Evaluation of Electrolyte Additives for High-Temperature Polymer Electrolyte Fuel Cells

Mack F, Galbiati S, Gogel V, Jörissen L, Zeis R (2016)

Publication Type: Journal article

Publication year: 2016

Journal

ChemElectroChem Wiley

Book Volume: 3

Pages Range: 770-773

Journal Issue: 5

DOI: 10.1002/celc.201500561

Abstract

In this study, perfluoroalkyl phosphonic acids CF3PO3H2 and C2F5PO3H2 are investigated as additives to phosphoric acid to improve the oxygen reduction reaction (ORR) of high-temperature polymer electrolyte (PEM) fuel cells. A comprehensive characterization of acid mixtures composed of 20wt% additive and 80wt% concentrated phosphoric acid is presented, ranging from exsitu measurements to insitu tests in operating high-temperature PEM fuel cells. CF3PO3H2 and C2F5PO3H2 additives exhibit excellent thermal stability and are found to improve the wetting of the electrode. The fuel cell's output power increases consistently (240/270mWcm^-2 vs. 180mWcm^-2), owing to a decrease in the oxygen reduction reaction charge-transfer resistance.

Authors with CRIS profile

Roswitha Zeis

Involved external institutions

Helmholtz Institut Ulm

Germany (DE) Zentrum für Sonnenenergie- und Wasserstoff-Forschung (ZSW)

Germany (DE)

How to cite

APA:

Mack, F., Galbiati, S., Gogel, V., Jörissen, L., & Zeis, R. (2016). Evaluation of Electrolyte Additives for High-Temperature Polymer Electrolyte Fuel Cells. ChemElectroChem, 3(5), 770-773. https://doi.org/10.1002/celc.201500561

MLA:

Mack, Florian, et al. "Evaluation of Electrolyte Additives for High-Temperature Polymer Electrolyte Fuel Cells." ChemElectroChem 3.5 (2016): 770-773.

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