Investigation of cyanide ions adsorbed on platinum and palladium coated silver island films by surface-enhanced Raman spectroscopy

被引：38

作者：

Hesse, E ^{[1
]}

Creighton, JA ^{[1
]}

机构：

[1] Univ Kent, Sch Phys Sci, Canterbury CT2 7NH, Kent, England

来源：

CHEMICAL PHYSICS LETTERS | 1999年 / 303卷 / 1-2期

关键词：

D O I：

10.1016/S0009-2614(99)00188-8

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Bimetallic films prepared by vacuum-depositing platinum onto silver island films have been evaluated for surface-enhanced Raman scattering (SERS), using CN- as the adsorbate. For platinum overlayers with mean thickness corresponding to 1-2 monolayers the spectrum is dominated by a band consistent with either CN- adsorbed at the platinum surface or with Pt(CN)(4)(2-). For thinner platinum overlayers, changes in the spectra due to migration of CN- from Ag(CN); to the surface platinum atoms were observed during the first few minutes of laser illumination. Similar palladium-on-silver films showed a prominent SERS band assigned to surface Pd(CN)(4)(2-). (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：101 / 106

页数：6

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