Beyond 1.0 W cm−2Performance without Platinum: The Beginning of a New Era in Anion Exchange Membrane Fuel Cells

TJ Omasta, X Peng, HA Miller, F Vizza… - Journal of The …, 2018 - iopscience.iop.org
Journal of The Electrochemical Society, 2018iopscience.iop.org
This work reports a high power, stable, completely Pt-free anion exchange membrane fuel
cell (AEMFC) comprised of highly active catalysts–Pd-CeO 2/C at the anode and PdCu/C
alloy at the cathode for the hydrogen oxidation and oxygen reduction reactions, respectively.
The resulting AEMFC shows outstanding performance, reaching a peak power density of 1
W cm− 2, twice the value of the best performance for Pt-free cells reported in the literature to
date. The AEMFC also shows a low voltage degradation rate when operated continuously …
Abstract
This work reports a high power, stable, completely Pt-free anion exchange membrane fuel cell (AEMFC) comprised of highly active catalysts–Pd-CeO 2/C at the anode and PdCu/C alloy at the cathode for the hydrogen oxidation and oxygen reduction reactions, respectively. The resulting AEMFC shows outstanding performance, reaching a peak power density of 1 W cm− 2, twice the value of the best performance for Pt-free cells reported in the literature to date. The AEMFC also shows a low voltage degradation rate when operated continuously for more than 100 h at a constant 0.5 A cm− 2, with a voltage degradation rate of only 2.5 mV h-1, which is excellent when compared to nearly all of the AEMFCs reported in the literature to date. This combination of high performance and high stability in the absence of Pt-based catalysts represents a significant landmark in the progress of the AEMFC technology.
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