SULFATE ADSORPTION ON WELL-DEFINED PT(100) ELECTRODES

被引：50

作者：

NART, FC ^{[1
]}

IWASITA, T ^{[1
]}

WEBER, M ^{[1
]}

机构：

[1] UNIV BONN,INST PHYS CHEM,D-53115 BONN,GERMANY

来源：

ELECTROCHIMICA ACTA | 1994年 / 39卷 / 13期

关键词：

ADSORBATES; ANION ADSORPTION; FTIR; PT SINGLE CRYSTAL;

D O I：

10.1016/0013-4686(94)85094-1

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The metal-solution interface of a single-crystal Pt(100) electrode in the presence of specifically adsorbed sulfate ions is investigated by means of in situ FTIR spectroscopy. Sulfate adsorption starts at about 0.2 V vs. Pd/H-2 and goes through a maximum at ca. 0.5 V. Sulfate ions are adsorbed through two oxygen atoms presenting a C2v symmetry. The two strong bands observed at around 1100 and 1200 cm-1 are assigned to the symmetric S-O stretches of the resulting SO2 groups (coordinated and non-coordinated (respectively).

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页码：2093 / 2096

页数：4

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