Growth and Dynamics of Hydrogen Bubbles at Microelectrodes

Autor: Bashkatov, A., Hossain, S. S., Yang, X., Mutschke, G., Eckert, K.
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Nanobubble Conference 2022, 18.-21.09.2022, Magdeburg, Deutschland
Popis: The evolution and dynamics of gas bubbles has a strong impact on the efficiency of water electrolysis. Our poster will summarize recent work of our group on the hydrogen evolution at a microelectrode in acidic electrolytes. Depending on the applied potential and the electrolyte concentration, three different growth regimes are identified, among them oscillatory growth above a carpet of microbubbles. The discussion of the force balance of the bubbles includes thermocapillary effects and an electric force caused by charge adsorption at the interface.
Databáze: OpenAIRE