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  Confined-space alloying of nanoparticles for the synthesis of efficient PtNi fuel-cell catalysts

Baldizzone, C., Mezzavilla, S., Carvalho, H. W. P., Meier, J. C., Schuppert, A. K., Heggen, M., et al. (2014). Confined-space alloying of nanoparticles for the synthesis of efficient PtNi fuel-cell catalysts. Angewandte Chemie International Edition, 53(51), 14250-14254. doi:10.1002/anie.201406812.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0024-C67C-B Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0025-C516-7
Genre: Journal Article

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 Creators:
Baldizzone, Claudio1, Author              
Mezzavilla, Stefano2, Author              
Carvalho, Hudson W. P.3, Author              
Meier, Josef Christian1, Author              
Schuppert, Anna Katharina1, Author              
Heggen, Marc4, Author              
Galeano Nuñez, Diana Carolina2, Author              
Grunwaldt, Jan-Dierk3, Author              
Schüth, Ferdi2, Author              
Mayrhofer, Karl J. J.1, Author              
Affiliations:
1Electrocatalysis, Interface Chemistry and Surface Engineering, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_1863354              
2Research Department Schüth, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445589              
3Institute for Chemical Technology and Polymer Chemistry, Institute of Catalysis Research and Technology, Karlsruher Institut für Technologie (KIT), Kaiserstrasse 12, Karlsruhe, Germany, ou_persistent22              
4Ernst Ruska Center for Microscopy and Spectroscopy with Electrons, Forschungzentrum Jülich GmbH, Jülich, Germany, ou_persistent22              

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Free keywords: Electrocatalysis; Fuel cells; Nanoparticles; Stability
 Abstract: The efficiency of polymer electrolyte membrane fuel cells is strongly depending on the electrocatalyst performance, that is, its activity and stability. We have designed a catalyst material that combines both, the high activity for the decisive cathodic oxygen reduction reaction associated with nanoscale Pt alloys, and the excellent durability of an advanced nanostructured support. Owing to the high specific activity and large active surface area, the catalyst shows extraordinary mass activity values of 1.0 Amg Pt-1. Moreover, the material retains its initial active surface area and intrinsic activity during an extended accelerated aging test within the typical operation range. This excellent performance is achieved by confined-space alloying of the nanoparticles in a controlled manner in the pores of the support.

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Language(s): eng - English
 Dates: 2014-01-292014-12-15
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1002/anie.201406812
 Degree: -

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Title: Angewandte Chemie International Edition
  Abbreviation : Angew. Chem. Int. Ed.
Source Genre: Journal
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Publ. Info: Weinheim : Wiley-VCH Verlag GmbH & Co. KGaA
Pages: - Volume / Issue: 53 (51) Sequence Number: - Start / End Page: 14250 - 14254 Identifier: ISSN: 1521-3773
CoNE: /journals/resource/0570-0833