Sulfonated covalent organic frameworks for mitigating phosphate poisoning in high-temperature proton exchange
Ruiyu Zhang1, Pengyu Song1, Mengmeng Zhu1
1Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education, Frontiers Science Center for High Energy Material, Advanced Technology Research Institute (Jinan), School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China. luwang@bit.edu.cn.
None:
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 a Pt catalyst. Electrochemical tests demonstrate enhanced catalytic activity under high-phosphate-concentration conditions after introducing the sulfonated COF.
Related Concept Videos
Ion Exchange
Factors Affecting Solubility


