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Evaluation of methods to increase the oxygen partial pressure in PEM fuel cells

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Abstract

This paper compares the performance of a hydrogen–air fuel cell system with the oxygen electrode operating under different conditions of pressure, stoichiometry and oxygen enrichment. This paper shows that the net power density can be improved using a pressurized or oxygen enrichment system when the oxygen electrode is limited by oxygen mass transfer. If the current density is determined by kinetics, then the ambient pressure system has a higher net power density at the same fuel efficiency.

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Authors and Affiliations

  1. Center for Electrochemical Systems and Hydrogen Research, Texas A&M University, 238 WERC, College Station, TX, 77843-3402, USA

    C. Boyer, S. Gamburzev & A.J. Appleby

Authors
  1. C. Boyer
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  2. S. Gamburzev
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  3. A.J. Appleby
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Boyer, C., Gamburzev, S. & Appleby, A. Evaluation of methods to increase the oxygen partial pressure in PEM fuel cells. Journal of Applied Electrochemistry 29, 1095–1102 (1999). https://doi.org/10.1023/A:1003621024245

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  • DOI: https://doi.org/10.1023/A:1003621024245

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