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Bakhsh S, Liu X, Wang Y, He L, Ren X. Beryllium and Magnesium Metal Clusters: New Globally Stable Structures and G0W0 Calculations. J Phys Chem A 2021; 125:1424-1435. [DOI: 10.1021/acs.jpca.0c08960] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Sunila Bakhsh
- CAS Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei, Anhui 230026, China
- Balochistan University of Information Technology, Engineering and Management Sciences, Quetta, Pakistan
| | - Xiaohui Liu
- Supercomputing Center, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Yanyong Wang
- CAS Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Lixin He
- CAS Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Xinguo Ren
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
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2
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Gilmour JTA, Gaston N. On the influence of exact exchange on transition metal superatoms. Phys Chem Chem Phys 2020; 22:772-780. [PMID: 31833486 DOI: 10.1039/c9cp04229f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The electronic structure of A7C (A = Hg, Pd, V, Cr, Mn, Fe, Ni, Cu; C = 0, ±1, ±2) clusters has been determined using density functional theory methods. The A7C (A = Hg, Pd, Cr, Cu; C = 0, ±1, ±2) clusters all conform to the existing superatomic model, with a sufficiently stabilised local structure to prevent perturbation upon the introduction of exact exchange to the exchange correlation functional. For the A7C (A = Mn, Fe, Ni; C = 0, ±1, ±2) clusters the incorporation of exact exchange separates the atomic s- and d-electrons, leading to a net increase in the number of superatomic electrons. Conversely the incorporation of exact exchange into the exchange correlation functional decreases the number of superatomic electrons for the V7C (C = 0, ±1, ±2) clusters, owing to the radial extension of the d-orbitals influencing their ability to contribute into superatomic shells.
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Affiliation(s)
- J T A Gilmour
- The MacDiarmid Institute for Advanced Materials and Nanotechnology, The Department of Physics, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.
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3
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Shabnam S, Mao Q, van Duin ACT, Luo KH. Evaluation of the effect of nickel clusters on the formation of incipient soot particles from polycyclic aromatic hydrocarbons via ReaxFF molecular dynamics simulations. Phys Chem Chem Phys 2019; 21:9865-9875. [PMID: 31033994 DOI: 10.1039/c9cp00354a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In the present study, the ReaxFF reactive molecular dynamics simulation method was applied to investigate the effect of a small nickel cluster (Ni13) on the formation of nascent soot from polycyclic aromatic hydrocarbon (PAH) precursors. A series of NVT simulations was performed for systems of a Ni13 cluster and various PAH monomers, namely, naphthalene, anthracene, pyrene, coronene, ovalene, and circumcoronene, at temperatures from 400 to 2500 K. At low temperatures, the PAHs form soot particles via binding and stacking around nickel clusters. Larger soot particles are formed due to the early initiation of clustering provided by nickel compared to those observed in homogenous PAH systems. At 1200-1600 K, the PAH monomers show a chemisorption tendency onto the nickel surface, which results in incipient soot particles. Chemical nucleation was observed at 2000 K where nickel-assisted dehydrogenation and chemisorption of PAH led to the growth of stable soot particles, which did not occur in the absence of Ni-clusters. At a high temperature (2500 K), nickel significantly accelerates the ring-opening and graphitization of PAH molecules and increases the size of the fullerene-type soot as compared to that of homogenous systems.
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Affiliation(s)
- Sharmin Shabnam
- Department of Mechanical Engineering, The Pennsylvania State University, University Park, PA 16802, USA.
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Gupta SS, van Huis MA. Intermetallic Differences at CdS-Metal (Ni, Pd, Pt, and Au) Interfaces: From Single-Atom to Subnanometer Metal Clusters. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2019; 123:9298-9310. [PMID: 31001370 PMCID: PMC6463539 DOI: 10.1021/acs.jpcc.9b02319] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Indexed: 06/09/2023]
Abstract
Metal co-catalysts tipped at a photocatalyst surface form a crucial component in the nanoheterostructures designed for the photocatalytic hydrogen evolution reaction. To examine the intermetallic differences and size effects at these interfaces, we use spin-polarized density functional theory to study single-atom, 13-atom, and 55-atom cluster depositions of Ni, Pd, Pt, and Au on the CdS(101̅0) surface. For the single metal atoms, the ground-state configuration was the same site for all of the elements. Analysis of the metal-CdS bonding and of the charge transfers revealed a Ni-Cd bonding complex leading to depletion of electronic charge at the Ni single atom and at deposited Ni clusters, in contrast to charge accumulation observed for the other three metals Pd, Pt, and Au. For scaling up sizes of the metal deposition, six subnanometer cluster types were selected over a wide range of cluster's effective coordination number, and their interfaces were differentiated by charge redistributions, structure and adhesion energies, highest occupied molecular orbital-lowest occupied molecular orbital (HOMO-LUMO) gaps, and Schottky barrier heights. Although all considered clusters are semiconducting in the gas phase, 9 out of 28 clusters became (semi)metallic after deposition on the CdS semiconductor surface. Intermetallic differences and common trends are discussed.
