Catalytic mechanisms of Au11 and Au11-nPtn ( n =1-2) clusters: a DFT investigation on the oxidation of CO by O2

Verfasser / Beitragende:
[Xueli Cheng, Yanyun Zhao, Feng Li, Yongjun Liu]
Ort, Verlag, Jahr:
2015
Enthalten in:
Journal of Molecular Modeling, 21/9(2015-09-01), 1-11
Format:
Artikel (online)
ID: 605511322
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024 7 0 |a 10.1007/s00894-015-2780-4  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s00894-015-2780-4 
245 0 0 |a Catalytic mechanisms of Au11 and Au11-nPtn ( n =1-2) clusters: a DFT investigation on the oxidation of CO by O2  |h [Elektronische Daten]  |c [Xueli Cheng, Yanyun Zhao, Feng Li, Yongjun Liu] 
520 3 |a The oxidation of CO catalyzed by clusters of Au11, Au10Pt and Au9Pt2 was investigated using the M06 functional suite of the density functional theory. Au and Pt atoms were described with the double-ζ valence basis set Los Alamos National Laboratory 2-double-z (LanL2DZ), whereas the standard 6-311++G(d,p) basis set was employed for the C and O atoms. Our theoretical model showed that (1) after coordination to Au and Au-Pt cluster, O2 and CO are apparently activated, and Mulliken charges show that the gold atoms in the active sites of Au11 are negatively charged; (2) Au-Pt clusters with 11 atoms can effectively catalyze the oxidation of CO by O2; (3) Au11 exhibits good catalytic performance for the oxidation of CO; (4) oxidation of CO occurs preferably on the Au-Pt active sites in Pt-doped clusters, and the single-center mechanisms are more favorable energetically than the two-center mechanisms; (5) after adsorption, an O2 molecule oxidates two CO molecules via stepwise mechanisms; and (6) the catalytic processes are highly exothermic. 
540 |a Springer-Verlag Berlin Heidelberg, 2015 
690 7 |a CO oxidation  |2 nationallicence 
690 7 |a Au11 clusters  |2 nationallicence 
690 7 |a DFT  |2 nationallicence 
690 7 |a Au10Pt  |2 nationallicence 
690 7 |a Au9Pt2  |2 nationallicence 
700 1 |a Cheng  |D Xueli  |u School of Chemistry and Chemical Engineering, Taishan University, 271021, Tai'an, Shandong, China  |4 aut 
700 1 |a Zhao  |D Yanyun  |u School of Chemistry and Chemical Engineering, Taishan University, 271021, Tai'an, Shandong, China  |4 aut 
700 1 |a Li  |D Feng  |u School of Physics and Electronic Engineering, Taishan University, 271021, Tai'an, Shandong, China  |4 aut 
700 1 |a Liu  |D Yongjun  |u School of Chemistry and Chemical Engineering, Shandong University, 250100, Jinan, Shandong, China  |4 aut 
773 0 |t Journal of Molecular Modeling  |d Springer Berlin Heidelberg  |g 21/9(2015-09-01), 1-11  |x 1610-2940  |q 21:9<1  |1 2015  |2 21  |o 894 
856 4 0 |u https://doi.org/10.1007/s00894-015-2780-4  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s00894-015-2780-4  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Cheng  |D Xueli  |u School of Chemistry and Chemical Engineering, Taishan University, 271021, Tai'an, Shandong, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Zhao  |D Yanyun  |u School of Chemistry and Chemical Engineering, Taishan University, 271021, Tai'an, Shandong, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Li  |D Feng  |u School of Physics and Electronic Engineering, Taishan University, 271021, Tai'an, Shandong, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Liu  |D Yongjun  |u School of Chemistry and Chemical Engineering, Shandong University, 250100, Jinan, Shandong, China  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Journal of Molecular Modeling  |d Springer Berlin Heidelberg  |g 21/9(2015-09-01), 1-11  |x 1610-2940  |q 21:9<1  |1 2015  |2 21  |o 894