University of Guelph

Published purpose

This project aims to enhance alkaline water electrolyser (AWE) efficiency for green hydrogen production by addressing gas bubble transport challenges. Utilizing advanced Ni-based metal 3D printing, it is planned to develop novel porous transport layers (PTLs) with controlled porosity and pore size gradients to facilitate efficient gas bubble removal and improve current density. Additionally, a revolutionary design that introduces water through a porous separator to reduce bubble formation on electrodes, potentially leading to a bubble-free operation and higher energy efficiency is being proposed. Collaborating with NRC, University of Waterloo (UoW) and UoG, this multidisciplinary effort seeks to reach the US Department of Energy's 2026 target of 1.0A/cm2 at 1.8V/cell in AWE systems, promising a significant advancement in the scalability and efficiency of hydrogen production technologies.