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Riley C, De La Riva A, Zhou S, Wan Q, Peterson E, Artyushkova K, Farahani MD, Friedrich HB, Burkemper L, Atudorei N, Lin S, Guo H, Datye A. Synthesis of Nickel‐Doped Ceria Catalysts for Selective Acetylene Hydrogenation. ChemCatChem 2019. [DOI: 10.1002/cctc.201801976] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Christopher Riley
- Department of Chemical and Biological Engineering and Center for Microengineered Materials University of New Mexico Albuquerque, New Mexico 87131 USA
| | - Andrew De La Riva
- Department of Chemical and Biological Engineering and Center for Microengineered Materials University of New Mexico Albuquerque, New Mexico 87131 USA
| | - Shulan Zhou
- Department of Chemistry and Chemical Biology University of New Mexico Albuquerque, New Mexico 87131 USA
- Department of Material Science and Engineering Jingdezhen Ceramic Institute Jingdezhen 333403 China
| | - Qiang Wan
- State Key Laboratory of Photocatalysis on Energy and Environment Fuzhou University Fuzhou 350002 China
| | - Eric Peterson
- Department of Chemical and Biological Engineering and Center for Microengineered Materials University of New Mexico Albuquerque, New Mexico 87131 USA
| | - Kateryna Artyushkova
- Department of Chemical and Biological Engineering and Center for Microengineered Materials University of New Mexico Albuquerque, New Mexico 87131 USA
| | - Majid D. Farahani
- Catalysis Research Group, School of Chemistry and Physics Westville Campus University of KwaZulu-Natal Durban 4000 South Africa
| | - Holger B. Friedrich
- Catalysis Research Group, School of Chemistry and Physics Westville Campus University of KwaZulu-Natal Durban 4000 South Africa
| | - Laura Burkemper
- Center for Stable Isotopes University of New Mexico Albuquerque, New Mexico 87131 USA
| | - Nicu‐Viorel Atudorei
- Center for Stable Isotopes University of New Mexico Albuquerque, New Mexico 87131 USA
| | - Sen Lin
- State Key Laboratory of Photocatalysis on Energy and Environment Fuzhou University Fuzhou 350002 China
| | - Hua Guo
- Department of Chemistry and Chemical Biology University of New Mexico Albuquerque, New Mexico 87131 USA
| | - Abhaya Datye
- Department of Chemical and Biological Engineering and Center for Microengineered Materials University of New Mexico Albuquerque, New Mexico 87131 USA
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6
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Chikhaoui A, Ziane M, Tazibt S, Bouarab S, Vega A. Unveiling the effects of doping small nickel clusters with a sulfur impurity. Theor Chem Acc 2018. [DOI: 10.1007/s00214-018-2320-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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7
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Jena P, Sun Q. Super Atomic Clusters: Design Rules and Potential for Building Blocks of Materials. Chem Rev 2018; 118:5755-5870. [DOI: 10.1021/acs.chemrev.7b00524] [Citation(s) in RCA: 302] [Impact Index Per Article: 50.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Puru Jena
- Physics Department, Virginia Commonwealth University, Richmond, Virginia 23284-2000, United States
| | - Qiang Sun
- Physics Department, Virginia Commonwealth University, Richmond, Virginia 23284-2000, United States
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8
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Mohrbach J, Dillinger S, Niedner-Schatteburg G. Probing cluster surface morphology by cryo kinetics of N2 on cationic nickel clusters. J Chem Phys 2017; 147:184304. [DOI: 10.1063/1.4997403] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Affiliation(s)
- Jennifer Mohrbach
- Fachbereich Chemie and Forschungszentrum OPTIMAS, TU Kaiserslautern, 67663 Kaiserslautern, Germany
| | - Sebastian Dillinger
- Fachbereich Chemie and Forschungszentrum OPTIMAS, TU Kaiserslautern, 67663 Kaiserslautern, Germany
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9
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Lazauskas T, Sokol AA, Woodley SM. An efficient genetic algorithm for structure prediction at the nanoscale. NANOSCALE 2017; 9:3850-3864. [PMID: 28252128 DOI: 10.1039/c6nr09072a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
