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Endurance study of a solid polymer electrolyte direct ethanol fuel cell based on a Pt–Sn anode catalyst

2013; Elsevier BV; Volume: 38; Issue: 26 Linguagem: Inglês

10.1016/j.ijhydene.2013.04.162

1879-3487

Sabrina Campagna Zignani, Vincenzo Baglio, José J. Linares, Giuseppe Monforte, Ernesto R. González, A.S. Aricò,

Advancements in Solid Oxide Fuel Cells

The performance decay of a solid polymer electrolyte direct ethanol fuel cell (DEFC) based on a Pt3Sn1/C anode catalyst during an endurance test has been investigated. The effect of different cell shut-down procedures on the cycled behaviour of the DEFC has been studied. To get specific insights into the degradation mechanism, polarization and ac-impedance spectroscopy studies have been carried out. These analyses have been complemented by post-operation transmission electron microscopy and X-ray diffraction studies. The combination of these techniques has allowed to get information on recoverable and unrecoverable losses. This provides a basis for further improvement of DEFC components.