ELLIPSOMETRY AND DEMS STUDY OF THE ELECTROOXIDATION OF METHANOL AT PT AND RU-PROMOTED AND SN-PROMOTED PT

被引：91

作者：

FRELINK, T

VISSCHER, W

COX, AP

VANVEEN, JAR

机构：

[1] Eindhoven University of Technology, Laboratory for Inorganic Chemistry and Catalysis, 5600 MB Eindhoven

来源：

ELECTROCHIMICA ACTA | 1995年 / 40卷 / 10期

关键词：

ELLIPSOMETRY; DEMS; METHANOL; PT; RU; SN PROMOTION;

D O I：

10.1016/0013-4686(95)00034-C

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The oxidation of submonolayers of Ru and Sn on Pt in sulfuric acid was monitored with ellipsometry. In the presence of methanol the oxides on Ru and Sn disappear but the Pt-oxide is not affected by methanol. This signifies that Ru and Sn are present in their zero valent state during the methanol oxidation. DEMS measurements showed that both metals enhance methanol oxidation. The promoting role of these metals is explained with the bifunctional mechanism.

引用

页码：1537 / 1543

页数：7

共 32 条

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[2]

Bagotzky V.S., 1966, ELECTROCHIM ACTA, V11, P1439

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