Experimental and Analytical Investigation of Transport Phenomena and Catalyst Layer Microstructure of Fuel Cells

Abstract
   Achieving optimal performance in fuel cells hinges on understanding transport phenomena and catalyst layer (CL) dynamics. This study presents a 1-D, non-isothermal model for anion exchange membrane fuel cells (AEMFCs) integrating analytical and empirical approaches to simulate complex two-phase phenomena. The model includes mass and charge transport, electrochemical reactions, heat transfer, and water transport physics and applies multilayer discretization in the gas diffusion electrode for accuracy. Results from this study offer insights into water management strategies and component design optimization.
   
   Furthermore, the study delves into CLs, critical for catalyst utilization, composed of catalyst particles, ion-conducting polymers, and void spaces forming the triple-phase boundary (TPB). Optimizing CL microstructure to enhance catalyst utilization remains challenging due to limited understanding of interfacial transport. Investigating catalyst inks using rheological and electrical impedance spectroscopy (rheo-EIS) explores ink component interactions, agglomeration, and microstructure evolution. This approach provides systematic insights into engineering optimized catalyst inks and controlling CL microstructure, crucial for improving electrode design and fuel cell performance.

Biography
   Joy Marie Mora holds a B.S. degree in Chemical Engineering and an M.S. degree in Energy Engineering from the University of the Philippines – Diliman. Since joining Prof. Abel Chuang’s research group as a Ph.D. student in Spring 2020, she has focused her studies on advancing fuel cell and electrolysis technology. Her research integrates experimental and simulation/modeling approaches to enhance the performance, efficiency, and durability of fuel cells and electrolyzers. Collaborating closely with national laboratories and industry partners on DOE-funded initiatives, JM aims to contribute significantly to sustainable energy development.