplets.
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Research context

OpenAlex topics: Advanced Sensor and Energy Harvesting Materials · Surface Modification and Superhydrophobicity · Electrowetting and Microfluidic Technologies

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

State Key Laboratory of Mechanics and Control for Aerospace Structures, Key Laboratory for Intelligent Nano Materials and Devices of the Ministry of Education, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China

College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China

College of Material Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China

Institute for Frontier Science, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China

Funding

National Key Research and Development Program of China · Nanjing University of Aeronautics and Astronautics · Natural Science Foundation of Jiangsu Province · Fundamental Research Funds for the Central Universities · National Natural Science Foundation of China · State Key Laboratory of Mechanics and Control for Aerospace Structures

References (30)

Show source-provided references
1. 10.1038/ngeo158010.1038/ngeo1580 ↗
2. 10.1016/j.rser.2014.11.10510.1016/j.rser.2014.11.105 ↗
3. 10.1016/j.joule.2020.07.01510.1016/j.joule.2020.07.015 ↗
4. 10.1038/s41565-018-0228-610.1038/s41565-018-0228-6 ↗
5. 10.1039/D1CS00778E10.1039/D1CS00778E ↗
6. 10.1038/nnano.2014.5610.1038/nnano.2014.56 ↗
7. 10.1080/19475411.2023.216878210.1080/19475411.2023.2168782 ↗
8. 10.1038/s41586-020-1985-610.1038/s41586-020-1985-6 ↗
9. 10.1016/j.nanoen.2022.10702410.1016/j.nanoen.2022.107024 ↗
10. 10.1016/j.nanoen.2020.10555810.1016/j.nanoen.2020.105558 ↗
11. 10.1016/j.nanoen.2019.04.02010.1016/j.nanoen.2019.04.020 ↗
12. 10.1038/ncomms458210.1038/ncomms4582 ↗
13. 10.1016/j.joule.2022.02.00210.1016/j.joule.2022.02.002 ↗
14. 10.1021/acsnano.6b0303210.1021/acsnano.6b03032 ↗
15. 10.1021/jacs.8b0777810.1021/jacs.8b07778 ↗
16. 10.1016/j.nanoen.2019.10437010.1016/j.nanoen.2019.104370 ↗
17. 10.1016/j.nanoen.2021.10670510.1016/j.nanoen.2021.106705 ↗
18. 10.1002/smll.20230156810.1002/smll.202301568 ↗
19. 10.1016/j.nanoen.2020.10474810.1016/j.nanoen.2020.104748 ↗
20. 10.1002/aenm.20220382510.1002/aenm.202203825 ↗
21. 10.1016/j.apenergy.2020.11642810.1016/j.apenergy.2020.116428 ↗
22. 10.1016/j.nanoen.2022.10744310.1016/j.nanoen.2022.107443 ↗
23. 10.1002/adma.20200169910.1002/adma.202001699 ↗
24. 10.1021/acs.langmuir.0c0276810.1021/acs.langmuir.0c02768 ↗
25. 10.1126/sciadv.adi299310.1126/sciadv.adi2993 ↗
26. 10.1063/1.174952210.1063/1.1749522 ↗
27. 10.1021/la047437v10.1021/la047437v ↗
28. 10.1038/s41467-020-19054-810.1038/s41467-020-19054-8 ↗
29. 10.1088/0022-3727/32/17/10210.1088/0022-3727/32/17/102 ↗
30. 10.1016/j.nanoen.2023.10891810.1016/j.nanoen.2023.108918 ↗