Effect of the crystallographic orientation of gold single-crystal electrodes on the occurrence of 2D phase transitions in adsorbed organic monolayers

被引:24
作者
Bare, S
Van Krieken, M
Buess-Herman, C
Hamelin, A
机构
[1] Free Univ Brussels, Fac Sci, Chim Analyt Serv, B-1050 Brussels, Belgium
[2] CNRS, Electrochim Interfaciale Lab, Meudon, France
基金
美国国家科学基金会;
关键词
2D ordering; phase transition; gold single crystal; uridine; uracil;
D O I
10.1016/S0022-0728(97)00573-1
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
The influence of the surface structure of a gold electrode on the occurrence of 2D phase transitions in adlayers of uracil and uridine has been studied by cyclic voltammetry. Au(111) surfaces with different step densities have been prepared by cutting the single crystals between 2 and 15.8 degrees of their (111) axis. Results confirm that flat surfaces are a prerequisite for the formation of a 2D condensed physisorbed film. (C) 1998 Elsevier Science S.A. All rights reserved.
引用
收藏
页码:7 / 11
页数:5
相关论文
共 19 条
[11]   STRUCTURAL TRANSITIONS IN URACIL ADLAYERS ON GOLD SINGLE-CRYSTAL ELECTRODES [J].
HOLZLE, MH ;
WANDLOWSKI, T ;
KOLB, DM .
SURFACE SCIENCE, 1995, 335 (1-3) :281-290
[12]  
HOLZLE MH, 1995, ELECTROCHIM ACTA, V40, P1247
[13]   LOW-ENERGY ELECTRON-DIFFRACTION STUDIES OF CHEMISORBED GASES ON STEPPED SURFACES OF PLATINUM [J].
LANG, B ;
JOYNER, RW ;
SOMORJAI, GA .
SURFACE SCIENCE, 1972, 30 (02) :454-&
[14]   Adsorption of pyridine on the (111), (001) and (01(1)over-bar) faces of bismuth [J].
Lust, E ;
Janes, A ;
Miidla, P ;
Lust, K .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1997, 425 (1-2) :25-37
[15]  
ROELFS B, 1997, J PHYS CHEM B, V101, P757
[16]   ON THE OCCURRENCE OF 2-DIMENSIONAL PHASE-TRANSITIONS OF URIDINE AT THE AQUEOUS-SOLUTION GOLD SINGLE-CRYSTAL INTERFACE [J].
SCHARFE, M ;
HAMELIN, A ;
BUESSHERMAN, C .
ELECTROCHIMICA ACTA, 1995, 40 (01) :61-67
[17]  
STOLBERG L, 1992, ADSORPTION ORGANIC M, pCH4
[18]  
VANKRIEKEN M, IN PRESS ELECTROCHIM
[19]   Structural and thermodynamic aspects of phase transitions in uracil adlayers. A chronocoulometric study [J].
Wandlowski, T ;
Holzle, MH .
LANGMUIR, 1996, 12 (26) :6604-6615