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Hydrogen absorption in the core/shell interface of Pd/Pt nanoparticles

Author:
Kobayashi, Hirokazu  Yamauchi, Miho  Kitagawa, Hiroshi  Kubota, Yoshiki  Kato, Kenichi  Takata, Masaki  


Journal:
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY


Issue Date:
2008


Abstract(summary):

We have investigated the hydrogen absorption behavior of Pd/Pt nanoparticles with a core/shell-type structure. From the results of the hydrogen pressure-composition (PC) isotherm and solid-state H-2 NMR measurements, it was revealed that the Pd/Pt nanoparticles can absorb hydrogen, and most of the absorbed hydrogen atoms are situated around the interfacial region between the Pd core and the Pt shell of the Pd/Pt nanoparticles, indicating that the core/shell boundary plays an important role in the formation of the hydride phase of the Pd/Pt nanoparficles.


Page:
1818---+


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