Liquid–Solid Contact Electrification: Recent Studies and Applications
A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Materials Science and Engineering".
Deadline for manuscript submissions: 20 October 2025 | Viewed by 34
Special Issue Editors
Interests: liquid–solid interface electrification; biomimetic wettability interfaces and channels; applications of electrostatic regulation of charged fluids
Special Issue Information
Dear Colleagues,
Significant progress has been made in the study of liquid–solid contact electrification, especially at the micro-/nanoscale. Researchers, through nanotechnology and advanced equipment, are able to control the liquid–solid contact electrification phenomenon more precisely. The research focuses on electrification phenomena at the microscale, the dynamics of the process, and the impact of surface chemistry on electrification. Factors such as the contact between droplets and solid surfaces, droplet size, and surface morphology all influence the charge transfer process. The surface effects of nanomaterials lead to more complex behaviors in liquid–solid contact electrification, with charge quantity and polarity varying according to the molecular structure of the liquid and the morphology of the solid surface. Kinetic studies show that factors such as contact time, contact angle, and liquid flowability directly affect the rate of charge transfer. Additionally, the chemical properties of the solid surface play an important role in the electrification phenomenon, and surface modification can regulate the solid surface, thereby influencing liquid–solid contact electrification. Liquid–solid contact electrification has wide applications in various fields, including microenergy harvesting, microfluidic technology, self-cleaning technologies, sensors, and biomedical applications. This Special Issue aims to publish papers on emerging important technologies in the field of liquid–solid contact electrification. Topics of interest include, but are not limited to, the following:
- Studies on the mechanisms of liquid–solid contact electrification;
- Precise control of microfluids in microfluidic applications;
- Development of nanogenerators for efficient energy conversion in energy harvesting, widely applied to microsensors and wearable devices;
- Use of liquid–solid contact electrification in self-cleaning technologies for surface contamination removal;
- Sensitive detection of environmental parameters in sensor and biomedical fields and its application in early disease diagnosis.
Dr. Ning Li
Dr. Cunlong Yu
Guest Editors
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Keywords
- biomimetic materials
- wettability
- electrostatic polarization
- solid–liquid interface
- micro-actuator
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