Carbon contamination at silver surfaces: Surface preparation procedures evaluated by Raman spectroscopy and X-ray photoelectron spectroscopy

被引：92

作者：

Taylor, CE ^{[1
]}

Garvey, SD ^{[1
]}

Pemberton, JE ^{[1
]}

机构：

[1] UNIV ARIZONA,DEPT CHEM,TUCSON,AZ 85721

来源：

ANALYTICAL CHEMISTRY | 1996年 / 68卷 / 14期

关键词：

D O I：

10.1021/ac950753h

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The quantity and chemical nature of carbonaceous impurities remaining on polycrystalline Ag surfaces after preparation depend on the protocol used for cleaning. The effectiveness of several preparation protocols was investigated in this study: mechanical polishing with successively finer grades of alumina, Ar+ sputtering, chemical polishing, and chemical polishing followed by T1 underpotential deposition. The impurities detected on polycrystalline Ag surfaces subjected to these preparation procedures are carbon, oxygen, and aluminum, and these are qualitatively and quantitatively identified with X-ray photoelectron spectroscopy. With Raman spectroscopy, these carbonaceous impurities are qualitatively identified as graphite, hydrocarbon, and cyanide species, the last of these being present only on the chemically polished surfaces.

引用

页码：2401 / 2408

页数：8

共 39 条

[1]

ADZIC R, 1984, J ELECTROCHEM SOC, V131, P1731

[2] SURFACE-ENHANCED RAMAN-SPECTROSCOPY OF CARBON ELECTRODE SURFACES FOLLOWING SILVER ELECTRODEPOSITION [J].