Effect of the Surface Structure of Pt(100) and Pt(110) on the Oxidation of Carbon Monoxide in Alkaline Solution: an FTIR and Electrochemical Study

被引：18

作者：

Rodriguez, Paramaconi ^{[1
]}

Garcia, Gonzalo ^{[1
,2
]}

Herrero, Enrique ^{[3
]}

Feliu, Juan M. ^{[3
]}

Koper, Marc T. M. ^{[1
]}

机构：

[1] Leiden Univ, Leiden Inst Chem, NL-2300 RA Leiden, Netherlands

[2] Univ La Laguna, Inst Univ Mat & Nanotecnol, Dept Quim Fis, San Cristobal la Laguna 38071, Tenerife, Spain

[3] Univ Alicante, Inst Electroquim, E-03080 Alicante, Spain

来源：

ELECTROCATALYSIS | 2011年 / 2卷 / 03期

关键词：

Pt(hkl); FTIR; CO oxidation; Alkaline solution; Surface structure; SINGLE-CRYSTAL ELECTRODES; REFLECTION-ABSORPTION SPECTROSCOPY; SCANNING-TUNNELING-MICROSCOPY; CO ADLAYER OXIDATION; IN-SITU STM; INFRARED-SPECTROSCOPY; METAL-SURFACES; PLATINUM; ADSORPTION; INTERFACES;

D O I：

10.1007/s12678-011-0059-9

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：

The electrochemical oxidation and infrared spectral features for carbon monoxide adsorbed on Pt(100) and Pt(110) in 0.1 M NaOH were studied as a function of the annealing/cooling treatment with the objective to establish the influence of the platinum surface site geometry and the role of surface order in the electro-oxidation of CO on these two surfaces. Two common cooling methods (Ar and H-2/Ar atmospheres) were employed for both surface electrodes. Additionally, CO cooling and I-2 vapour cooling methods were used for Pt(100) and Pt(110), respectively. Multiple CO vibration bands were observed on both electrode surfaces, their distribution and potential dependence strongly depending on the surface treatment.

引用

页码：242 / 253

页数：12

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