Kinetic features of SERS quenching by underpotential deposition (UPD) of Cd and Tl on Ag electrodes.
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概要
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Surface-enhanced Raman scattering (SERS) in the Ag/pyridine system is quenched through a biphasic kinetics, after completion of submonolayer underpotential deposition (UPD) of Cd. This result is elucidated by invoking a quasi-reversible transformation of the initial SERS-active site into another by an attack, <I>via</I> surface diffusion, of deposited Cd, followed by irreversible unimolecular decomposition of the new site. From the SERS quenching data a value of about 10<SUP>−17</SUP> cm<SUP>2</SUP> s<SUP>−1</SUP> was derived as the surface diffusion coefficient of Cd on the Ag surface. A similar but somewhat different quenching behavior is observed by UPD of Tl.
- 公益社団法人 日本化学会の論文
著者
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Honda Kenichi
Division Of Histology And Cell Biology Department Of Anatomy Jichi Medical School
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Watanabe Tadashi
Institute Of Industrial Science The University Of Tokyo
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Honda Kenichi
Division of Molecular Engineering, Faculty of Engineering, Kyoto University
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Kawanami Osamu
Institute of Industrial Science, The University of Tokyo
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