We have developed and implemented a new global optimization technique based on a Lamarckian genetic algorithm with the focus on structure diversity. The key process in the efficient search on a given complex energy landscape proves to be the removal of duplicates that is achieved using a topological analysis of candidate structures. The careful geometrical prescreening of newly formed structures and the introduction of new mutation move classes improve the rate of success further. The power of the developed technique, implemented in the Knowledge Led Master Code, or KLMC, is demonstrated by its ability to locate and explore a challenging double funnel landscape of a Lennard-Jones 38 atom system (LJ38). We apply the redeveloped KLMC to investigate three chemically different systems: ionic semiconductor (ZnO)1-32, metallic Ni13 and covalently bonded C60. All four systems have been systematically explored on the energy landscape defined using interatomic potentials. The new developments allowed us to successfully locate the double funnels of LJ38, find new local and global minima for ZnO clusters, extensively explore the Ni13 and C60 (the buckminsterfullerene, or buckyball) potential energy surfaces.
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Affiliation(s)
- Tomas Lazauskas
- University College London, Kathleen Lonsdale Materials Chemistry, Department of Chemistry, 20 Gordon Street, London WC1H 0AJ, UK.
| | - Alexey A Sokol
- University College London, Kathleen Lonsdale Materials Chemistry, Department of Chemistry, 20 Gordon Street, London WC1H 0AJ, UK.
| | - Scott M Woodley
- University College London, Kathleen Lonsdale Materials Chemistry, Department of Chemistry, 20 Gordon Street, London WC1H 0AJ, UK.
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Chaves AS, Piotrowski MJ, Da Silva JLF. Evolution of the structural, energetic, and electronic properties of the 3d, 4d, and 5d transition-metal clusters (30 TMn systems for n = 2–15): a density functional theory investigation. Phys Chem Chem Phys 2017; 19:15484-15502. [DOI: 10.1039/c7cp02240a] [Citation(s) in RCA: 88] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Subnanometric transition-metal (TM) clusters have attracted great attention due to their unexpected physical and chemical properties, leastwise compared to their bulk counterparts.
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Affiliation(s)
- Anderson S. Chaves
- Gleb Wataghin Institute of Physics
- University of Campinas
- Campinas
- Brazil
- São Carlos Institute of Chemistry
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11
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Gomez-Ballesteros JL, Burgos JC, Lin PA, Sharma R, Balbuena PB. Nanocatalyst shape and composition during nucleation of single-walled carbon nanotubes. RSC Adv 2016; 5:106377-106386. [PMID: 26900454 PMCID: PMC4759658 DOI: 10.1039/c5ra21877b] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The dynamic evolution of nanocatalyst particle shape and carbon composition during the initial stages of single-walled carbon nanotube growth by chemical vapor deposition synthesis is investigated. Classical reactive and ab initio molecular dynamics simulations are used, along with environmental transmission electron microscope video imaging analyses. A clear migration of carbon is detected from the nanocatalyst/substrate interface, leading to a carbon gradient showing enrichment of the nanocatalyst layers in the immediate vicinity of the contact layer. However, as the metal nanocatalyst particle becomes saturated with carbon, a dynamic equilibrium is established, with carbon precipitating on the surface and nucleating a carbon cap that is the precursor of nanotube growth. A carbon composition profile decreasing towards the nanoparticle top is clearly revealed by the computational and experimental results that show a negligible amount of carbon in the nanoparticle region in contact with the nucleating cap. The carbon composition profile inside the nanoparticle is accompanied by a well-defined shape evolution of the nanocatalyst driven by the various opposing forces acting upon it both from the substrate and from the nascent carbon nanostructure. This new understanding suggests that tuning the nanoparticle/substrate interaction would provide unique ways of controlling the nanotube synthesis.
