Published October 11, 2010
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Journal Article
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Surface segregation of bimetallic alloys in nanoscale confinement
Abstract
The surface segregation of Pt atoms in liquid bimetallic alloys confined in carbon nanotube cavities was studied using molecular dynamics simulations. Considerable enrichment in the Pt-atom surface density was found to occur in Pt alloys, when the complementary metal has surface energy higher than Pt and simultaneously metal-wall interaction strength lower than that of Pt with the confining wall. The results suggest that solidification of liquid binary alloys in nanochannels could produce core-shell nanorods with the shell enriched in one of the components for catalytic and other applications.
Additional Information
© 2010 American Institute of Physics. Received 21 July 2010; accepted 15 September 2010; published online 12 October 2010. K.P.G. is grateful to ETH-Zürich for a visiting professorship grant. Computational support from the Brutus Cluster at ETH-Zurich is acknowledged. This work was supported by the Swiss National Supercomputing Centre-CSCS under project ID s243.Attached Files
Published - Hu2010p11798Appl_Phys_Lett.pdf
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Hu2010p11798Appl_Phys_Lett.pdf
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Additional details
- Eprint ID
- 20735
- Resolver ID
- CaltechAUTHORS:20101109-100315498
- s243
- Swiss National Supercomputing Centre-CSCS
- Created
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2010-11-18Created from EPrint's datestamp field
- Updated
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2021-11-09Created from EPrint's last_modified field