Lifetime of Catalyst under Voltage Cycling in Polymer Electrolyte Fuel Cell Due to Platinum Oxidation and Dissolution

Victor A. Kovtunenko; Larisa Karpenko-Jereb

doi:10.3390/technologies9040080

journal article Open Access Oct 31, 2021

Lifetime of Catalyst under Voltage Cycling in Polymer Electrolyte Fuel Cell Due to Platinum Oxidation and Dissolution

Victor A. Kovtunenko

Larisa Karpenko-Jereb

Technologies Vol. 9 No. 4 pp. 80 · MDPI AG

View at Publisher Save 10.3390/technologies9040080

Abstract

The durability of a platinum catalyst in a polymer electrolyte membrane fuel cell is studied at various operating conditions with respect to the different electric potential difference (called voltage) applied in accelerated stress tests. The electrochemical reactions of Pt ion dissolution and Pt oxide coverage of the catalyst lead to the degradation of platinum described by a one-dimensional Holby–Morgan model. The theoretical study of the underlying reaction–diffusion system with the nonlinear reactions is presented by numerical simulations which allow to predict a lifetime of the catalyst under applied voltage cycling. The computer simulation investigates how the Pt mass loss depends on the voltage slope and the upper potential level in cycles.

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Metrics

9

Citations

20

References

Details

Published: Oct 31, 2021
Vol/Issue: 9(4)
Pages: 80
License: View

Authors

V

Victor A. Kovtunenko

Institute for Mathematics and Scientific Computing, Karl-Franzens University of Graz, NAWI Graz, Heinrichstr. 36, 8010 Graz, Austria; Lavrentyev Institute of Hydrodynamics, Siberian Division of the Russian Academy of Sciences, 630090 Novosibirsk, Russia

L

Larisa Karpenko-Jereb

Scientific Consulting, 8046 Stattegg, Austria

Funding

European Resuscitation Council Award: 668998 OCLOC

Cite This Article

Victor A. Kovtunenko, Larisa Karpenko-Jereb (2021). Lifetime of Catalyst under Voltage Cycling in Polymer Electrolyte Fuel Cell Due to Platinum Oxidation and Dissolution. Technologies, 9(4), 80. https://doi.org/10.3390/technologies9040080

Lifetime of Catalyst under Voltage Cycling in Polymer Electrolyte Fuel Cell Due to Platinum Oxidation and Dissolution

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