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Chemical Communications

Sulfonated covalent organic frameworks for mitigating phosphate poisoning in high-temperature proton exchange membrane fuel cells

Ruiyu Zhang,   Pengyu Song,   Mengmeng Zhu  and  Lu Wang  

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.

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DOI
https://doi.org/10.1039/D5CC02860D
Article type
Communication
Submitted
20 May 2025
Accepted
15 Oct 2025
First published
16 Oct 2025

Chem. Commun., 2025, Accepted Manuscript

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Sulfonated covalent organic frameworks for mitigating phosphate poisoning in high-temperature proton exchange membrane fuel cells

R. Zhang, P. Song, M. Zhu and L. Wang, Chem. Commun., 2025, Accepted Manuscript , DOI: 10.1039/D5CC02860D

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