Molecular Surface Chemistry by Metal Single Crystals and Nanoparticles from Vacuum to High Pressure.

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Model systems for studying molecular surface chemistry have evolved from single crystal surfaces at low pressure to colloidal nanoparticles at high pressure. Low pressure surface structure studies of platinum single crystals using molecular beam surface scattering and low energy electron diffraction techniques probe the unique activity of defects, steps and kinks at the surface for dissociation reactions (H-H, C-H, C-C, O{double_bond}O bonds). High-pressure investigations of platinum single crystals using sum frequency generation vibrational spectroscopy have revealed the presence and the nature of reaction intermediates. High pressure scanning tunneling microscopy of platinum single crystal surfaces showed adsorbate mobility during a catalytic ... continued below

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Somorjai, Gabor A. & Park, Jeong Y. April 5, 2008.

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Model systems for studying molecular surface chemistry have evolved from single crystal surfaces at low pressure to colloidal nanoparticles at high pressure. Low pressure surface structure studies of platinum single crystals using molecular beam surface scattering and low energy electron diffraction techniques probe the unique activity of defects, steps and kinks at the surface for dissociation reactions (H-H, C-H, C-C, O{double_bond}O bonds). High-pressure investigations of platinum single crystals using sum frequency generation vibrational spectroscopy have revealed the presence and the nature of reaction intermediates. High pressure scanning tunneling microscopy of platinum single crystal surfaces showed adsorbate mobility during a catalytic reaction. Nanoparticle systems are used to determine the role of metal-oxide interfaces, site blocking and the role of surface structures in reactive surface chemistry. The size, shape and composition of nanoparticles play important roles in determining reaction activity and selectivity.

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  • Journal Name: Chemical Society Reviews

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  • Report No.: LBNL-1806E
  • Grant Number: DE-AC02-05CH11231
  • DOI: 10.1039/b719148k | External Link
  • Office of Scientific & Technical Information Report Number: 953693
  • Archival Resource Key: ark:/67531/metadc927107

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  • April 5, 2008

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  • Nov. 13, 2016, 7:26 p.m.

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  • Nov. 18, 2016, 3:52 p.m.

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Somorjai, Gabor A. & Park, Jeong Y. Molecular Surface Chemistry by Metal Single Crystals and Nanoparticles from Vacuum to High Pressure., article, April 5, 2008; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc927107/: accessed December 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.