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Affiliation(s)
| | - Juan C. Burgos
- Department of Chemical Engineering, Texas A&M University, College Station, TX 77843-3122, USA
| | - Pin Ann Lin
- Center for Nanoscale Science and Technology, National Institute of Standards and Technology, Gaithersburg, MD 20899-6203, USA
- University of Maryland – IREAP, College Park, MD 20742, USA
| | - Renu Sharma
- University of Maryland – IREAP, College Park, MD 20742, USA
| | - Perla B. Balbuena
- Department of Chemical Engineering, Texas A&M University, College Station, TX 77843-3122, USA
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12
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Gutsev GL, Belay KG, Bozhenko KV, Gutsev LG, Ramachandran BR. A comparative study of small 3d-metal oxide (FeO)n, (CoO)n, and (NiO)n clusters. Phys Chem Chem Phys 2016; 18:27858-27867. [DOI: 10.1039/c6cp03241a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Geometrical and electronic structures of the 3d-metal oxide clusters (FeO)n, (CoO)n, and (NiO)n are computed using density functional theory with the generalized gradient approximation in the range of 1 ≤ n ≤ 10.
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Affiliation(s)
- G. L. Gutsev
- Department of Physics
- Florida A&M University
- Tallahassee
- USA
| | - K. G. Belay
- Department of Physics
- Florida A&M University
- Tallahassee
- USA
| | - K. V. Bozhenko
- Institute of Problems of Chemical Physics
- Russian Academy of Sciences
- Chernogolovka 142432
- Russia
- Department of Physical and Colloid Chemistry
| | - L. G. Gutsev
- Department of Chemistry and Biochemistry
- Florida State University
- Tallahassee
- USA
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13
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Polukhin VA, Vatolin NA. Stability and thermal evolution of transition metal and silicon clusters. RUSSIAN CHEMICAL REVIEWS 2015. [DOI: 10.1070/rcr4411] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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14
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Sushko GB, Verkhovtsev AV, Solov'yov AV. Validation of classical force fields for the description of thermo-mechanical properties of transition metal materials. J Phys Chem A 2014; 118:8426-36. [PMID: 24766551 DOI: 10.1021/jp501723w] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
It is demonstrated that classical force fields validated through the density functional theory (DFT) calculations of small titanium and nickel clusters can be applied for the description of thermo-mechanical properties of corresponding materials. This has been achieved by means of full-atom molecular dynamics simulations of nanoindentation of amorphous and nanostructured Ti and Ni-Ti materials. The theoretical analysis performed and comparison with experimental data demonstrate that the utilized classical force fields for Ti-Ti, Ni-Ni and Ni-Ti interactions describe reasonably well hardness and the Young's modulus of these materials. This observation is of the general nature and can be utilized for similar numerical exploration of thermo-mechanical properties of a broad range of materials.
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Affiliation(s)
- Gennady B Sushko
- Frankfurt Institute for Advanced Studies, Goethe-Universität Frankfurt am Main , Ruth-Moufang-Strasse 1, 60438 Frankfurt am Main, Germany
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15
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Ji J, Wang G, Wang T, You X, Xu X. Thiolate-protected Ni39 and Ni41 nanoclusters: synthesis, self-assembly and magnetic properties. NANOSCALE 2014; 6:9185-9191. [PMID: 24981393 DOI: 10.1039/c4nr01063a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Thiolate-protected soluble nickel clusters, Ni(39)(SC(2)H(4)Ph)24 and Ni(41)(SC(2)H(4)Ph)25, were synthesized via a wet chemical method. The cluster formulae were identified by MALDI-TOF. Possible structures of the clusters were discussed. These clusters exhibit ferromagnetism with hysteresis loops in the 1.8-300 K range. By solvent evaporation, the clusters can self-assemble into simple cubic structured crystals with a width in the range of 1-10 μm and length up to 300 μm. These properties shed light on their application potentials in nanomagnetics working at room temperature.
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Affiliation(s)
- Jianwei Ji
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, P. R. China.
