Bubble Formation on a Hydrophobic Surface

Autor:	Yu. K. Levin, S. I. Koshoridze
Rok vydání:	2020
Předmět:	010302 applied physics Materials science Physics and Astronomy (miscellaneous) Capillary action Electric potential energy Thermodynamics 01 natural sciences Surface energy 010305 fluids & plasmas Gibbs free energy Physics::Fluid Dynamics Surface tension Contact angle symbols.namesake 0103 physical sciences symbols Liquid bubble Surface charge
Zdroj:	Technical Physics. 65:846-850
ISSN:	1090-6525 1063-7842
DOI:	10.1134/s1063784220060171
Popis:	This work studies the formation of a charged equilibrium nanobubble on a smooth hydrophobic solid–water interface. Expressions are given for the change in the Gibbs energy of the system, taking into account the Kelvin capillary equation, the electrostatic energy of the electrical double layer at the bubble-water interface, and the surface energy. The graph of the Gibbs energy versus the nanobubble radius is shown to have a minimum, which indicates the possibility of spontaneous generation of these nanostructures. The work studies the dependence of Gibbs energy on the contact angle, as well as salinity and the coefficient of surface tension, and calculates the surface charge necessary for the stability of nanobubbles.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e3a18b0b0c397e4025edc67ab1c174c6 https://doi.org/10.1134/s1063784220060171 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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