Simulated dynamics of underpotential deposition of Cu with sulfate on Au(111)

被引:33
|
作者
Brown, G [1 ]
Rikvold, PA
Novotny, MA
Wieckowski, A
机构
[1] Florida State Univ, Ctr Mat Res & Technol, Tallahassee, FL 32306 USA
[2] Florida State Univ, Dept Phys, Tallahassee, FL 32306 USA
[3] Florida State Univ, Supercomp Computat Res Inst, Tallahassee, FL 32306 USA
[4] Univ Illinois, Dept Chem, Urbana, IL 61801 USA
[5] Univ Illinois, Frederick Seitz Mat Res Lab, Urbana, IL 61801 USA
关键词
D O I
10.1149/1.1391717
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
Numerical studies of lattice-gas models are well suited to describe multiadsorbate systems. One example is the underpotential deposition of Cu on Au(111) in the presence of sulfuric acid. Preliminary results from dynamic Monte Carlo simulations of the evolution of the adsorbed layer during potential-step experiments across phase transitions are presented for this particular system. The simulated current profiles reproduce a strong asymmetry seen in recent experiments. Examination of the microscopic structures that occur during the simulated evolution processes raises questions that need to be investigated by further experimental and theoretical study. (C) 1999 The Electrochemical Society. S0013-4651(98)07-031-1. All rights reserved.
引用
收藏
页码:1035 / 1040
页数:6
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