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16
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Do DT, Mahanti SD, Pulikkoti JJ. Electronic structure of Zr-Ni-Sn systems: role of clustering and nanostructures in half-Heusler and Heusler limits. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2014; 26:275501. [PMID: 24925669 DOI: 10.1088/0953-8984/26/27/275501] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Half-Heusler and Heusler compounds have been of great interest for several decades for thermoelectric, magnetic, half-metallic and many other interesting properties. Among these systems, Zr-Ni-Sn compounds are interesting thermoelectrics which can go from semiconducting half-Heusler (HH) limit, ZrNiSn, to metallic Heusler (FH) limit, ZrNi2Sn. Recently Makongo et al (2011 J. Am. Chem. Soc. 133 18843) found that dramatic improvement in the thermoelectric power factor of HH can be achieved by putting excess Ni into the system. This was attributed to an energy filtering mechanism due to the presence of FH nanostructures in the HH matrix. Using density functional theory we have investigated clustering and nanostructure formation in ZrNi1+xSn (0 ⩽ x ⩽ 1) systems near the HH (x = 0) and FH (x = 1) ends and have found that excess Ni atoms in HH tend to stay close to each other and form nanoclusters. On the other hand, there is competing interaction between Ni-vacancies occupying different sites in FH which prevents them from forming vacancy nanoclusters. Effects of nano-inclusions on the electronic structure near HH and FH ends are discussed.
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Affiliation(s)
- Dat T Do
- Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA
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17
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How relevant is the choice of classical potentials in finding minimal energy cluster conformations? COMPUT THEOR CHEM 2013. [DOI: 10.1016/j.comptc.2013.07.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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18
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Gutsev GL, Weatherford CW, Belay KG, Ramachandran BR, Jena P. An all-electron density functional theory study of the structure and properties of the neutral and singly charged M12 and M13 clusters: M = Sc–Zn. J Chem Phys 2013; 138:164303. [DOI: 10.1063/1.4799917] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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19
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Shewale V, Deshpande M. Structural, electronic, and magnetic properties of NinM clusters (M=Hf, Ta, W) with n=1–12. COMPUT THEOR CHEM 2012. [DOI: 10.1016/j.comptc.2012.01.021] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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20
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Chikhaoui A, Haddab K, Bouarab S, Vega A. Density Functional Study of the Structures and Electronic Properties of Nitrogen-Doped Nin Clusters, n = 1–10. J Phys Chem A 2011; 115:13997-4005. [DOI: 10.1021/jp207861p] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- A. Chikhaoui
- Laboratoire de Physique et Chimie Quantique, Université Mouloud Mammeri de Tizi-Ouzou, B.P. No. 17 RP, 15000 Tizi-Ouzou, Algeria
| | - K. Haddab
- Laboratoire de Physique et Chimie Quantique, Université Mouloud Mammeri de Tizi-Ouzou, B.P. No. 17 RP, 15000 Tizi-Ouzou, Algeria
| | - S. Bouarab
- Laboratoire de Physique et Chimie Quantique, Université Mouloud Mammeri de Tizi-Ouzou, B.P. No. 17 RP, 15000 Tizi-Ouzou, Algeria
| | - A. Vega
- Departamento de Física Teórica, Atómica y Óptica, Universidad de Valladolid, Prado de la Magdalena s/n, E-47011 Valladolid, Spain
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21
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Venkataramanan NS, Sahara R, Mizuseki H, Kawazoe Y. Titanium-Doped Nickel Clusters TiNin (n = 1−12): Geometry, Electronic, Magnetic, and Hydrogen Adsorption Properties. J Phys Chem A 2010; 114:5049-57. [DOI: 10.1021/jp100459c] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
| | - Royoji Sahara
- Institute for Materials Research (IMR), 2-1-1, Katahira, Aoba-Ku, Sendai 980 8577, Japan
| | - Hiroshi Mizuseki
- Institute for Materials Research (IMR), 2-1-1, Katahira, Aoba-Ku, Sendai 980 8577, Japan
| | - Yoshiyuki Kawazoe
- Institute for Materials Research (IMR), 2-1-1, Katahira, Aoba-Ku, Sendai 980 8577, Japan
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22
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Harb M, Rabilloud F, Simon D. Structure and optical properties of core-shell bimetallic AgnNin clusters: Comparison with pure silver and nickel clusters. J Chem Phys 2009; 131:174302. [DOI: 10.1063/1.3257900] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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23
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Teng Y, Zeng X, Zhang H, Sun D. Melting and Glass Transition for Ni Clusters. J Phys Chem B 2007; 111:2309-12. [PMID: 17291034 DOI: 10.1021/jp070061k] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The melting of NiN clusters (N = 29, 50-150) has been investigated by using molecular dynamics (MD) simulations with a quantum corrected Sutton-Chen (Q-SC) many-body potential. Surface melting for Ni147, direct melting for Ni79, and the glass transition for Ni29 have been found, and those melting points are equal to 540, 680, and 940 K, respectively. It shows that the melting temperatures are not only size-dependent but also a symmetrical structure effect; in the neighborhood of the clusters, the cluster with higher symmetry has a higher melting point. From the reciprocal slopes of the caloric curves, the specific heats are obtained as 4.1 kB per atom for the liquid and 3.1 kB per atom for the solid; these values are not influenced by the cluster size apart in the transition region. The calculated results also show that latent heat of fusion is the dominant effect on the melting temperatures (Tm), and the relationship between S and L is given.
