What question did this study set out to answer?

Investigate a new strategy to mitigate performance degradation of Pt catalysts in high-temperature proton exchange membrane fuel cells due to phosphoric acid poisoning.

February 8, 2026Advanced Energy Materials

Electrostatic Repulsion Activates Durable Pt Catalysts for HT‐PEMFCs

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Authors

LZLi ZhangKunming University of Science and Technology JSJiawei ShiKunming University of Science and Technology HCHansong ChengChina University of Geosciences

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Overview

Research demonstrates improved durability and performance of Pt catalysts in high-temperature proton exchange membrane fuel cells, highlighting a novel electrostatic strategy.

Key Points

Investigate a new strategy to mitigate performance degradation of Pt catalysts in high-temperature proton exchange membrane fuel cells due to phosphoric acid poisoning.
Developed electrostatic repulsion strategy to repel poisoning species from Pt active sites.
Incorporated oxidized sulfur (SOx) groups into carbon support materials.
Conducted spectroscopic analyses and density functional theory calculations to evaluate Pt-support interactions.
Pt/C-SO catalyst exhibits a maximum power density of 1166 mW cm−2.
Maintains stable operation for over 500 hours at 500 mA cm−2.
Achieves a voltage decay rate of 26 µV h−1, significantly lower than commercial Pt/C's 1075 µV h−1.

Cite This Study

Zhang et al. (2026) studied this question.

synapsesocial.com/papers/698827f00fc35cd7a8846eef https://doi.org/10.1002/aenm.70724

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February 8, 2026Advanced Energy Materials

Electrostatic Repulsion Activates Durable Pt Catalysts for HT‐PEMFCs

View Full Paper

Ask AI

Bookmark

Authors

LZLi ZhangKunming University of Science and Technology JSJiawei ShiKunming University of Science and Technology HCHansong ChengChina University of Geosciences

Discussion

Member takes

Overview

Research demonstrates improved durability and performance of Pt catalysts in high-temperature proton exchange membrane fuel cells, highlighting a novel electrostatic strategy.

Key Points

Investigate a new strategy to mitigate performance degradation of Pt catalysts in high-temperature proton exchange membrane fuel cells due to phosphoric acid poisoning.
Developed electrostatic repulsion strategy to repel poisoning species from Pt active sites.
Incorporated oxidized sulfur (SOx) groups into carbon support materials.
Conducted spectroscopic analyses and density functional theory calculations to evaluate Pt-support interactions.
Pt/C-SO catalyst exhibits a maximum power density of 1166 mW cm−2.
Maintains stable operation for over 500 hours at 500 mA cm−2.
Achieves a voltage decay rate of 26 µV h−1, significantly lower than commercial Pt/C's 1075 µV h−1.

Cite This Study

Zhang et al. (2026) studied this question.

synapsesocial.com/papers/698827f00fc35cd7a8846eef https://doi.org/10.1002/aenm.70724

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