High Specific and Mass Activity for the Oxygen Reduction Reaction for Thin Film Catalysts of Sputtered Pt3Y

Research output: Contribution to journalJournal article – Annual report year: 2017Researchpeer-review

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High Specific and Mass Activity for the Oxygen Reduction Reaction for Thin Film Catalysts of Sputtered Pt3Y. / Lindahl, Niklas; Zamburlini, Eleonora; Feng, Ligang; Gronbeck, Henrik; Escribano, Maria Escudero; Stephens, Ifan; Chorkendorff, Ib; Langhammer, Christoph; Wickman, Bjorn.

In: Advanced Materials Interfaces, Vol. 4, No. 13, 1700311, 2017.

Research output: Contribution to journalJournal article – Annual report year: 2017Researchpeer-review

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@article{ae77ddbc73434b26806ec5898d5fc194,
title = "High Specific and Mass Activity for the Oxygen Reduction Reaction for Thin Film Catalysts of Sputtered Pt3Y",
abstract = "Fuel cells have the potential to play an important role in sustainable energy systems, provided that catalysts with higher activity and stability are developed. In this work, it is found that thin alloy films of single-target cosputtered platinum-yttrium exhibit up to seven times higher specific activity (13.4 ± 0.4 mA cm-2) for the oxygen reduction reaction (ORR) than poly-crystalline platinum, and up to one order of magnitude higher mass activity (3.5 ± 0.3 A mg-1) than platinum nanoparticles. These alloys have the highest reported ORR activity for an as-deposited material, i.e., without any additional chemical or thermal treatment. The films show an improvement in stability over the same materials in nanoparticulate form. Physical characterization shows that the thin films form a platinum overlayer supported on an underlying alloy. The high activity is likely related to compressive strain in that overlayer. As sputtering can be used to mass-produce fuel cell electrodes, the results open new possibilities for the preparation of platinum-rare earth metal alloy catalysts in commercial devices.",
author = "Niklas Lindahl and Eleonora Zamburlini and Ligang Feng and Henrik Gronbeck and Escribano, {Maria Escudero} and Ifan Stephens and Ib Chorkendorff and Christoph Langhammer and Bjorn Wickman",
year = "2017",
doi = "10.1002/admi.201700311",
language = "English",
volume = "4",
journal = "Advanced Materials Interfaces",
issn = "2196-7350",
publisher = "John Wiley & Sons Ltd",
number = "13",

}

RIS

TY - JOUR

T1 - High Specific and Mass Activity for the Oxygen Reduction Reaction for Thin Film Catalysts of Sputtered Pt3Y

AU - Lindahl, Niklas

AU - Zamburlini, Eleonora

AU - Feng, Ligang

AU - Gronbeck, Henrik

AU - Escribano, Maria Escudero

AU - Stephens, Ifan

AU - Chorkendorff, Ib

AU - Langhammer, Christoph

AU - Wickman, Bjorn

PY - 2017

Y1 - 2017

N2 - Fuel cells have the potential to play an important role in sustainable energy systems, provided that catalysts with higher activity and stability are developed. In this work, it is found that thin alloy films of single-target cosputtered platinum-yttrium exhibit up to seven times higher specific activity (13.4 ± 0.4 mA cm-2) for the oxygen reduction reaction (ORR) than poly-crystalline platinum, and up to one order of magnitude higher mass activity (3.5 ± 0.3 A mg-1) than platinum nanoparticles. These alloys have the highest reported ORR activity for an as-deposited material, i.e., without any additional chemical or thermal treatment. The films show an improvement in stability over the same materials in nanoparticulate form. Physical characterization shows that the thin films form a platinum overlayer supported on an underlying alloy. The high activity is likely related to compressive strain in that overlayer. As sputtering can be used to mass-produce fuel cell electrodes, the results open new possibilities for the preparation of platinum-rare earth metal alloy catalysts in commercial devices.

AB - Fuel cells have the potential to play an important role in sustainable energy systems, provided that catalysts with higher activity and stability are developed. In this work, it is found that thin alloy films of single-target cosputtered platinum-yttrium exhibit up to seven times higher specific activity (13.4 ± 0.4 mA cm-2) for the oxygen reduction reaction (ORR) than poly-crystalline platinum, and up to one order of magnitude higher mass activity (3.5 ± 0.3 A mg-1) than platinum nanoparticles. These alloys have the highest reported ORR activity for an as-deposited material, i.e., without any additional chemical or thermal treatment. The films show an improvement in stability over the same materials in nanoparticulate form. Physical characterization shows that the thin films form a platinum overlayer supported on an underlying alloy. The high activity is likely related to compressive strain in that overlayer. As sputtering can be used to mass-produce fuel cell electrodes, the results open new possibilities for the preparation of platinum-rare earth metal alloy catalysts in commercial devices.

U2 - 10.1002/admi.201700311

DO - 10.1002/admi.201700311

M3 - Journal article

VL - 4

JO - Advanced Materials Interfaces

JF - Advanced Materials Interfaces

SN - 2196-7350

IS - 13

M1 - 1700311

ER -