Solvated protons in density functional theory-A few examples

被引:27
|
作者
Quaino, P. [1 ]
Luque, N. B. [2 ]
Soldano, G.
Nazmutdinov, R. [4 ]
Santos, E. [2 ,3 ]
Roman, T. [2 ]
Lundin, A. [5 ]
Gross, A. [2 ]
Schmickler, W. [2 ]
机构
[1] Univ Nacl Litoral Santa Fe, PRELINE, Santa Fe, Argentina
[2] Univ Ulm, Inst Theoret Chem, D-89069 Ulm, Germany
[3] Univ Nacl Cordoba, Fac Matemat Astron & Fis, IFEG CONICET, RA-5000 Cordoba, Argentina
[4] Kazan Natl Res Technol Univ, Kazan 420015, Russia
[5] Chalmers Univ Technol, Dept Chem & Biol Engn, SE-41296 Gothenburg, Sweden
关键词
DFT; Proton; Water bilayer; Zundel ion; Eigen ion; ADSORPTION; WATER; ELECTROCATALYSIS; PSEUDOPOTENTIALS;
D O I
10.1016/j.electacta.2013.04.084
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
We have investigated several ways of introducing a solvated proton into a DFT calculation in order to mimic an electrochemical interface: an extra hydrogen introduced into a metal bilayer, a Zundel and an Eigen ion. In all these cases the charge on the supposed proton is substantially less than a unit positive charge. In contrast, when the electrode is represented as a cluster, the charge on Zundel ion is indeed plus one. However, the distribution of the compensating charge on the cluster is quite different from that on a plane metal surface. (c) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码:248 / 253
页数:6
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