Pt/Ti1 – xRuxO2 – δ Cathodic Electrocatalysts for Fuel Cells
In this paper, we study the electrocatalytic activity and stability of materials in the Pt/Ti 1 – x Ru x O 2 – δ system, in oxygen electroreduction reactions, including under operating conditions in a fuel cell (FC). All the obtained electrocatalytic materials are shown to be stable in the e...
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Veröffentlicht in: | Nanotechnologies in Russia 2020-11, Vol.15 (11-12), p.701-707 |
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Hauptverfasser: | , , , , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | In this paper, we study the electrocatalytic activity and stability of materials in the Pt/Ti
1 –
x
Ru
x
O
2 – δ
system, in oxygen electroreduction reactions, including under operating conditions in a fuel cell (FC). All the obtained electrocatalytic materials are shown to be stable in the electrode potential range of operation of a hydrogen-air FC, while the electroreduction of oxygen proceeds mainly by a four-electron mechanism. The power characteristics of the FC with the obtained electrocatalyst are comparable to those of a FC with a commercial electrocatalyst, while the stability of the obtained electrocatalysts is 5–6 times higher than that of Pt/C catalysts. |
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ISSN: | 1995-0780 1995-0799 |
DOI: | 10.1134/S199507802006004X |