Preferential oxidation of carbon monoxide adsorbed on Pd submonolayer films deposited on Pt(100)

被引：22

作者：

Arenz, M ^{[1
]}

Stamenkovic, V ^{[1
]}

Ross, PN ^{[1
]}

Markovic, NM ^{[1
]}

机构：

[1] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Sci Mat, Berkeley, CA 94720 USA

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2003年 / 5卷 / 09期

关键词：

carbon monoxide oxidation; platinum; palladium; bimetallic surfaces; pseudomorphic metal films;

D O I：

10.1016/j.elecom.2003.07.001

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The electrochemical behavior of palladium modified Pt(100) in perchloric acid solution has been Studied by means of cyclic voltammetry, CO bulk oxidation and in-situ Fourier transform infrared (FTIR) spectroscopy. FTIR spectra on Pd submonolayers reveal that at low potentials (about 0.4 V) Pd-bounded CO is oxidized preferentially, whereas at the same time the Pt-CO oxidation rate is rather slow. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：809 / 813

页数：5

共 28 条

[1] Anion adsorption on Pd-Pt(111) electrodes in sulphuric acid solution [J].

Alvarez, B ;

Climent, V ;

Rodes, A ;

Feliu, JM .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2001, 497 (1-2) :125-138

[2] The effect of specific chloride adsorption on the electrochemical behavior of ultrathin Pd films deposited on Pt(111) in acid solution [J].

Arenz, M ;

Stamenkovic, V ;

Schmidt, TJ ;

Wandelt, K ;

Ross, PN ;

Markovic, NM .

SURFACE SCIENCE, 2003, 523 (1-2) :199-209

[3] CO adsorption and kinetics on well-characterized Pd films on Pt(111) in alkaline solutions [J].

Arenz, M ;

Stamenkovic, V ;

Schmidt, TJ ;

Wandelt, K ;

Ross, PN ;

Markovic, NM .

SURFACE SCIENCE, 2002, 506 (03) :287-296

[4]

ARENZ M, 2003, UNPUB

[5] PALLADIUM ADSORPTION ON PT(111) - A COMBINED ELECTROCHEMICAL AND ULTRA-HIGH-VACUUM STUDY [J].

ATTARD, GA ;

PRICE, R ;

ALAKL, A .

ELECTROCHIMICA ACTA, 1994, 39 (11-12) :1525-1530

[6] THE ELECTROCHEMICAL-BEHAVIOR OF IRREVERSIBLY ADSORBED PALLADIUM ON PT(111) IN ACID-MEDIA [J].

ATTARD, GA ;

BANNISTER, A .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1991, 300 (1-2) :467-485

[7] Formic acid oxidation on ultrathin Pd films on Au(hkl) and Pt(hkl) electrodes [J].

Baldauf, M ;

Kolb, DM .

JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (27) :11375-11381

[8] Surface X-ray scattering studies of the growth of Pd thin films on the Pt(001) electrode surface and the effects of the adsorption of CO [J].

Ball, MJ ;

Lucas, CA ;

Markovic, NM ;

Stamenkovic, V ;

Ross, PN .

SURFACE SCIENCE, 2003, 540 (2-3) :295-302

[9] From sub-monolayer to multilayer - an in situ X-ray diffraction study of the growth of Pd films on Pt(111) [J].

Ball, MJ ;

Lucas, CA ;

Markovic, NM ;

Stamenkovic, V ;

Ross, PN .

SURFACE SCIENCE, 2002, 518 (03) :201-209

[10] INSITU INFRARED-SPECTROSCOPY OF CO ADSORBED AT ORDERED PT(100)-AQUEOUS INTERFACES - DOUBLE-LAYER EFFECTS UPON THE ADSORBATE BINDING GEOMETRY [J].

CHANG, SC ;

WEAVER, MJ .

JOURNAL OF PHYSICAL CHEMISTRY, 1990, 94 (12) :5095-5102

← 1 2 3 →