SURFACE-SCIENCE SIMULATION STUDY OF THE ELECTROCHEMICAL CHARGE-TRANSFER REACTION (H)AD+(H2O)AD-](H3O+)AD+E-METAL ON PT(111) AND CU(110)

被引：35

作者：

LACKEY, D ^{[1
]}

SCHOTT, J ^{[1
]}

SASS, JK ^{[1
]}

WOO, SI ^{[1
]}

WAGNER, FT ^{[1
]}

机构：

[1] GM CORP,RES LABS,DEPT PHYS CHEM,WARREN,MI 48090

来源：

CHEMICAL PHYSICS LETTERS | 1991年 / 184卷 / 04期

关键词：

D O I：

10.1016/0009-2614(91)85123-E

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：

By coadsorbing hydrogen and water on Pt(111) and Cu(110), and isotopically substituting (H)ad by (D)ad, we have unambiguously identified the occurrence of the electrochemical reaction (H)ad + (H2O)ad --> (H3O+)ad +e(metal)- in UHV. On Pt(111), a substantial fraction of the hydrogen is oxidized to (H3O+)ad, whereas on Cu(110), this does not occur. On Pt(111), the proton in the initial (H3O+)ad complex is seen to exchange readily with excess water. Hydrated proton formation on Pt(111) was also observed at higher temperatures, where water only has a finite residence time on the suface.

引用

页码：277 / 281

页数：5

共 18 条

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