Palladium nanoparticles as catalysts for Li-O2 battery cathodes

Hugh Geaney; Gillian Collins; Colm Glynn; Justin D. Holmes; Colm O'Dwyer

doi:10.1149/05812.0021ecst

Palladium nanoparticles as catalysts for Li-O₂ battery cathodes

Hugh Geaney, Gillian Collins, Colm Glynn, Justin D. Holmes, Colm O'Dwyer

Research output: Contribution to journal › Article › peer-review

Abstract

This report investigates the influence of electrolyte selection and the addition of Pd nanoparticle catalysts on the morphology of discharge products for Li-O₂ battery cathodes. Super P carbon cathodes (on stainless steel current collectors) were subjected to single discharges at various applied currents (50 μA, 100 μA, 250 μA) using either a sulfolane/LiTFSI or TEGDME/LITFSI electrolyte. The morphologies of the discharge product were noted to be different for each electrolyte while there was also a clear variation with respect to applied current. Finally, the impact of adding 25% (by weight) Pd nanoparticle catalysts to the cathodes was investigated. The results obtained show clearly that the nature of discharge products for Li-O₂ battery cathodes are strongly dependent on applied current, electrolyte choice and the addition of a catalyst material.

Original language	English
Pages (from-to)	21-29
Number of pages	9
Journal	ECS Transactions
Volume	58
Issue number	12
DOIs	https://doi.org/10.1149/05812.0021ecst
Publication status	Published - 2013
Externally published	Yes

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abstract = "This report investigates the influence of electrolyte selection and the addition of Pd nanoparticle catalysts on the morphology of discharge products for Li-O2 battery cathodes. Super P carbon cathodes (on stainless steel current collectors) were subjected to single discharges at various applied currents (50 μA, 100 μA, 250 μA) using either a sulfolane/LiTFSI or TEGDME/LITFSI electrolyte. The morphologies of the discharge product were noted to be different for each electrolyte while there was also a clear variation with respect to applied current. Finally, the impact of adding 25% (by weight) Pd nanoparticle catalysts to the cathodes was investigated. The results obtained show clearly that the nature of discharge products for Li-O2 battery cathodes are strongly dependent on applied current, electrolyte choice and the addition of a catalyst material.",

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AU - Geaney, Hugh

AU - Collins, Gillian

AU - Glynn, Colm

AU - Holmes, Justin D.

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PY - 2013

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N2 - This report investigates the influence of electrolyte selection and the addition of Pd nanoparticle catalysts on the morphology of discharge products for Li-O2 battery cathodes. Super P carbon cathodes (on stainless steel current collectors) were subjected to single discharges at various applied currents (50 μA, 100 μA, 250 μA) using either a sulfolane/LiTFSI or TEGDME/LITFSI electrolyte. The morphologies of the discharge product were noted to be different for each electrolyte while there was also a clear variation with respect to applied current. Finally, the impact of adding 25% (by weight) Pd nanoparticle catalysts to the cathodes was investigated. The results obtained show clearly that the nature of discharge products for Li-O2 battery cathodes are strongly dependent on applied current, electrolyte choice and the addition of a catalyst material.

AB - This report investigates the influence of electrolyte selection and the addition of Pd nanoparticle catalysts on the morphology of discharge products for Li-O2 battery cathodes. Super P carbon cathodes (on stainless steel current collectors) were subjected to single discharges at various applied currents (50 μA, 100 μA, 250 μA) using either a sulfolane/LiTFSI or TEGDME/LITFSI electrolyte. The morphologies of the discharge product were noted to be different for each electrolyte while there was also a clear variation with respect to applied current. Finally, the impact of adding 25% (by weight) Pd nanoparticle catalysts to the cathodes was investigated. The results obtained show clearly that the nature of discharge products for Li-O2 battery cathodes are strongly dependent on applied current, electrolyte choice and the addition of a catalyst material.

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Palladium nanoparticles as catalysts for Li-O₂ battery cathodes

Abstract

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