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Bakhsh S, Aslam S, Khalid M, Sohail M, Zafar S, Wadood SA, Morsy K, Iqbal MA. Ca n neutral clusters: a two-step G 0 W 0 and DFT benchmark. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2024; 15:1010-1016. [PMID: 39136042 PMCID: PMC11318633 DOI: 10.3762/bjnano.15.82] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Accepted: 07/24/2024] [Indexed: 08/15/2024]
Abstract
Electronic and structural properties of calcium clusters with a varying size range of 2-20 atoms are studied using a two-step scheme within the GW and density functional theory (DFT) with generalized gradient approximation (GGA). The GGA overestimates the binding energies, optimized geometries, electron affinities, and ionization potentials reported in the benchmark. The ground-state structure geometry and binding energy were obtained from the DFT for the ground-state structure of each cluster. The binding energy of the neutral clusters of the calcium series follows an increasing trend, except for a few stable even and odd clusters. The electronic properties of the calcium cluster were studied with an all-electron FHI-aims code. In the G 0 W 0 calculation, the magic cluster Ca10 has relatively high ionization potential and low electron affinity. The obtained ionization potentials from the G 0 W 0 @PBE calculation showed that the larger cluster has less variation, whereas the electron affinities of the series have an increasing trend. The ionization potentials from the G 0 W 0 benchmark for the calcium cluster series have not yet been described in the literature.
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Affiliation(s)
- Sunila Bakhsh
- Department of Physics, Balochistan University of Information Technology Engineering and Management Sciences, Quetta 87300, Pakistan
| | - Sameen Aslam
- Department of Physics, Balochistan University of Information Technology Engineering and Management Sciences, Quetta 87300, Pakistan
| | - Muhammad Khalid
- Department of Physics, Balochistan University of Information Technology Engineering and Management Sciences, Quetta 87300, Pakistan
| | - Muhammad Sohail
- Department of Physics, University of Balochistan, Quetta 87300, Pakistan
| | - Sundas Zafar
- Department of Physics, Sardar Bahadur Khan Women University, Quetta 87300, Pakistan
| | - Sumayya Abdul Wadood
- Department of Physics, Balochistan University of Information Technology Engineering and Management Sciences, Quetta 87300, Pakistan
| | - Kareem Morsy
- Biology Department, College of Science, King Khalid University, Abha 61421, Saudi Arabia
| | - Muhammad Aamir Iqbal
- School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
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Liu T, Yuan YQ, Yang H, Jiang HM, Huang TX, Gao JH, Hu YF. Investigating the structural and electronic properties of anionic calcium-doped magnesium clusters. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.135195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
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Zhang XL, Ye YL, Zhang L, Li XH, Yu D, Chen JH, Sun WM. Designing an alkali-metal-like superatom Ca 3B for ambient nitrogen reduction to ammonia. Phys Chem Chem Phys 2021; 23:18908-18915. [PMID: 34612429 DOI: 10.1039/d1cp01533h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Converting earth-abundant nitrogen (N2) gas into ammonia (NH3) under mild conditions is one of the most important issues and a long-standing challenge in chemistry. Herein, a new superatom Ca3B was theoretically designed and characterized to reveal its catalytic performance in converting N2 into NH3 by means of density functional theory (DFT) computations. The alkali-metal-like identity of this cluster is verified by its lower vertical ionization energy (VIE, 4.29 eV) than that of potassium (4.34 eV), while its high stability was guaranteed by the large HOMO-LUMO gap and binding energy per atom (Eb). More importantly, this well-designed superatom possesses unique geometric and electronic features, which can fully activate N2via a "double-electron transfer" mechanism, and then convert the activated N2 into NH3 through a distal reaction pathway with a small energy barrier of 0.71 eV. It is optimistically hoped that this work could intrigue more endeavors to design specific superatoms as excellent catalysts for the chemical adsorption and reduction of N2 to NH3.
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Affiliation(s)
- Xiao-Ling Zhang
- Department of Basic Chemistry, The School of Pharmacy, Fujian Medical University, Fuzhou 350108, People's Republic of China.