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Affiliation(s)
- Yuyong Teng
- College of Physics Science and Technology, Yangzhou University, Yangzhou 225002, China
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24
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Jena P, Castleman AW. Clusters: a bridge across the disciplines of physics and chemistry. Proc Natl Acad Sci U S A 2006; 103:10560-9. [PMID: 16835306 PMCID: PMC1636021 DOI: 10.1073/pnas.0601782103] [Citation(s) in RCA: 203] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Puru Jena
- *Department of Physics, Virginia Commonwealth University, Richmond, VA 23284; and
- To whom correspondence may be addressed. E-mail:
or
| | - A. W. Castleman
- Departments of Chemistry and Physics, Pennsylvania State University, University Park, PA 16802
- To whom correspondence may be addressed. E-mail:
or
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Abstract
Density-functional theory has been used to determine the ground-state geometries and electronic states for homonuclear transition-metal trimers constrained to equilateral triangle geometries. This represents the first application of consistent theoretical methods to all of the ten 3d block transition-metal trimers, from scandium to zinc. A search of the potential surfaces yields the following electronic ground states and bond lengths: Sc3(2A1',2.83 A), Ti3(7E',2.32 A), V3(2E",2.06 A), Cr3(17E',2.92 A), Mn3(16A2',2.73 A), Fe3(11E",2.24 A), Co3(6E",2.18 A), Ni3(3A2",2.23 A), Cu3(2E',2.37 A), and Zn3(1A1',2.93 A). Vibrational frequencies, several low-lying electronic states, and trends in bond lengths and atomization energies are discussed. The predicted dissociation energies DeltaE(M3-->M2+M) are 49.4 kcal mol(-1)(Sc3), 64.3 kcal mol(-1)(Ti3), 60.7 kcal mol(-1)(V3), 11.5 kcal mol(-1)(Cr3), 32.4 kcal mol(-1)(Mn3), 61.5 kcal mol(-1)(Fe3), 78.0 kcal mol(-1)(Co3), 86.1 kcal mol(-1)(Ni3), 26.8 kcal mol(-1)(Cu3), and 4.5 kcal mol(-1)(Zn3).
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Affiliation(s)
- Brian N Papas
- Center for Computational Chemistry, University of Georgia, Athens, Georgia 30602, USA
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Zhang Z, Hu W, Xiao S. Shell and subshell periodic structures of icosahedral nickel nanoclusters. J Chem Phys 2005; 122:214501. [PMID: 15974748 DOI: 10.1063/1.1925278] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Using the modified analytic embedded atom method and molecular dynamics, the binding energies and their second order finite differences (stability functions) of icosahedral Ni clusters with shell and subshell periodicity are studied in detail via atomic evolution. The results exhibit shell and subshell structures of the clusters with atoms from 147 to 250,000, and the atomic numbers corresponding to shell or subshell structures are in good agreement with the experimental magic numbers obtained in time-of-flight mass spectra of threshold photoionization, and Martin's theoretical proposition of progressive formation of atomic umbrellas. Clusters with size from 147 to 561 atoms are energetically investigated via one-by-one atomic evolution and their magic numbers are theoretically proved. For medium-size Ni clusters with 561 to 2057 atoms, the prediction of magic numbers with atomic numbers is performed on the basis of umbrella-like subshell growth in near face-edge-vertex order. The similarity of the energy curves makes it possible to extend the prediction to even larger Ni nanoclusters in hierarchical Mackay icosahedral configurations.
