Enhancement of oxygen transport in the catalyst layer of proton exchange membrane fuel cell via heat treatment

Yuwei Liang; Yong Feng; Huiyuan Li; Miaomiao He; Daihui Yang; Shuiyuan Shen; Xiaohui Yan; Junliang Zhang

doi:10.1117/12.3033870

5 July 2024 Enhancement of oxygen transport in the catalyst layer of proton exchange membrane fuel cell via heat treatment

Yuwei Liang, Yong Feng, Huiyuan Li, Miaomiao He, Daihui Yang, Shuiyuan Shen, Xiaohui Yan, Junliang Zhang

Author Affiliations +

Proceedings Volume 13183, International Conference on Optoelectronic Information and Functional Materials (OIFM 2024); 131831U (2024) https://doi.org/10.1117/12.3033870
Event: The 3rd International Conference on Optoelectronic Information and Functional Materials (OIFM 2024), 2024, Wuhan, China

Abstract

Lowering the Pt loading would decrease proton exchange membrane fuel cell (PEMFC) cost, but inevitably increase local oxygen transport resistance and cause performance loss at high current densities. To enhance the local oxygen transport within the catalyst layer, the heat treatment method of the electrode is proposed to regulate ionomer microstructure. After heat-treating the electrode over the ionomer glass-transition temperature, the local oxygen transport resistance decreases and the limiting current density enlarges, which in turn improves the cell performance at high current densities, confirming the enhancement of oxygen transport. Based on the AFM and contact angle test results of thin-film ionomers, it can be further confirmed that the phase-separation within thin-film ionomers is enhanced after heat treatment that builds more oxygen transport pathways inside the ionomer. This work offers a simple and effective method to enhance the local oxygen transport process and is beneficial for future high performance PEMFC development.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Yuwei Liang, Yong Feng, Huiyuan Li, Miaomiao He, Daihui Yang, Shuiyuan Shen, Xiaohui Yan, and Junliang Zhang "Enhancement of oxygen transport in the catalyst layer of proton exchange membrane fuel cell via heat treatment", Proc. SPIE 13183, International Conference on Optoelectronic Information and Functional Materials (OIFM 2024), 131831U (5 July 2024); https://doi.org/10.1117/12.3033870

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available