CO Adsorption on the AunS(n=1∼6) clusters: The First-Principles Study

被引:0
作者
Chi, Shui-Lian [1 ]
Chen, Ming [1 ]
Peng, Song-Lin [1 ]
机构
[1] S China Univ Technol, Dept Phys, Guangzhou 510640, Guangdong, Peoples R China
来源
MATERIAL AND MANUFACTURING TECHNOLOGY II, PTS 1 AND 2 | 2012年 / 341-342卷
关键词
density functional theory; AunS clusters; CO adsorption; charge transfer; COINAGE METAL-CLUSTERS; GAS SHIFT REACTION; GOLD; AU; CATALYSIS; OXIDATION; TEMPERATURE; MOLECULES; FTIR;
D O I
10.4028/www.scientific.net/AMR.341-342.42
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Density functional theory (DFT) calculations are performed to investigate CO bonded on the AunS (n=1 similar to 6) bimetallic clusters. It is found that the adsorption energies of CO on the AunS(n=1 similar to 6) clusters are greater than those on the pure Au clusters of corresponding sizes. This means that doped S atom can enhance CO adsorption on the Au clusters. Furthermore, through the Mulliken population analysis, we can see that charges transfer from the Au clusters to S atom, while charges donate to the Au clusters from the CO in CO/AunS sytem.
引用
收藏
页码:42 / 47
页数:6
相关论文
共 25 条
[1]   CO oxidation catalyzed by single-walled helical gold nanotube [J].
An, Wei ;
Pei, Yong ;
Zeng, X. C. .
NANO LETTERS, 2008, 8 (01) :195-202
[2]   Low-temperature water-gas shift reaction over Au/CeO2 catalysts [J].
Andreeva, D ;
Idakiev, V ;
Tabakova, T ;
Ilieva, L ;
Falaras, P ;
Bourlinos, A ;
Travlos, A .
CATALYSIS TODAY, 2002, 72 (1-2) :51-57
[3]  
[Anonymous], 1995, HDB CHEM PHYS
[4]   FTIR study of the low-temperature water-gas shift reaction on Au/Fe2O3 and Au/TiO2 catalysts [J].
Boccuzzi, F ;
Chiorino, A ;
Manzoli, M ;
Andreeva, D ;
Tabakova, T .
JOURNAL OF CATALYSIS, 1999, 188 (01) :176-185
[5]   Au/TiO2 nanosized samples:: A catalytic, TEM, and FTIR study of the effect of calcination temperature on the CO oxidation [J].
Boccuzzi, F ;
Chiorino, A ;
Manzoli, M ;
Lu, P ;
Akita, T ;
Ichikawa, S ;
Haruta, M .
JOURNAL OF CATALYSIS, 2001, 202 (02) :256-267
[6]   Gold-catalysed oxidation of carbon monoxide [J].
Bond, GC ;
Thompson, DT .
GOLD BULLETIN, 2000, 33 (02) :41-51
[7]   Catalysis by gold [J].
Bond, GC ;
Thompson, DT .
CATALYSIS REVIEWS-SCIENCE AND ENGINEERING, 1999, 41 (3-4) :319-388
[8]   IONIZATION-POTENTIALS AND REACTIVITY OF COINAGE METAL-CLUSTERS [J].
CHEESEMAN, MA ;
EYLER, JR .
JOURNAL OF PHYSICAL CHEMISTRY, 1992, 96 (03) :1082-1087
[9]   All that glitters is not Au0 [J].
Davis, RJ .
SCIENCE, 2003, 301 (5635) :926-927
[10]   Structural and electronic properties of stable Aun (n=2-13) clusters: A density functional study [J].
Deka, Ajanta ;
Deka, Ramesh C. .
JOURNAL OF MOLECULAR STRUCTURE-THEOCHEM, 2008, 870 (1-3) :83-93