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EPTT 2024
14th Spring School on Transition and Turbulence
DYNAMICS OF H2 BUBBLES BASED ON VELOCITY FIELDS DURING WATER ELECTROLYSIS
Submission Author:
Jeferson Diehl de Oliveira , RS , Brazil
Co-Authors:
Jeferson Diehl de Oliveira, Clauber Andre Ferasso, Elaine Maria Cardoso, Lina Maria Varon Cardona, Jacqueline Copetti
Presenter: Jeferson Diehl de Oliveira
doi://10.26678/ABCM.EPTT2024.EPT24-0022
Abstract
This research examines the electrolysis process using nickel-iron electrodes immersed in two types of electrolytes: one consisting of 30% KOH alone and another with 30% KOH supplemented by 2.5 g of ionic liquid (BMI.BF4). The electrodes were spaced 40 mm apart, and 55, 110, and 165 A/m2 current densities were applied. The study involved capturing and analyzing images of hydrogen evolution to investigate the impact of the ionic liquid on ionic conductivity. Findings, illustrated through images showing vertical velocity, vorticity, and velocity field, suggest potential enhancements in hydrogen generation, characterized by larger bubble volumes and improved vertical displacement speeds of bubbles when the ionic liquid is introduced into the electrolyte.
Keywords
Electrolytic process, Ionic solution, Visual motion analysis, Hydrogen Generation