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Affiliation(s)
- Zhi Zhang
- Department of Applied Physics, Hunan University, 410082 Changsha, Hunan, People's Republic of China
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Diaconu CV, Cho AE, Doll JD, Freeman DL. Broken-symmetry unrestricted hybrid density functional calculations on nickel dimer and nickel hydride. J Chem Phys 2004; 121:10026-40. [PMID: 15549878 DOI: 10.1063/1.1798992] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
In the present work we investigate the adequacy of broken-symmetry unrestricted density functional theory for constructing the potential energy curve of nickel dimer and nickel hydride, as a model for larger bare and hydrogenated nickel cluster calculations. We use three hybrid functionals: the popular B3LYP, Becke's newest optimized functional Becke98, and the simple FSLYP functional (50% Hartree-Fock and 50% Slater exchange and LYP gradient-corrected correlation functional) with two basis sets: all-electron (AE) Wachters+f basis set and Stuttgart RSC effective core potential (ECP) and basis set. We find that, overall, the best agreement with experiment, comparable to that of the high-level CASPT2, is obtained with B3LYP/AE, closely followed by Becke98/AE and Becke98/ECP. FSLYP/AE and B3LYP/ECP give slightly worse agreement with experiment, and FSLYP/ECP is the only method among the ones we studied that gives an unacceptably large error, underestimating the dissociation energy of Ni(2) by 28%, and being in the largest disagreement with the experiment and the other theoretical predictions. We also find that for Ni(2), the spin projection for the broken-symmetry unrestricted singlet states changes the ordering of the states, but the splittings are less than 10 meV. All our calculations predict a deltadelta-hole ground state for Ni(2) and delta-hole ground state for NiH. Upon spin projection of the singlet state of Ni(2), almost all of our calculations: Becke98 and FSLYP both AE and ECP and B3LYP/AE predict (1)(d(A)(x(2)-y(2)d(B)(x(2)-y(2)) or (1)(d(A)(xy) (d)(B)(xy)) ground state, which is a mixture of (1)Sigma(g) (+) and (1)Gamma(g). B3LYP/ECP predicts a (3)(d(A)(x(2)-y(2))d(B)(xy) (mixture of (3)Sigma(g) (-) and (3)Gamma(u)) ground state virtually degenerate with the (1)(d(A)(x(2)-y(2)d(B)(x)(2)-y(2)/(1)(d(A)(xy)D(B)(xy) state. The doublet delta-hole ground state of NiH predicted by all our calculations is in agreement with the experimentally predicted (2)Delta ground state. For Ni(2), all our results are consistent with the experimentally predicted ground state of 0(g) (+) (a mixture of (1)Sigma(g) (+) and (3)Sigma(g) (-)) or 0(u) (-) (a mixture of (1)Sigma(u) (-) and (3)Sigma(u) (+)).
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Affiliation(s)
- Cristian V Diaconu
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, USA.
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Chui YH, Chan KY. Structures and Energetics of Platinum–Cobalt Bimetallic Clusters. MOLECULAR SIMULATION 2004. [DOI: 10.1080/08927020412331279929] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Erkoç S, Oymak H. AlTiNi Ternary Alloy Clusters: Molecular Dynamics Simulations and Density Functional Theory Calculations. J Phys Chem B 2003. [DOI: 10.1021/jp034275n] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sakir Erkoç
- Department of Physics, Middle East Technical University, 06531 Ankara, Turkey
| | - Hüseyin Oymak
- Department of Physics, Middle East Technical University, 06531 Ankara, Turkey
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Knickelbein MB. Nickel clusters: The influence of adsorbates on magnetic moments. J Chem Phys 2002. [DOI: 10.1063/1.1477175] [Citation(s) in RCA: 81] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Ruette F, González C. The importance of global minimization and adequate theoretical tools for cluster optimization: the Ni6 cluster case. Chem Phys Lett 2002. [DOI: 10.1016/s0009-2614(02)00733-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Tran NT, Powell DR, Dahl LF. Nanosized Pd(145)(CO)(x)(PEt(3))(30) Containing a Capped Three-Shell 145-Atom Metal-Core Geometry of Pseudo Icosahedral Symmetry This research was supported by the National Science Foundation (CHE-9729555). The CCD area detector system was purchased in part in 1995 with a NSF grant (CHE-9310428). Color figures were made with Crystal Maker, Interactive Crystallography for MacOS (David Palmer). Dedicated by L.F.D. to Professor Dr. Heinrich Vahrenkamp, an exceptional Inorganic Chemist and special friend, at the Festkolloquium (May 19, 2000) at the University of Freiburg. Angew Chem Int Ed Engl 2000; 39:4121-4125. [PMID: 11093227 DOI: 10.1002/1521-3773(20001117)39:22<4121::aid-anie4121>3.0.co;2-a] [Citation(s) in RCA: 149] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- NT Tran
