Bulk Metallic Glass Nanowire Architecture for Electrochemical Applications

Carmo, Marcelo and Sekol, Ryan C. and Ding, Shiyan and Kumar, Golden and Schroers, Jan and Taylor, André D.. (2011) Bulk Metallic Glass Nanowire Architecture for Electrochemical Applications. ACS Nano, 5 (4). p. 2979. ISSN 1936-0851

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Electrochemical devices have the potential to pose powerful solutions in addressing rising energy demands and counteracting environmental problems. However, currently, these devices suffer from meager performance due to poor efficiency and durability of the catalysts. These suboptimal characteristics have hampered widespread commercialization. Here we report on Pt57.5Cu14.7Ni5.3P22.5 bulk metallic glass (Pt-BMG) nanowires, whose novel architecture and outstanding durability circumvent the performance problems of electrochemical devices. We fabricate Pt-BMG nanowires using a facile and scalable nanoimprinting approach to create dealloyed high surface area nanowire catalysts with high conductivity and activity for methanol and ethanol oxidation. After 1000 cycles, these nanowires maintain 96% of their performance—2.4 times as much as conventional Pt/C catalysts. Their properties make them ideal candidates for widespread commercial use such as for energy conversion/storage and sensors.

Item Type: Article
InterNano Taxonomy: Nanoscale Objects and Nanostructured Materials
Areas of Application > Energy and Utilities
Areas of Application > Environment and Civil Infrastructure
Collections: Nanomanufacturing Research Collection
Depositing User: Amulya Gullapalli
Date Deposited: 13 Jul 2011 17:08
Last Modified: 13 Jul 2011 17:08
URI: http://eprints.internano.org/id/eprint/636

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