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Kloppenburg J, Pedersen A, Laasonen K, Caro MA, Jónsson H. Reassignment of magic numbers for icosahedral Au clusters: 310, 564, 928 and 1426. NANOSCALE 2022; 14:9053-9060. [PMID: 35704390 DOI: 10.1039/d2nr01763f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Icosahedral Au clusters with three and four shells of atoms are found to deviate significantly from the commonly assumed Mackay structures. By introducing additional atoms in the surface shell and creating a vacancy in the center of the cluster, the calculated energy per atom can be lowered significantly, according to several different descriptions of the interatomic interaction. Analogous icosahedral structures with five and six shells of atoms are generated using the same structural motifs and are similarly found to be more stable than Mackay icosahedra. The lowest energy per atom obtained here is for clusters containing 310, 564, 928 and 1426 atoms, as compared with the commonly assumed magic numbers of 309, 561, 923 and 1415. Some of the vertices in the optimized clusters have a hexagonal ring of atoms, rather than a pentagon, with the vertex atom missing. An inner shell atom in some cases moves outwards by more than an Ångström into the surface shell at such a vertex site. This feature, as well as the wide distribution of nearest-neighbor distances in the surface layer, can strongly influence the properties of icosahedral clusters, for example catalytic activity. The structural optimization is initially carried out using the GOUST method with atomic forces estimated with the EMT empirical potential function, but the atomic coordinates are then refined by minimization using electron density functional theory (DFT) or Gaussian approximation potential (GAP). A single energy barrier is found to separate the Mackay icosahedron from a lower energy structure where a string of atoms moves outwards in a concerted manner from the center so as to create a central vacancy while placing an additional atom in the surface shell.
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Affiliation(s)
- Jan Kloppenburg
- Department of Electrical Engineering and Automation, Aalto University, FIN-02150 Aalto, Finland
| | - Andreas Pedersen
- Science Institute and Faculty of Physical Sciences, University of Iceland VR-III, 107 Reykjavík, Iceland.
| | - Kari Laasonen
- Department of Chemistry and Materials Science, Aalto University, FI-00076 Aalto, Finland
| | - Miguel A Caro
- Department of Electrical Engineering and Automation, Aalto University, FIN-02150 Aalto, Finland
| | - Hannes Jónsson
- Science Institute and Faculty of Physical Sciences, University of Iceland VR-III, 107 Reykjavík, Iceland.
- Department of Applied Physics, Aalto University, FI-00076 Aalto, Finland
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2
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Nguyen L, Tao FF, Tang Y, Dou J, Bao XJ. Understanding Catalyst Surfaces during Catalysis through Near Ambient Pressure X-ray Photoelectron Spectroscopy. Chem Rev 2019; 119:6822-6905. [DOI: 10.1021/acs.chemrev.8b00114] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Luan Nguyen
- Institute of In Situ/Operando Studies of Catalysis and State Key Laboratory of Photocatalysis on Energy and Environment and College of Chemistry, Fuzhou University, Fuzhou 350116, China
- Department of Chemical and Petroleum Engineering, University of Kansas, Lawrence, Kansas 66045, United States
| | - Franklin Feng Tao
- Institute of In Situ/Operando Studies of Catalysis and State Key Laboratory of Photocatalysis on Energy and Environment and College of Chemistry, Fuzhou University, Fuzhou 350116, China
- Department of Chemical and Petroleum Engineering, University of Kansas, Lawrence, Kansas 66045, United States
| | - Yu Tang
- Institute of In Situ/Operando Studies of Catalysis and State Key Laboratory of Photocatalysis on Energy and Environment and College of Chemistry, Fuzhou University, Fuzhou 350116, China
- Department of Chemical and Petroleum Engineering, University of Kansas, Lawrence, Kansas 66045, United States
| | - Jian Dou
- Department of Chemical and Petroleum Engineering, University of Kansas, Lawrence, Kansas 66045, United States
| | - Xiao-Jun Bao
- School of Chemical Engineering, Fuzhou University, Fuzhou 350116, China
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3
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Saint-Lager MC, Languille MA, Aires FJCS, Bailly A, Garaudée S, Ehret E, Robach O. Carbon Monoxide Oxidation Promoted by a Highly Active Strained PdO Layer at the Surface of Au30Pd70(110). ACS Catal 2019. [DOI: 10.1021/acscatal.8b04190] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - Marie-Angélique Languille
- Université Lyon, Université Claude Bernard Lyon 1, CNRS, IRCELYON − UMR 5256, 69626 Villeurbanne, France
| | - Francisco J. Cadete Santos Aires
- Université Lyon, Université Claude Bernard Lyon 1, CNRS, IRCELYON − UMR 5256, 69626 Villeurbanne, France
- Laboratory for Catalytic Research, National Research Tomsk State University, 634050 Tomsk, Russia
| | - Aude Bailly
- CNRS Institut Néel and Université Grenoble Alpes, 38000 Grenoble, France
| | - Stéphanie Garaudée
- CNRS Institut Néel and Université Grenoble Alpes, 38000 Grenoble, France
| | - Eric Ehret
- Université Lyon, Université Claude Bernard Lyon 1, CNRS, IRCELYON − UMR 5256, 69626 Villeurbanne, France
| | - Odile Robach
- Université Grenoble Alpes, CEA, INAC-MEM, 38000 Grenoble, France
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Wilson A, Bailly A, Bernard R, Borensztein Y, Coati A, Croset B, Cruguel H, Naitabdi A, Silly M, Saint-Lager MC, Vlad A, Witkowski N, Garreau Y, Prevot G. Gas-induced selective re-orientation of Au-Cu nanoparticles on TiO 2 (110). NANOSCALE 2019; 11:752-761. [PMID: 30566167 DOI: 10.1039/c8nr07645f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Au-Cu bimetallic nanoparticles (NPs) grown on TiO2(110) have been followed in situ using grazing incidence X-ray diffraction and X-ray photoemission spectroscopy from their synthesis to their exposure to a CO/O2 mixture at low pressure (P < 10-5 mbar) and at different temperatures (300 K-470 K). As-prepared samples are composed of two types of alloyed NPs: randomly oriented and epitaxial NPs. Whereas the introduction of CO has no effect on the structure of the NPs, an O2 introduction triggers a Cu surface segregation phenomenon resulting in the formation of a Cu2O shell reducible by annealing the sample over 430 K. A selective re-orientation of the nanoparticles, induced by the exposure to a CO/O2 mixture, is observed where the randomly oriented NPs take advantage of the mobility induced by the Cu segregation to re-orient their Au-rich core relatively to the TiO2(110) substrate following specifically the orientation ((111)NPs//(110)TiO2) when others epitaxial relationships were observed on the as-prepared sample.
