Intermediate temperature PEFC's with Nafion® 211 membrane electrolytes: an experimental and numerical study

Oliver Fernihough, Mohammed S. Ismail, Ahmad El-Kharouf

Research output: Contribution to journalArticlepeer-review

Abstract

This paper evaluates the performance of Nafion 211 at elevated temperatures up to 120 ̊C using an experimentally validated model. Increasing fuel cell operating temperature could have many key benefits at the cell and system levels. However, current research excludes this due to issues with membrane durability. Modelling is used to investigate complex systems to gain further information, which is challenging to get experimentally. Nafion 211 is shown to have some interesting characteristics at elevated temperatures previously unreported, the first of which is the highest performance reported is at 100°C and 100% relative humidity. The model was trained to the experimental data and then used to predict the behaviour in the membrane region to understand how the fuel cell performs at varying temperatures and pressures. The model showed that the best membrane performance comes from 100°C operating temperature, with much better performance yielded from a higher pressure of 3 bar.
Original languageEnglish
Journalmembranes
DOIs
Publication statusPublished - 2022

Keywords

  • Polymer electrolyte fuel cell
  • proton exchange membrane
  • fuel cell modelling
  • nafion
  • Intermediate temperature
  • Intermediate Temperature Polymer Electrolyte Fuel Cells (IT-PEFC)

ASJC Scopus subject areas

  • Energy Engineering and Power Technology

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