A Materials-Based Mitigation Strategy for SU/SD in PEM Fuel Cells: Properties and Performance-Specific Testing of IrRu OER Catalysts

Autor:	Liliana Atanasoska, David A. Cullen, Gregory M. Haugen, George D. Vernstrom, Radoslav Atanasoski
Rok vydání:	2013
Předmět:	inorganic chemicals Chemistry Oxygen evolution Proton exchange membrane fuel cell chemistry.chemical_element Direct-ethanol fuel cell Durability Cathode Ruthenium Catalysis law.invention Fuel Technology Chemical engineering law Materials Chemistry Electrochemistry Forensic engineering Iridium
Zdroj:	ECS Electrochemistry Letters. 2:F25-F28
ISSN:	2162-8734 2162-8726
DOI:	10.1149/2.006303eel
Popis:	Catalysts that enable proton exchange membrane fuel cells to weather the damaging conditions experienced during transient periods of fuel starvation have been developed. The addition of minute amounts of iridium and ruthenium to the cathode enhances the oxygen evolution reaction (OER) during start-up/shutdown events, thus lowering the peak cell voltage closer to the onset of water oxidation. The catalyst loadings ranged from 1 to 10 g/cm2, but showed surprisingly high activity and durability. At such low loadings, it is possible to fully integrate the OER catalysts with negligible interference on fuel cell performance and a marginal increase in catalyst cost.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::cdc235fde2a3cdee3358ea96d30dd58a https://doi.org/10.1149/2.006303eel Zobrazit plný text záznamu