D. Dong
Rowan University,
United States
Keywords: PEM fuel cells, transistor sensors, membrane degradation, fluoride ion detection, PFAS monitoring, real-time diagnostics, environmental sustainability
Summary:
Proton exchange membrane (PEM) fuel cells are central to hydrogen-based sustainable energy technologies, but their long-term performance is hindered by membrane degradation, which releases fluoride ions as a key indicator of failure. This work highlights the development of advanced transistor-based sensors designed for real-time, in-situ detection of fluoride ions (10 ppb). These sensors provide a portable, cost-effective, and highly sensitive solution for monitoring degradation processes, enabling optimized operational protocols and the development of more durable materials. Additionally, the increasing focus on per- and polyfluoroalkyl substances (PFAS) regulation requires robust tools for monitoring these persistent environmental pollutants. This research incorporates transistor-based sensors specifically engineered to detect PFAS concentrations directly, ensuring compliance with stringent environmental standards in PEM fuel cells. By integrating PFAS detection and fluoride ion monitoring at the exhaust, these sensors address both performance and sustainability challenges in PEM fuel cell systems. This combined sensor technology offers a transformative pathway for advancing PEM fuel cell diagnostics while aligning with global environmental and regulatory goals, contributing to a cleaner and more sustainable energy future.