Chen, J;
Perez-Page, M;
Parlett, CMA;
Guo, Z;
Yang, X;
Zhou, Z;
Zhai, H;
... Holmes, SM; + view all
(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. 10.1016/j.cej.2024.150670.
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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.
| Type: | Article |
|---|---|
| Title: | Operando synchrotron-based X-ray study and intervention approaches of graphene-related-materials for investigating the performance and durability of HT-PEMFC |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.cej.2024.150670 |
| Publisher version: | http://dx.doi.org/10.1016/j.cej.2024.150670 |
| Language: | English |
| Additional information: | © 2024 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). |
| Keywords: | HT-PEMFC, Graphene, Synchrotron, X-ray fluorescence mapping, X-ray absorption spectroscopy |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10190854 |
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