Membrane-less water electrolyzer
Hydrogen production through water electrolysis is a clean option for storing energy from renewable sources. Low-cost hydrogen production requires efficient water electrolyzers that can produce pure hydrogen at high production throughput. Membrane-less electrolyzers are promising technologies for hydrogen production due to their simple design, low ionic resistance, and adaptability to various working conditions. The fluidic flow keeps hydrogen and oxygen bubbles separated from each other in these electrolyzers. Bubbles’ motion in these electrolyzers affects product purity and electrochemical performance. Therefore, a thorough understanding of the two-phase flow is needed to improve the performance of membrane-less electrolyzers.
Publications
- A membrane-less electrolyzer for hydrogen production across the pH scale
M.H. Hashemi, M.A. Modestino, D.Psaltis
Energy & Environmental Science, 8(7), 2003-2009 (2015) - Vapor-fed microfluidic hydrogen generator
A. Modestino, M.Dumortier, S.M.H. Hashemi, S.Haussener, C.Moser, D.Psaltis
Lab on a Chip, 15(10), 2287-2296 (2015) - The potential for microfluidics in electrochemical energy systems
A. Modestino, D.F.Rivas, S.M.H. Hashemi, J-G.Gardeniers,D.Psaltis
Energy & environmental science, 9(11), 3381-3391 (2016) - Membrane-less micro fuel cell based on two-phase flow
M.H.Hashemi, M.Neuenschwander, P.Hadikhani, M.A. Modestino, D.Psaltis
Journal of Power Sources, 348, 212-218 (2017) - Inertial manipulation of bubbles in rectangular microfluidic channels
Hadikhani, S.M.H. Hashemi, G. Balestra, L. Zhu, M.A. Modestino, F. Gallaire, D.Psaltis
Lab on a Chip, 18(7), 1035-1046 (2018) - A versatile and membrane-less electrochemical reactor for the electrolysis of water and brine
M.H. Hashemi,P. Karnakov, P. Hadikhani, E. Chinello, S. Litvinov, C. Moser, D. Psaltis
Energy & Environmental Science, 12(5), 1592-1604 (2019) - The Impact of Surfactants on the Inertial Separation of Bubbles in Microfluidic Electrolyzers
Hadikhani, S.M.H. Hashemi, D. Psaltis
Journal of The Electrochemical Society, 167(13), 134504 (2020) - A membrane-less electrolyzer with porous walls for high throughput and pure hydrogen production
Hadikhani, S.M.H. Hashemi, S.A. Schenk, D. Psaltis
Sustainable Energy & Fuels (2021)