Sulfonated covalent organic frameworks for mitigating phosphate poisoning in high-temperature proton exchange membrane fuel cells
Abstract
High-temperature proton exchange membrane fuel cells (HT-PEMFCs) exhibit high efficiency and fuel adaptability but face Pt cathode catalyst degradation caused by phosphate poisoning. We mitigate this by integrating a sulfonated covalent organic framework (COF) into Pt catalyst. Electrochemical tests demonstrate enhanced catalytic activity under high-phosphate-concentration conditions after introducing sulfonated COF.
- This article is part of the themed collection: Chemistry at the Forefront of the Sustainable Energy Transition