Tuning reaction rates by lateral strain in a palladium monolayer

被引:485
作者
Kibler, LA [1 ]
El-Aziz, AM
Hoyer, R
Kolb, DM
机构
[1] Univ Ulm, Abt Elektrochem, D-89069 Ulm, Germany
[2] Natl Res Ctr, Dept Chem Phys, Dokki, Cairo, Egypt
关键词
adsorption; electrochemistry; heterogeneous catalysis; monolayers; oxidation; surface chemistry;
D O I
10.1002/anie.200462127
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Stretching exercises: The electrochemical behavior of pseudomorphic palladium monolayers (PdML) on various single-crystal electrodes is investigated (see picture) to demonstrate the influence of lateral compression and dilation on surface activity. The adsorption behavior and the catalytic activity for formic acid electrooxidation varies dramatically depending on whether the palladium monolayer is compressed or dilated by the single-crystal electrode. (Graph Presented) © 2005 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:2080 / 2084
页数:5
相关论文
共 42 条
[1]   STRUCTURAL EFFECTS IN ELECTROCATALYSIS [J].
ADZIC, RR ;
TRIPKOVIC, AV ;
OGRADY, WE .
NATURE, 1982, 296 (5853) :137-138
[2]   Potential of zero total charge of palladium modified Pt(111) electrodes in perchloric acid solutions [J].
Alvarez, B ;
Climent, V ;
Rodes, A ;
Feliu, JM .
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2001, 3 (16) :3269-3276
[3]   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
[4]   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
[5]   A HYDROGEN ADSORPTION AND ABSORPTION STUDY WITH ULTRATHIN PD OVERLAYERS ON AU(111) AND AU(100) [J].
BALDAUF, M ;
KOLB, DM .
ELECTROCHIMICA ACTA, 1993, 38 (15) :2145-2153
[6]   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
[7]   Spontaneous deposition of Pd on a Ru(0001) surface [J].
Brankovic, SR ;
McBreen, J ;
Adzic, RR .
SURFACE SCIENCE, 2001, 479 (1-3) :L363-L368
[8]   A method to prepare single crystal electrodes of reactive metals:: application to Pd(hkl) [J].
Cuesta, A ;
Kibler, LA ;
Kolb, DM .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1999, 466 (02) :165-168
[9]   Influence of steps on the electrochemical oxidation of CO adlayers on Pd(111) and on Pd films electrodeposited onto Au(111) [J].
El-Aziz, AM ;
Kibler, LA .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2002, 534 (02) :107-114
[10]   The potentials of zero charge of Pd(111) and thin Pd overlayers on Au(111) [J].
El-Aziz, AM ;
Kibler, LA ;
Kolb, DM .
ELECTROCHEMISTRY COMMUNICATIONS, 2002, 4 (07) :535-539