IN-SITU X-RAY REFLECTIVITY STUDY OF INCIPIENT OXIDATION OF PT(111) SURFACE IN ELECTROLYTE-SOLUTIONS

被引：120

作者：

YOU, H

ZURAWSKI, DJ

NAGY, Z

YONCO, RM

机构：

[1] Materials Science Division, Argonne National Laboratory, Argonne

[2] Chemical Technology Division, Argonne National Laboratory, Argonne

来源：

JOURNAL OF CHEMICAL PHYSICS | 1994年 / 100卷 / 06期

关键词：

D O I：

10.1063/1.466254

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：

Electrochemical oxidation causes the lifting of Pt atoms of the surface layer, substantiating a place-exchange mechanism. Furthermore, for a charge transfer of less than or similar to 1.7e(-)/Pt atom, the flat surface is recovered by reduction, while the surface is irreversibly roughened by more excessive oxidation. Roughening involves only the atoms in the top layer.

引用

收藏

页码：4699 / 4702

页数：4

相关论文

共 14 条

[1] SURFACE ORIENTATION DEPENDENCE OF OXIDE FILM GROWTH AT PLATINUM SINGLE-CRYSTALS [J].

CONWAY, BE ;

JERKIEWICZ, G .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1992, 339 (1-2) :123-146

[2] INSITU SCANNING TUNNELING MICROSCOPY OF PLATINUM (111) SURFACE WITH THE OBSERVATION OF MONATOMIC STEPS [J].

ITAYA, K ;

SUGAWARA, S ;

SASHIKATA, K ;

FURUYA, N .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1990, 8 (01) :515-519

[3]

Lyons M. E. G., 1986, MOD ASPECT ELECTROC, V18, P169

[4] CELL DESIGN FOR INSITU X-RAY-SCATTERING STUDY OF ELECTRODES IN TRANSMISSION GEOMETRY [J].

NAGY, Z ;

YOU, H ;

YONCO, RM ;

MELENDRES, CA ;

YUN, W ;

MARONI, VA .

ELECTROCHIMICA ACTA, 1991, 36 (01) :209-212

[5] INSITU X-RAY REFLECTIVITY AND DIFFRACTION STUDIES OF THE AU(001) RECONSTRUCTION IN AN ELECTROCHEMICAL-CELL [J].

OCKO, BM ;

WANG, J ;

DAVENPORT, A ;

ISAACS, H .

PHYSICAL REVIEW LETTERS, 1990, 65 (12) :1466-1469

[6] STRUCTURE AND PHASES OF THE AU(111) SURFACE - X-RAY-SCATTERING MEASUREMENTS [J].

SANDY, AR ;

MOCHRIE, SGJ ;

ZEHNER, DM ;

HUANG, KG ;

GIBBS, D .

PHYSICAL REVIEW B, 1991, 43 (06) :4667-4687

[7] RECONSTRUCTION OF THE PT(111) SURFACE [J].

SANDY, AR ;

MOCHRIE, SGJ ;

ZEHNER, DM ;

GRUBEL, G ;

HUANG, KG ;

GIBBS, D .

PHYSICAL REVIEW LETTERS, 1992, 68 (14) :2192-2195

[8] INSITU ELECTROCHEMICAL SCANNING TUNNELING MICROSCOPY OF SINGLE-CRYSTAL SURFACES OF PT(111), RH(111), AND PD(111) IN AQUEOUS SULFURIC-ACID-SOLUTION [J].

SASHIKATA, K ;

FURUYA, N ;

ITAYA, K .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, 1991, 9 (02) :457-464

[9] LEED SPOT PROFILE ANALYSIS OF THE STRUCTURE OF ELECTROCHEMICALLY TREATED PT(100) AND PT(111) SURFACES [J].

WAGNER, FT ;

ROSS, PN .

SURFACE SCIENCE, 1985, 160 (01) :305-330

[10] LONG-RANGE STRUCTURAL EFFECTS IN THE ANOMALOUS VOLTAMMETRY ON ULTRAHIGH-VACUUM PREPARED .3. [J].

WAGNER, FT ;

ROSS, PN .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1988, 250 (02) :301-320