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1887
Volume 62, Issue 2
  • ISSN: 2056-5135

Abstract

Chemically regenerative redox cathode (CRRC) polymer electrolyte fuel cells (PEFCs) are attracting more interest as a platinum-free PEFC technology. These fuel cells utilise a liquid catalyst or catholyte, to perform the indirect reduction of oxygen, eliminating the major degradation mechanisms that plague PEFC durability. A key component of a CRRC PEFC system is the catholyte. This article reports a thorough study of the effect of catholyte concentration and temperature on CRRC PEFC system performance for HPVMoO and NaHPVMoO, two promising polyoxometalate (POM)-based catholytes. The results suggest 80°C and a catholyte concentration of 0.3 M provide the optimum performance for both HPVMoO and NaHPVMoO (for ambient pressure operation).

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2018-01-01
2024-12-22
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