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junkpengli

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junkpengli: »ØÌûÖö¥ 2012-11-17 03:07:36
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junkpengli

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30Â¥: Originally posted by geegee at 2012-11-08 10:01:08
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Structurally ordered intermetallic platinum¨Ccobalt core¨Cshell nanoparticles with enhanced activity and stability as oxygen reduction electrocatalysts
Deli Wang, Huolin L. Xin, Robert Hovden, Hongsen Wang, Yingchao Yu, David A. Muller, Francis J. DiSalvo & H¨¦ctor D. Abruña
Published online: 28 October 2012 | doi:10.1038/nmat3458
Enhancing and optimizing the performance and durability of nanocatalysts for the oxygen reduction reaction is crucial for fuel-cell applications. A class of Pt¨CCo nanocatalysts consisting of ordered Pt3Co intermetallic cores with a 2¨C3 atomic-layer-thick platinum shell now exhibit a large increase in mass activity and specific activity when compared with disordered alloy nanoparticles.
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