Operando synchrotron-based X-ray study and intervention approaches of graphene-related-materials for investigating the performance and durability of HT-PEMFC

Jianuo Chen; Maria Perez-Page; Christopher M.A. Parlett; Zunmin Guo; Xiaochen Yang; Zeyu Zhou; Heng Zhai; Stuart Bartlett; Thomas S. Miller; Stuart M. Holmes

doi:10.1016/j.cej.2024.150670

Operando synchrotron-based X-ray study and intervention approaches of graphene-related-materials for investigating the performance and durability of HT-PEMFC

Jianuo Chen, Maria Perez-Page^*, Christopher M.A. Parlett, Zunmin Guo, Xiaochen Yang, Zeyu Zhou, Heng Zhai, Stuart Bartlett, Thomas S. Miller, Stuart M. Holmes

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

The application of high-temperature proton exchange membrane fuel cells (HT-PEMFCs) addresses challenges in water management, fuel purity, and overheating under high current density. However, phosphoric acid (PA) migration hinders their development. This study uses synchrotron-based X-ray fluorescence spectroscopy to investigate PA and catalyst migration. Interventions with single-layer graphene and electrochemically exfoliated graphene oxide improve performance and durability. X-ray absorption spectroscopy provides insights into relevant mechanisms, advancing understanding of membrane electrode assembly preparation and the intricate influences of PA and catalyst migration on performance and durability in HT-PEMFCs.

Original language	English
Article number	150670
Journal	Chemical Engineering Journal
Volume	487
DOIs	https://doi.org/10.1016/j.cej.2024.150670
Publication status	Published - 1 May 2024

Keywords

Graphene
HT-PEMFC
Synchrotron
X-ray absorption spectroscopy
X-ray fluorescence mapping

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10.1016/j.cej.2024.150670

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Chen, J., Perez-Page, M., Parlett, C. M. A., Guo, Z., Yang, X., Zhou, Z., Zhai, H., Bartlett, S., Miller, T. S., & Holmes, S. M. (2024). Operando synchrotron-based X-ray study and intervention approaches of graphene-related-materials for investigating the performance and durability of HT-PEMFC. Chemical Engineering Journal, 487, Article 150670. https://doi.org/10.1016/j.cej.2024.150670

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title = "Operando synchrotron-based X-ray study and intervention approaches of graphene-related-materials for investigating the performance and durability of HT-PEMFC",

abstract = "The application of high-temperature proton exchange membrane fuel cells (HT-PEMFCs) addresses challenges in water management, fuel purity, and overheating under high current density. However, phosphoric acid (PA) migration hinders their development. This study uses synchrotron-based X-ray fluorescence spectroscopy to investigate PA and catalyst migration. Interventions with single-layer graphene and electrochemically exfoliated graphene oxide improve performance and durability. X-ray absorption spectroscopy provides insights into relevant mechanisms, advancing understanding of membrane electrode assembly preparation and the intricate influences of PA and catalyst migration on performance and durability in HT-PEMFCs.",

keywords = "Graphene, HT-PEMFC, Synchrotron, X-ray absorption spectroscopy, X-ray fluorescence mapping",

author = "Jianuo Chen and Maria Perez-Page and Parlett, {Christopher M.A.} and Zunmin Guo and Xiaochen Yang and Zeyu Zhou and Heng Zhai and Stuart Bartlett and Miller, {Thomas S.} and Holmes, {Stuart M.}",

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doi = "10.1016/j.cej.2024.150670",

language = "English",

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T1 - Operando synchrotron-based X-ray study and intervention approaches of graphene-related-materials for investigating the performance and durability of HT-PEMFC

AU - Chen, Jianuo

AU - Perez-Page, Maria

AU - Parlett, Christopher M.A.

AU - Guo, Zunmin

AU - Yang, Xiaochen

AU - Zhou, Zeyu

AU - Zhai, Heng

AU - Bartlett, Stuart

AU - Miller, Thomas S.

AU - Holmes, Stuart M.

PY - 2024/5/1

Y1 - 2024/5/1

N2 - The application of high-temperature proton exchange membrane fuel cells (HT-PEMFCs) addresses challenges in water management, fuel purity, and overheating under high current density. However, phosphoric acid (PA) migration hinders their development. This study uses synchrotron-based X-ray fluorescence spectroscopy to investigate PA and catalyst migration. Interventions with single-layer graphene and electrochemically exfoliated graphene oxide improve performance and durability. X-ray absorption spectroscopy provides insights into relevant mechanisms, advancing understanding of membrane electrode assembly preparation and the intricate influences of PA and catalyst migration on performance and durability in HT-PEMFCs.

AB - The application of high-temperature proton exchange membrane fuel cells (HT-PEMFCs) addresses challenges in water management, fuel purity, and overheating under high current density. However, phosphoric acid (PA) migration hinders their development. This study uses synchrotron-based X-ray fluorescence spectroscopy to investigate PA and catalyst migration. Interventions with single-layer graphene and electrochemically exfoliated graphene oxide improve performance and durability. X-ray absorption spectroscopy provides insights into relevant mechanisms, advancing understanding of membrane electrode assembly preparation and the intricate influences of PA and catalyst migration on performance and durability in HT-PEMFCs.

KW - Graphene

KW - HT-PEMFC

KW - Synchrotron

KW - X-ray absorption spectroscopy

KW - X-ray fluorescence mapping

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U2 - 10.1016/j.cej.2024.150670

DO - 10.1016/j.cej.2024.150670

M3 - Article

AN - SCOPUS:85189452134

SN - 1385-8947

VL - 487

JO - Chemical Engineering Journal

JF - Chemical Engineering Journal

M1 - 150670

ER -

Operando synchrotron-based X-ray study and intervention approaches of graphene-related-materials for investigating the performance and durability of HT-PEMFC

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Keywords

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