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  Formation of a High Coverage (3×3) NO Phase on Pd(111) at Elevated Pressures: Interplay Between Kinetic and Thermodynamic Accessibility

Ozensoy, E., Hess, C., Loffreda, D., Sautet, P., & Goodman, D. W. (2005). Formation of a High Coverage (3×3) NO Phase on Pd(111) at Elevated Pressures: Interplay Between Kinetic and Thermodynamic Accessibility. Journal of Physical Chemistry B, 109, 5414-5417.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0011-094B-6 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0011-094B-6
Genre: Journal Article

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Ozensoy_NO_Pdfinal.pdf (Any fulltext), 352KB
 
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 Creators:
Ozensoy, Emrah, Author
Hess, Christian1, Author              
Loffreda, David, Author
Sautet, Philippe, Author
Goodman, D. Wayne, Author
Affiliations:
1Inorganic Chemistry, Fritz Haber Institute, Max Planck Society, ou_24023              

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Free keywords: Pd, NO, high pressure, in situ spectroscopy
 Abstract: Using in situ polarization modulation infrared reflection absorption spectroscopy and density functional theory calculations, a new high-coverage monomeric NO adsorption state on Pd(111) was observed, and proposed to have a (3x3)-7NO structure. Formation of this high coverage NO phase was found to take place only at elevated pressure and temperature conditions showing that some of the accessible thermodynamic equilibrium states at elevated temperatures and pressures are kinetically hindered at lower temperatures and pressures. Our results emphasize the danger of extrapolating results from traditional surface science experiments performed under ultra-high vacuum to elevated temperature and pressure conditions encountered in heterogeneous catalysis.

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Language(s): eng - English
 Dates: 2005-03-08
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Method: Peer
 Identifiers: eDoc: 217766
 Degree: -

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Title: Journal of Physical Chemistry B
  Alternative Title : J. Phys. Chem. B
Source Genre: Journal
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Pages: - Volume / Issue: 109 Sequence Number: - Start / End Page: 5414 - 5417 Identifier: -