How Surface and Substrate Chemistry Affect Slide Electrification.

ABSTRACT: When water droplets move over a hydrophobic surface, they and the surface become oppositely charged by what is known as slide electrification. This effect can be used to generate electricity, but the physical and especially the chemical processes that cause droplet charging are still poorly understood. The most likely process is that at the base of the droplet, an electric double layer forms, and the interfacial charge remains on the surface behind the three-phase contact line. Here, we investigate the influence of the chemistry of surface (coating) and bulk (substrate) on the slide electrification. We measured the charge of a series of droplets sliding over hydrophobically coated (1-5 nm thickness) glass substrates. Within a series, the charge of the droplet decreases with the increasing

SUBMITTER: Leibauer B 

PROVIDER: S-EPMC11009953 | biostudies-literature | 2024 Apr

REPOSITORIES: biostudies-literature