Effect of composition and distribution on structural and surface electronic properties of palladium-gold bimetallic nanoparticles: a density functional theory investigation

Verfasser / Beitragende:
[Chuang Yang, Ning Wang, Yongpeng Yang, Shiping Huang]
Ort, Verlag, Jahr:
2015
Enthalten in:
Theoretical Chemistry Accounts, 134/10(2015-10-01), 1-8
Format:
Artikel (online)
ID: 605487855
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024 7 0 |a 10.1007/s00214-015-1727-2  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s00214-015-1727-2 
245 0 0 |a Effect of composition and distribution on structural and surface electronic properties of palladium-gold bimetallic nanoparticles: a density functional theory investigation  |h [Elektronische Daten]  |c [Chuang Yang, Ning Wang, Yongpeng Yang, Shiping Huang] 
520 3 |a The effects of atomic composition and distribution on structural and surface electronic properties of a series of Pd-Au bimetallic nanoparticles are systematically investigated by density functional theory. We employed the 55-atom icosahedral model structure in this work. It is found that the structure with more Pd-Au bonds number presents more stability. For the Pd-Au bimetallic NPs, the electrons redistribution of the surface atoms, especially for the Au atoms, is strongly influenced by the atomic distribution. The valance d-band vacancy number of the surface Pd and Au atoms decreases due to the mixing of the two metals. In contrast to the Au atoms, the d-band center of the surface Pd changes almost linearly with the Pd composition increasing. In addition, the d-band center of the vertex atoms is closer to the Fermi level compared with that of the edge atoms in Pd n Au55−n bimetallic NPs. The investigations may be helpful in designing catalysis of Pd-Au bimetallic NPs since d-band center could be used as a general measure of local surface reactivity. 
540 |a Springer-Verlag Berlin Heidelberg, 2015 
690 7 |a Surface electronic properties  |2 nationallicence 
690 7 |a Pd-Au bimetallic NPs  |2 nationallicence 
690 7 |a Composition distribution  |2 nationallicence 
690 7 |a Density functional theory  |2 nationallicence 
700 1 |a Yang  |D Chuang  |u State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, 100029, Beijing, China  |4 aut 
700 1 |a Wang  |D Ning  |u State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, 100029, Beijing, China  |4 aut 
700 1 |a Yang  |D Yongpeng  |u State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, 100029, Beijing, China  |4 aut 
700 1 |a Huang  |D Shiping  |u State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, 100029, Beijing, China  |4 aut 
773 0 |t Theoretical Chemistry Accounts  |d Springer Berlin Heidelberg  |g 134/10(2015-10-01), 1-8  |x 1432-881X  |q 134:10<1  |1 2015  |2 134  |o 214 
856 4 0 |u https://doi.org/10.1007/s00214-015-1727-2  |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/s00214-015-1727-2  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Yang  |D Chuang  |u State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, 100029, Beijing, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Wang  |D Ning  |u State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, 100029, Beijing, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Yang  |D Yongpeng  |u State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, 100029, Beijing, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Huang  |D Shiping  |u State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, 100029, Beijing, China  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Theoretical Chemistry Accounts  |d Springer Berlin Heidelberg  |g 134/10(2015-10-01), 1-8  |x 1432-881X  |q 134:10<1  |1 2015  |2 134  |o 214