Adsorption isotherm of CO on Pt(111) electrodes

被引：20

作者：

Cuesta, Angel ^{[1
]}

del Carmen Perez, Maria ^{[1
]}

Rincon, Alejandro ^{[1
]}

Gutierrez, Claudio ^{[1
]}

机构：

[1] CSIC, Inst Quim Fis Rocasolano, E-28006 Madrid, Spain

来源：

CHEMPHYSCHEM | 2006年 / 7卷 / 11期

关键词：

adsorption isotherm; carbon monoxide; chemisorption; electrochemistry; platinum;

D O I：

10.1002/cphc.200600364

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：

We have determined, for the first time, the equilibrium CO coverage of Pt(111) electrodes at room temperature in 0.1 m H2SO4 as a function of the CO partial pressure using CO-stripping cyclic voltammetry. Fourier-transform infrared (FT-IR) spectroscopy was used to confirm qualitatively the coverage values obtained.

引用

页码：2346 / 2351

页数：6

共 17 条

[1] PREPARATION OF MONO-CRYSTALLINE PT MICROELECTRODES AND ELECTROCHEMICAL STUDY OF THE PLANE SURFACES CUT IN THE DIRECTION OF THE (111) AND (110) PLANES [J].

CLAVILIER, J ;

FAURE, R ;

GUINET, G ;

DURAND, R .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1980, 107 (01) :205-209

[2]

Climent V, 1999, INTERFACIAL ELECTROCHEMISTRY, P463

[3] Measurement of the surface charge density of CO-saturated Pt(111) electrodes as a function of potential: the potential of zero charge of Pt(111) [J].

Cuesta, A .

SURFACE SCIENCE, 2004, 572 (01) :11-22

[4] Validity of double-layer charge-corrected voltammetry for assaying carbon monoxide coverages on ordered transition metals: comparisons with adlayer structures in electrochemical and ultrahigh vacuum environments [J].

Gomez, R ;

Feliu, JM ;

Aldaz, A ;

Weaver, MJ .

SURFACE SCIENCE, 1998, 410 (01) :48-61

[5] Mechanism and kinetics of the electrochemical CO adlayer oxidation on Pt(111) [J].

Lebedeva, NP ;

Koper, MTM ;

Feliu, JM ;

van Santen, RA .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2002, 524 :242-251

[6] High-coverage structures of carbon monoxide adsorbed on Pt(111) studied by high-pressure scanning tunneling microscopy [J].

Longwitz, SR ;

Schnadt, J ;

Vestergaard, EK ;

Vang, RT ;

Lægsgaard, E ;

Stensgaard, I ;

Brune, H ;

Besenbacher, F .

JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (38) :14497-14502

[7] Potential dependence of the saturation CO coverage of Pt electrodes:: The origin of the pre-peak in CO-stripping voltammograms.: Part 1:: Pt(111) [J].

López-Cudero, A ;

Cuesta, A ;

Gutiérrez, C .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2005, 579 (01) :1-12

[8] The effect of chloride on the electrooxidation of adsorbed CO on polycrystalline platinum electrodes [J].

López-Cudero, A ;

Cuesta, A ;

Gutiérrez, C .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2003, 548 (SUPPL.) :109-119

[9] The adsorption and oxidation of carbon monoxide at the Pt(111)/electrolyte interface: atomic structure and surface relaxation [J].

Lucas, CA ;

Markovic, NM ;

Ross, PN .

SURFACE SCIENCE, 1999, 425 (01) :L381-L386

[10] Electrooxidation of CO and H2/CO mixtures on Pt(111) in acid solutions [J].

Markovic, NM ;

Grgur, BN ;

Lucas, CA ;

Ross, PN .

JOURNAL OF PHYSICAL CHEMISTRY B, 1999, 103 (03) :487-495

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