Effects of Li+, K+, and Ba2+ Cations on the ORR at Model and High Surface Area Pt and Au Surfaces in Alkaline Solutions

被引:159
作者
Strmcnik, D. [1 ]
van der Vliet, D. F. [1 ]
Chang, K-C. [1 ]
Komanicky, V. [2 ]
Kodama, K.
You, H. [1 ]
Stamenkovic, V. R. [1 ]
Markovic, N. M. [1 ]
机构
[1] Argonne Natl Lab, Argonne, IL 60439 USA
[2] Safarik Univ, Fac Sci, Kosice, Slovakia
来源
JOURNAL OF PHYSICAL CHEMISTRY LETTERS | 2011年 / 2卷 / 21期
关键词
SINGLE-CRYSTAL ELECTRODES; NONCOVALENT INTERACTIONS; OXYGEN REDUCTION; PLATINUM; ELECTROCATALYSIS; ELECTROCHEMISTRY; OXIDATION; INTERFACE; CYANIDE; MEDIA;
D O I
10.1021/jz201215u
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
This Letter reveals new findings on the influence of noncovalent interactions on the electrochemical interface. Using surface X-ray scattering, we demonstrate that the barium cations are located at 3.4 angstrom away from the surface, suggesting that they are partially hydrated, though not adsorbed at the surface. The effect of the cation on the oxygen reduction reaction (ORR) ranges from significant (Pt) to little (Au), depending on the nature of the metal and cation. Finally, we show that these results, as obtained on well-defined single-crystal surfaces, correlate well with observations on high surface area nanoparticle catalysts.
引用
收藏
页码:2733 / 2736
页数:4
相关论文
共 19 条
[1]   REFLECTANCE STUDY OF CATION ADSORPTION ON OXIDE LAYERS OF GOLD AND PLATINUM-ELECTRODES [J].
ADZIC, RR ;
MARKOVIC, NM .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1979, 102 (02) :263-270
[2]   STRUCTURAL EFFECTS IN ELECTROCATALYSIS - OXYGEN REDUCTION ON THE AU(100) SINGLE-CRYSTAL ELECTRODE [J].
ADZIC, RR ;
MARKOVIC, NM ;
VESOVIC, VB .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1984, 165 (1-2) :105-120
[3]   X-RAY-DIFFRACTION STUDIES OF AQUEOUS ALKALINE-EARTH CHLORIDE SOLUTIONS [J].
ALBRIGHT, JN .
JOURNAL OF CHEMICAL PHYSICS, 1972, 56 (08) :3783-&
[4]   Surface resonance X-ray scattering observation of core-electron binding-energy shifts of Pt(111)-surface atoms during electrochemical oxidation [J].
Chu, YS ;
You, H ;
Tanzer, JA ;
Lister, TE ;
Nagy, Z .
PHYSICAL REVIEW LETTERS, 1999, 83 (03) :552-555
[5]   Inclusion of local structure effects in theoretical x-ray resonant scattering amplitudes using ab initio x-ray-absorption spectra calculations [J].
Cross, JO ;
Newville, M ;
Rehr, JJ ;
Sorensen, LB ;
Bouldin, CE ;
Watson, G ;
Gouder, T ;
Lander, GH ;
Bell, MI .
PHYSICAL REVIEW B, 1998, 58 (17) :11215-11225
[6]  
Delahay, 1965, DOUBLE LAYER ELECTRO
[7]   Quantitative Study of Non-Covalent Interactions at the Electrode-Electrolyte Interface Using Cyanide-Modified Pt(111) Electrodes [J].
Escudero-Escribano, Maria ;
Zoloff Michoff, Martin E. ;
Leiva, Ezequiel P. M. ;
Markovic, Nenad M. ;
Gutierrez, Claudio ;
Cuesta, Angel .
CHEMPHYSCHEM, 2011, 12 (12) :2230-2234
[8]   Individual activity coefficients of ions in aqueous solutions [J].
Kielland, J .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1937, 59 :1675-1678
[9]   STRUCTURAL EFFECTS IN ELECTROCATALYSIS - OXYGEN REDUCTION ON THE GOLD SINGLE-CRYSTAL ELECTRODES WITH (110) AND (111) ORIENTATIONS [J].
MARKOVIC, NM ;
ADZIC, RR ;
VESOVIC, VB .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1984, 165 (1-2) :121-133
[10]   Hydrogen electrochemistry on platinum low-index single-crystal surfaces in alkaline solution [J].
Markovic, NM ;
Sarraf, ST ;
Gasteiger, HA ;
Ross, PN .
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1996, 92 (20) :3719-3725