Fabrication of Ti-based 3D Porous Transport Layer for PEMWEs Using Shockwave-Induced Spraying

Wednesday, May 24, 2023: 3:30 PM
303A (Quebec City Convention Centre)
Mr. Mohsen Fakourihassanabadi , Institut national de la recherche scientifique, Varennes, QC, Canada
Dr. Bruno Guerreiro , National Research Council of Canada, Boucherville, QC, Canada
Ms. Julie Gaudet , Institut national de la recherche scientifique, Varennes, QC, Canada
Dr. Manuel H. Martin , National Research Council of Canada, Boucherville, QC, Canada
Mrs. Somayyeh Abbasi, PhD Candidate , Institut National de la Recherche Scientifique (INRS), Varennes, QC, Canada
Prof. Steven Thorpe , Toronto University, Toronto, ON, Canada
Prof. Daniel Guay , Institut national de la recherche scientifique, Varennes, QC, Canada
The cost-effective production of green hydrogen is contingent upon reducing the capital cost of Polymer Electrolyte Membrane Water Electrolysis (PEMWE). Currently, 17 to 25% of the production cost of a PEMWE stack depends on components related to the Porous Transport Layer (PTL). They are usually made of compressed and sintered titanium powders/fibers to provide them with structural and chemical integrity. Herein, we report on the production of a Ti-based PTL through Shock-Wave Induced Spraying (SWIS) deposition, a process that does not require heat treatment to provide structural and mechanical stability. This report also investigates the effect of using porogen on increasing and controlling the porosity of the Ti-based PTLs, in combination with SWIS process conditions. Two types of porogen (Cu and Al) were used to investigate the effect of porogen density on the deposition efficiency and porosity of the resulting coatings. The Al porogen allowed for the production of Ti-based PTLs coatings with 66% porosity, which is a very desirable feature for producing PTLs with higher gas permeability.
See more of: Renewable Energies and Storage
See more of: Thermal Spray Applications