What question did this study set out to answer?

This study aims to develop a model to understand the relationship between microstructure evolution and performance degradation in PEMFCs under dynamic conditions.

February 28, 2026Transformative EnergyOpen Access

A multi-scale model for PEMFC performance degradation coupled with catalyst layer microstructure evolution

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Authors

ZWZhixin Wu YMYutong Mu GZGuobin Zhang

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Overview

Dual-scale modeling demonstrates performance degradation mechanisms in proton exchange membrane fuel cells, suggesting improvements for durability.

Key Points

This study aims to develop a model to understand the relationship between microstructure evolution and performance degradation in PEMFCs under dynamic conditions.
Developed a dual-scale coupled model integrating 1D and 3D performance metrics
Analyzed critical degradation processes including platinum oxidation and carbon corrosion
Studied effects of operating conditions on performance degradation
Optimal operating temperature identified as 80°C for balance between kinetics and stability
Elevated upper potential limit to 1.1 V increases platinum dissolution and accelerates performance decay
Low platinum loading heightens mass transport polarization, leading to greater performance losses at high current densities

Cite This Study

Wu et al. (2026) studied this question.

synapsesocial.com/papers/69a285da0a974eb0d3c00cfd https://doi.org/10.1016/j.tegy.2026.100003

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February 28, 2026Transformative EnergyOpen Access

A multi-scale model for PEMFC performance degradation coupled with catalyst layer microstructure evolution

View Full Paper

Ask AI

Bookmark

Authors

ZWZhixin Wu YMYutong Mu GZGuobin Zhang

Discussion

Member takes

Overview

Dual-scale modeling demonstrates performance degradation mechanisms in proton exchange membrane fuel cells, suggesting improvements for durability.

Key Points

This study aims to develop a model to understand the relationship between microstructure evolution and performance degradation in PEMFCs under dynamic conditions.
Developed a dual-scale coupled model integrating 1D and 3D performance metrics
Analyzed critical degradation processes including platinum oxidation and carbon corrosion
Studied effects of operating conditions on performance degradation
Optimal operating temperature identified as 80°C for balance between kinetics and stability
Elevated upper potential limit to 1.1 V increases platinum dissolution and accelerates performance decay
Low platinum loading heightens mass transport polarization, leading to greater performance losses at high current densities

Cite This Study

Wu et al. (2026) studied this question.

synapsesocial.com/papers/69a285da0a974eb0d3c00cfd https://doi.org/10.1016/j.tegy.2026.100003

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