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Affiliation(s)
- Axel Wilson
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, UMR 7588, F-75005, Paris, France.
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5
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Joly Y, Abisset A, Bailly A, De Santis M, Fettar F, Grenier S, Mannix D, Ramos AY, Saint-Lager MC, Soldo-Olivier Y, Tonnerre JM, Guda SA, Gründer Y. Simulation of Surface Resonant X-ray Diffraction. J Chem Theory Comput 2018; 14:973-980. [DOI: 10.1021/acs.jctc.7b01032] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yves Joly
- Université Grenoble Alpes,
CNRS, Grenoble INP, Institut Néel, 38042 Grenoble, France
| | - Antoine Abisset
- Université Grenoble Alpes,
CNRS, Grenoble INP, Institut Néel, 38042 Grenoble, France
| | - Aude Bailly
- Université Grenoble Alpes,
CNRS, Grenoble INP, Institut Néel, 38042 Grenoble, France
| | - Maurizio De Santis
- Université Grenoble Alpes,
CNRS, Grenoble INP, Institut Néel, 38042 Grenoble, France
| | - Farid Fettar
- Université Grenoble Alpes,
CNRS, Grenoble INP, Institut Néel, 38042 Grenoble, France
| | - Stéphane Grenier
- Université Grenoble Alpes,
CNRS, Grenoble INP, Institut Néel, 38042 Grenoble, France
| | - Danny Mannix
- Université Grenoble Alpes,
CNRS, Grenoble INP, Institut Néel, 38042 Grenoble, France
| | - Aline Y. Ramos
- Université Grenoble Alpes,
CNRS, Grenoble INP, Institut Néel, 38042 Grenoble, France
| | | | - Yvonne Soldo-Olivier
- Université Grenoble Alpes,
CNRS, Grenoble INP, Institut Néel, 38042 Grenoble, France
| | - Jean-Marc Tonnerre
- Université Grenoble Alpes,
CNRS, Grenoble INP, Institut Néel, 38042 Grenoble, France
| | - Sergey A. Guda
- Institute for Mathematics, Mechanics, and Computer Science, Southern Federal University, 344090 Rostov-on-Don, Russia
| | - Yvonne Gründer
- Oliver Lodge Laboratory, Department of Physics, University of Liverpool, Liverpool L69 7ZE, United Kingdom
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Wang YG, Cantu DC, Lee MS, Li J, Glezakou VA, Rousseau R. CO Oxidation on Au/TiO2: Condition-Dependent Active Sites and Mechanistic Pathways. J Am Chem Soc 2016; 138:10467-76. [DOI: 10.1021/jacs.6b04187] [Citation(s) in RCA: 131] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Yang-Gang Wang
- Institute
for Interfacial Catalysis, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - David C. Cantu
- Institute
for Interfacial Catalysis, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Mal-Soon Lee
- Institute
for Interfacial Catalysis, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Jun Li
- Department
of Chemistry, Tsinghua University, Beijing 100084, China
| | - Vassiliki-Alexandra Glezakou
- Institute
for Interfacial Catalysis, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Roger Rousseau
- Institute
for Interfacial Catalysis, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
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Ivarsson DCA, Neumann M, Levin AA, Keilhauer T, Wochner P, Armbrüster M. In Operando GIXRD and XRR on Polycrystalline In52Pd48. Z Anorg Allg Chem 2014. [DOI: 10.1002/zaac.201400223] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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8
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Vilhelmsen LB, Hammer B. Identification of the Catalytic Site at the Interface Perimeter of Au Clusters on Rutile TiO2(110). ACS Catal 2014. [DOI: 10.1021/cs500202f] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Lasse B. Vilhelmsen
- Interdisciplinary Nanoscience
Center (iNANO) and Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark
| | - Bjørk Hammer
- Interdisciplinary Nanoscience
Center (iNANO) and Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark
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