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Favaro M, Agnoli S, Perini L, et al. Palladium nanoparticles supported on nitrogen-doped HOPG: a surface science and electrochemical study. Phys Chem Chem Phys. 2013;15(8):2923-31doi: 10.1039/c2cp44154c.
Favaro, M., Agnoli, S., Perini, L., Durante, C., Gennaro, A., & Granozzi, G. (2013). Palladium nanoparticles supported on nitrogen-doped HOPG: a surface science and electrochemical study. Physical chemistry chemical physics : PCCP, 15(8), 2923-31. https://doi.org/10.1039/c2cp44154c
Favaro, Marco, et al. "Palladium nanoparticles supported on nitrogen-doped HOPG: a surface science and electrochemical study." Physical chemistry chemical physics : PCCP vol. 15,8 (2013): 2923-31. doi: https://doi.org/10.1039/c2cp44154c
Favaro M, Agnoli S, Perini L, Durante C, Gennaro A, Granozzi G. Palladium nanoparticles supported on nitrogen-doped HOPG: a surface science and electrochemical study. Phys Chem Chem Phys. 2013 Feb 28;15(8):2923-31. doi: 10.1039/c2cp44154c. Epub 2013 Jan 22. PMID: 23340524.
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Phys Chem Chem Phys. 2013 Feb 28;15(8):2923-31. doi: 10.1039/c2cp44154c. Epub 2013 Jan 22.

Palladium nanoparticles supported on nitrogen-doped HOPG: a surface science and electrochemical study.

Physical chemistry chemical physics : PCCP

Marco Favaro, Stefano Agnoli, Lorenzo Perini, Christian Durante, Armando Gennaro, Gaetano Granozzi

Affiliations

  1. Dipartimento di Scienze Chimiche ed Unità di Ricerca INSTM, Università degli Studi di Padova, Via Marzolo 1, 35131 Padova, Italy.

PMID: 23340524 DOI: 10.1039/c2cp44154c

Abstract

We have investigated by photoemission spectroscopy and scanning tunnelling microscopy what are the chemical and structural changes induced by nitrogen ion implantation (500 eV) on highly oriented pyrolytic graphite and how the defects induced by this process modify the growth and thermal stability of palladium nanoparticles, deposited in situ by physical vapour deposition. Since nitrogen derived defects are mostly buried below the surface, they are not accessible for a chemical interaction with metal nanoparticles; however, the amorphization induced by the ion beam in the outermost layers of the substrate beneficially affects the metal morphology, limiting the size of the nanoparticles and improving their thermal stability. The supported nanoparticles have been tested towards the oxygen reduction reaction indicating that the electrochemical activity does not depend significantly on the ion implantation, but mostly on the amount of palladium.

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