Adsorbate induced reconstruction of cobalt surfaces

被引:91
作者
Ciobica, I. M. [1 ]
van Santen, R. A. [2 ]
van Berge, P. J. [3 ]
de Loosdrecht, J. van [3 ]
机构
[1] Eindhoven Univ Technol, Sasol Technol Netherlands BV, NL-5600 MB Eindhoven, Netherlands
[2] Eindhoven Univ Technol, Schuit Inst Catalysis, NL-5600 MB Eindhoven, Netherlands
[3] Sasol Technol Pty Ltd, ZA-1947 Sasolburg, South Africa
关键词
chemisorption; surface reconstruction; FCC-cobalt surfaces;
D O I
10.1016/j.susc.2007.09.060
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
Coverage dependence adsorption of intermediates typical for syngas conversion is studied theoretically on FCC-cobalt surfaces. The FCC structure is relevant for cobalt particles active in this reaction. Emphasis on the analysis is on the thermodynamics of surface reconstruction as a function of surface adsorbate and surface coverage. An important result is the finding that only adsorbed carbon induced reconstruction of FCC-CO(1 1 1) to FCC-CO(1 0 0) as well as the clock reconstruction for the two surfaces. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:17 / 27
页数:11
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