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Chronis AG, Michos FI, Garoufalis CS, Sigalas MM. Structural and optical properties of Be, Mg and Ca nanorods and nanodisks. Phys Chem Chem Phys 2021; 23:1849-1858. [PMID: 33439173 DOI: 10.1039/d0cp05780k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Nanorods and nanodisks of Be, Mg, and Ca with different shapes and sizes have been theoretically studied. Stable structures have been identified and their electronic and optical properties have been thoroughly examined by means of Density Functional Theory (DFT), Time Dependent DFT (TDDFT) and Real Time TDDFT (RT-TDDFT) calculations. The derived properties and trends are systematically compared to the corresponding ones of 0D structures revealing the effect of size and dimensionality. On top of that, the possible emergence of plasmonic behavior for intense resonance peaks of larger nanoparticles is also examined with the help of suitable transition contribution maps (TCM) and induced density isosurface plots.
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Affiliation(s)
- A G Chronis
- Department of Materials Science, University of Patras, GR-26504 Patras, Greece.
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Wu D, Du Q, Wu X, Shi R, Sai L, Liang X, Huang X, Zhao J. Evolution of atomic structures of SnN, SnN−, and SnNCl− clusters (N = 4–20): Insight from ab initio calculations. J Chem Phys 2019; 150:174304. [DOI: 10.1063/1.5095437] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Affiliation(s)
- Di Wu
- Key Laboratory of Materials Modification By Laser, Ion and Electron Beams (Dalian University of Technology), Ministry of Education, Dalian 116024, China
- School of Science, Shenyang Aerospace University, Shenyang 110136, China
| | - Qiuying Du
- Key Laboratory of Materials Modification By Laser, Ion and Electron Beams (Dalian University of Technology), Ministry of Education, Dalian 116024, China
| | - Xue Wu
- Key Laboratory of Materials Modification By Laser, Ion and Electron Beams (Dalian University of Technology), Ministry of Education, Dalian 116024, China
| | - Ruili Shi
- Key Laboratory of Materials Modification By Laser, Ion and Electron Beams (Dalian University of Technology), Ministry of Education, Dalian 116024, China
| | - Linwei Sai
- Department of Mathematics and Physics, Hohai University, Changzhou 213022, China
| | - Xiaoqing Liang
- Key Laboratory of Materials Modification By Laser, Ion and Electron Beams (Dalian University of Technology), Ministry of Education, Dalian 116024, China
| | - Xiaoming Huang
- School of Ocean Science and Technology, Dalian University of Technology, Panjin 124221, China
| | - Jijun Zhao
- Key Laboratory of Materials Modification By Laser, Ion and Electron Beams (Dalian University of Technology), Ministry of Education, Dalian 116024, China
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Atomic Structures and Electronic Properties of Large-Sized GeN Clusters (N = 45, 50, 55, 60, 65, 70) by First-Principles Global Search. J CLUST SCI 2019. [DOI: 10.1007/s10876-019-01498-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Wu X, Lu SJ, Liang X, Huang X, Qin Y, Chen M, Zhao J, Xu HG, King RB, Zheng W. Structures and electronic properties of B3Sin− (n = 4–10) clusters: A combined ab initio and experimental study. J Chem Phys 2017; 146:044306. [DOI: 10.1063/1.4974337] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Xue Wu
- Key Laboratory of Materials Modification by Laser, Ion and Electron Beams (Dalian University of Technology), Ministry of Education, Dalian 116024, China
| | - Sheng-Jie Lu
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Xiaoqing Liang
- Key Laboratory of Materials Modification by Laser, Ion and Electron Beams (Dalian University of Technology), Ministry of Education, Dalian 116024, China
| | - Xiaoming Huang
- School of Ocean Science and Technology, Dalian University of Technology, Panjin Campus, Panjin 124221, China
| | - Ying Qin
- Key Laboratory of Materials Modification by Laser, Ion and Electron Beams (Dalian University of Technology), Ministry of Education, Dalian 116024, China
| | - Maodu Chen
- Key Laboratory of Materials Modification by Laser, Ion and Electron Beams (Dalian University of Technology), Ministry of Education, Dalian 116024, China
| | - Jijun Zhao
- Key Laboratory of Materials Modification by Laser, Ion and Electron Beams (Dalian University of Technology), Ministry of Education, Dalian 116024, China
| | - Hong-Guang Xu
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - R. Bruce King
- Department of Chemistry and Center for Computational Chemistry, University of Georgia, Athens, Georgia 30602, USA
| | - Weijun Zheng
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
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Zhao J, Shi R, Sai L, Huang X, Su Y. Comprehensive genetic algorithm forab initioglobal optimisation of clusters. MOLECULAR SIMULATION 2016. [DOI: 10.1080/08927022.2015.1121386] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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