University of Toronto researchers, including Tess Seip, a PhD candidate, and Dr. Aimy Bazylak, are working on enhancing a device that converts water into hydrogen and oxygen for energy purposes. The team is specifically focusing on improving the porous transport layer (PTL) in the polymer electrolyte membrane water electrolyzer (PEMWE) to optimize water flow and efficiency. By introducing extra channels in the PTL, they aim to prevent excess gas accumulation and enhance the water-catalyst interaction. The researchers collaborated with the Canadian Light Source (CLS) at the University of Saskatchewan to test their modifications, which successfully increased the efficiency of the PEMWE. Seip highlighted the importance of proper membrane hydration for the efficiency of the electrolysis process. The team used the high-resolution BMIT beamline at CLS to analyze microscopic changes in the membrane while the cell was operational. This detailed analysis is crucial for advancing hydrogen technology towards industrial and transportation applications. While current electrolyzers are deemed expensive for transportation, the research by the U of T team could pave the way for cost-effective solutions. Improving water flow in the PEMWE is a key step towards scalability and commercial viability of hydrogen energy. The potential efficiency gains from this research could lead to significant impacts, promoting the adoption of carbon-free energy solutions in various sectors like transportation and residential energy use.