| Analysis of the Porosity Production in LPBF Process Using Designed Porosity and Process Parameters University of Alberta | Publication | 2022-06-21 | Shokoufeh Sardarian, Shirin Dehgahi, Secanell, M., Qureshi, A. |
| Bifunctional Oxygen Electrodes for PEM-Unitized Regenerative Fuel Cell Fabricated By Inkjet Printing University of Alberta | Publication | 2024-10-22 | Luis Padilla, Liu, J., Semagina, N., Secanell, M. |
| Experimental and Numerical Analysis of Alkaline Exchange Membrane Water ElectrolyzersExperimental and Numerical Analysis of Alkaline Exchange Membrane Water Electrolyzers University of Alberta | Publication | 2024-11-22 | Mouallem, J., Secanell, M., Jasper Eitzen, Andrea Quintero, Scott Storbakken |
| Exploring the Impact of Cathode Ionomer Content on Alkaline Exchange Membrane Fuel Cells (AEMFCs) Using Inkjet Printing Technique University of Alberta | Publication | 2024-10-22 | Liu, J., Secanell, M. |
| Using Edge-Type Reference Electrodes to Estimate Anode and Cathode Overpotentials in Alkaline Exchange Membrane Fuel Cells and Electrolysers University of Alberta | Publication | 2025-01-01 | Liu, J., Mouallem, J., Secanell, M., Andrea Quintero |
| Determination of anode and cathode overpotentials in AEMFCs using multiple edge-type reference electrodes: Experiments and simulationsIn anion exchange membrane fuel cells (AEMFCs), both the anode and cathode significantly contribute to cell voltage losses. To distinguish these contributions, a new AEMFC catalyst-coated membrane (CCM) with multiple edge-type reference electrodes (REs) was rapidly and reliably manufactured using inkjet printing and integrated into a cell. Experiments revealed that at low current densities, cathode losses dominate. However, anode losses rapidly increase with current density, becoming comparable to cathode losses at 1 A/cm2 (0.41 V for the anode and 0.44 V for the cathode). This experimental data was used to develop a numerical AEMFC model that accurately reproduces overall cell voltage, half-cell potentials, and high-frequency resistance (HFR). The validated model shows that measured half-cell potentials contain both kinetic overpotential and ohmic losses from membrane and catalyst layer, and … University of Alberta | Publication | 2025-01-01 | Liu, J., Mouallem, J., Mohamad Ghadban, Secanell, M. |
| Exploring the impact of ionomer content and distribution on inkjet printed cathodes for anion exchange membrane fuel cellsElectrode composition optimization is critical to achieving high and stable anion exchange membrane fuel cell (AEMFC) performance. In this article, inkjet printing is pioneered as a method to fabricate AEMFC electrodes with varying and graded cathode ionomer loading in order to assess its impact on electrode electrochemical properties, cell performance and stability. Inkjet printed catalyst layers (CLs) exhibited decreasing porosity with increasing ionomer content, maintaining a constant active area at 50 C under fully humidified conditions. The increase in active area and ionic conductivity with increasing ionomer content was detectable only at higher temperatures. At 60 C with 90% relative humidity inlet gases, the AEMFCs with cathode electrodes with optimal 20 wt% uniform ionomer content achieved a highly repeatable and stable performance of 0.53 W/cm2 with a total loading of 0.3 mg/cm2. Grading the cathode ionomer content, with higher concentration near the membrane and lower near the gas diffusion layer (GDL), does not improve cell performance, indicating neither cathode conductivity nor mass transport limits performance. When tested at 80 C, AEMFCs with a graded cathode ionomer structure (30 wt% near the membrane and 20 wt% near the GDL) demonstrated improved stability compared to those with a uniform 20 wt% ionomer content. This stability improvement is attributed to better water retention with more cathode ionomer content, as evidenced by the cell’s ability to maintain low resistance. University of Alberta | Publication | 2025-01-01 | Liu, J., Secanell, M. |
| Structured porous 17-PH stainless steel layer fabrication through laser powder bed fusion University of Alberta | Publication | 2024-01-01 | Shokoufeh Sardarian, Shirin Dehgahi, F Wei, Secanell, M., Qureshi, A. |
