Density-functional calculations of icosahedral M13 (M = Pt and Au) clusters on graphene sheets and flakes

被引:143
作者
Okamoto, Y
机构
[1] CREST, Japan Sci & Technol Agcy, Kawaguchi, Saitama, Japan
[2] NEC Corp Ltd, Fundamental & Environm Res Labs, Tsukuba, Ibaraki 3058501, Japan
关键词
D O I
10.1016/j.cplett.2006.01.007
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
Density-functional calculations were done to examine the interface between graphene and a Pt-13 or Au-13 cluster. Introducing a carbon vacancy into a graphene sheet enhanced the interaction between graphene and the metal clusters. Five- or seven-member rings introduced into the graphene also increased the stability of the interface. The CO and H chemisorption energies on the metal clusters on graphene were calculated to clarify support-dependent reactivity. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:382 / 386
页数:5
相关论文
共 13 条
[1]  
Hammer B, 2000, ADV CATAL, V45, P71
[2]  
Lipkowski J., 1998, ELECTROCATALYSIS
[3]   Catalytic CO oxidation by a gold nanoparticle: A density functional study [J].
Lopez, N ;
Norskov, JK .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (38) :11262-11263
[4]   NON-LINEAR IONIC PSEUDOPOTENTIALS IN SPIN-DENSITY-FUNCTIONAL CALCULATIONS [J].
LOUIE, SG ;
FROYEN, S ;
COHEN, ML .
PHYSICAL REVIEW B, 1982, 26 (04) :1738-1742
[5]   Theoretical study of hydrogenation process of formate on clean and Zn deposited Cu(111) surfaces [J].
Morikawa, Y ;
Iwata, K ;
Terakura, K .
APPLIED SURFACE SCIENCE, 2001, 169 :11-15
[6]   Density-functional calculations of graphene interfaces with Pt(111) and Pt(111)/RuML surfaces [J].
Okamoto, Y .
CHEMICAL PHYSICS LETTERS, 2005, 407 (4-6) :354-357
[7]   Density-functional calculations of atomic and molecular adsorptions on 55-atom metal clusters: Comparison with (111) surfaces [J].
Okamoto, Y .
CHEMICAL PHYSICS LETTERS, 2005, 405 (1-3) :79-83
[8]  
Perdew JP, 1997, PHYS REV LETT, V78, P1396, DOI 10.1103/PhysRevLett.77.3865
[9]   Quantum-chemical calculations of CO and OH interacting with bimetallic surfaces [J].
Shubina, TE ;
Koper, MTM .
ELECTROCHIMICA ACTA, 2002, 47 (22-23) :3621-3628
[10]  
TRASATTI S, 1972, J ELECTROANAL CHEM, V39, P161