Membraneless electrolyzer designed using the tesla valve concept for hydrogen production

Identifier:  imarina:9449979

Handle: https://hdl.handle.net/20.500.11797/imarina9449979

Authors:  Zoljalali, M; Ahorsu, R; Díaz, F; Aguiló, M; Mateos, X

Abstract:
This study focuses on the fabrication of a membraneless electrolyzer using the Tesla valve concept. The designed electrolyzer by utilizing the fluidic forces and tesla valves concept separate the produced H2 and O2 without using a membrane. Elimination of the membrane contributes to increasing the flexibility of the working condition for the electrolyzers and decreases fabrication costs. Tesla valve membranelss electrolyzers can operate at a flow rate of 30 mL h- 1 and a current density of 300 mA cm- 2. This pumping power is the lowest required pumping power for the reported current density in the literature of membraneles electrolyzers. Furthermore, by increasing the flow rate to 80 mL h- 1, this structure works at up to 600 mA cm- 2. Additionally, this study demonstrates that by leveraging the diodicity of the Tesla valve and changing the placement of the anode and cathode, the hydrogen production frequency can be increased by an average of 13%.