Raman Scattering Study of the Adsorption State of CO on Silver

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概要

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• Three intense Raman bands were observed at 158, 180 and 2142 cm ' after the ex-posure of the silver film to about 0.5 L of carbon n?onoxide (C)0) at 80 K. We foundthat oxygen coadsorbed with CO induces an upward peak shift of the C-0 stretchingRaman band to a frequency above that of a gas phase CO. The re-enforcement of thebond between CO and the substrate by the presence of the cc>adsorbed oxygen wasconfirmed by the observation of the upward peak shifts of the low frequency bands.Discussion on the change in the adsorption state of CO due to the coadsorption isgiven in relation to an electronegativity of the coadsorbate. The proposed scheme con-sistently explains not only the peak shift of the C-0 stretching band but also thechange in the bond strength between CO and the substrate.

• 社団法人日本物理学会の論文
• 1988-06-15

著者

• NANBA Takao

  Department of Physics and Graduate School of Science and Technology, Kobe University

• Yamamoto Itsuro

  Department of Physics, Graduate School of Science, Kyoto University

• Yamamoto Itsuro

  Department Of Physics Faculty Of Science Tohoku University

• Nanba Takao

  Department of Physics,Faculty of Science,Tohoku University

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