- Department of Chemistry University of Wisconsin-Madison 1101 University Avenue, Madison, WI 53706 (USA)
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Tran N, Powell D, Dahl L. Nanosized Pd145(CO)x(PEt3)30 Containing a Capped Three-Shell 145-Atom Metal-Core Geometry of Pseudo Icosahedral Symmetry. Angew Chem Int Ed Engl 2000. [DOI: 10.1002/1521-3757(20001117)112:22<4287::aid-ange4287>3.0.co;2-1] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Alonso JA. Electronic and atomic structure, and magnetism of transition-metal clusters. Chem Rev 2000; 100:637-78. [PMID: 11749247 DOI: 10.1021/cr980391o] [Citation(s) in RCA: 273] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- J A Alonso
- Departamento de Física Teórica, Universidad de Valladolid, 47011 Valladolid, Spain
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Estiú GL, Cory MG, Zerner MC. Projected Unrestricted Hartree−Fock Calculations and the Magnetism of Large Nickel Clusters. J Phys Chem A 1999. [DOI: 10.1021/jp991863l] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Guillermina Lucia Estiú
- CEQUINOR, Departamento de Quimica, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CC 962, CP 1900, La Plata, Argentina
| | - Marshall G. Cory
- Quantum Theory Project, University of Florida, Gainesville, Florida 32611
| | - Michael C. Zerner
- Quantum Theory Project, University of Florida, Gainesville, Florida 32611
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Vann WD, Bell RC, Castleman AW. Gas-Phase Reactions of Nickel and Nickel Oxide Clusters with Nitrogen Oxides. 3. Reactions of Cations with Nitric Oxide. J Phys Chem A 1999. [DOI: 10.1021/jp992893r] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- W. D. Vann
- Department of Chemistry, Pennsylvania State University, 152 Davey Laboratory, University Park, Pennsylvania 16802
| | - R. C. Bell
- Department of Chemistry, Pennsylvania State University, 152 Davey Laboratory, University Park, Pennsylvania 16802
| | - A. W. Castleman
- Department of Chemistry, Pennsylvania State University, 152 Davey Laboratory, University Park, Pennsylvania 16802
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Abstract
Atoms and small molecules react with transition metal clusters in ways that are analogous to the physisorption and chemisorption reactions observed on the corresponding extended metal surface. However, often underlying these similarities are size-dependent variations in the reaction mechanisms and rates, the interpretation of which requires a detailed understanding of the structures of both the bare metal cluster substrates and the cluster-molecule complexes. Although polyatomic transition metal clusters cannot be characterized by the traditional methods of molecular spectroscopy, the combination of other physical and chemical probes can provide qualitative and semiquantitative structural information. These techniques, when combined with equilibrium geometries calculated using ab initio or semiempirical methods, provide a detailed picture of the structural origin of metal cluster reactivity and its variation with size.
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Affiliation(s)
- M B Knickelbein
- Chemistry Division, Argonne National Laboratory, Argonne, IL 60439, USA.
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Reddy BV, Nayak SK, Khanna SN, Rao BK, Jena P. Physics of Nickel Clusters. 2. Electronic Structure and Magnetic Properties. J Phys Chem A 1998. [DOI: 10.1021/jp980262b] [Citation(s) in RCA: 105] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- B. V. Reddy
- Physics Department, Virginia Commonwealth University, Richmond, Virginia 23284-2000
| | - S. K. Nayak
- Physics Department, Virginia Commonwealth University, Richmond, Virginia 23284-2000
| | - S. N. Khanna
- Physics Department, Virginia Commonwealth University, Richmond, Virginia 23284-2000
| | - B. K. Rao
- Physics Department, Virginia Commonwealth University, Richmond, Virginia 23284-2000
| | - P. Jena
- Physics Department, Virginia Commonwealth University, Richmond, Virginia 23284-2000
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Probing the electronic structure of transition metal clusters from molecular to bulk-like using photoelectron spectroscopy. ACTA ACUST UNITED AC 1998. [DOI: 10.1016/s1075-1629(98)80012-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
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Parks EK, Nieman GC, Kerns KP, Riley SJ. Reactions of Ni38 with N2, H2, and CO: Cluster structure and adsorbate binding sites. J Chem Phys 1997. [DOI: 10.1063/1.474536] [Citation(s) in RCA: 65] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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