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Abdel Aal S, Soliman KA, Shalabi AS. Single-and double transition metal atoms anchored C 2N as a high-activity catalyst for CO oxidation: A first-principles study. J Mol Graph Model 2024; 128:108704. [PMID: 38306789 DOI: 10.1016/j.jmgm.2024.108704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 12/23/2023] [Accepted: 01/08/2024] [Indexed: 02/04/2024]
Abstract
The oxidation of CO has attracted great interest in recent years due to its important role in enhancing the catalyst durability in fuel cells and solving the growing environmental problems caused by CO emissions. Consequently, the catalytic oxidation of CO at double non-noble metal atoms anchored C2N is investigated using density functional theory (DFT) computations. All the screened Ti@C2N and Ti2@C2N are thermodynamically stable based on their binding energy calculations. The electronic characteristics, the natural bond orbital analyses (NBO), Frontier orbital, statistical thermodynamics, projected densities of states (PDOS) characteristics, non-covalent interactions (NCI), and quantum theory of atoms in molecules (QTAIM) descriptors of these systems have been examined to analyze the interaction process. Our comparative study suggested that the newly predicted double-atom catalyst (Ti2@C2N) is highly active for CO oxidation, which is a useful guideline for further development. The calculated static first-order hyperpolarizability (βo) illustrated that the double-atom catalyst under investigation can be considered a potential candidate for non-linear optical behavior and could be used for NLO applications. CO oxidation on Ti2@C2N along the Eley-Rideal (ER) mechanism with a low energy barrier of 0.16 eV, which is smaller than the maximum energy barrier (0.73 eV) of CO oxidation along the Langmuir-Hinshelwood (LH) mechanism. Consequently, the ER mechanism is more favorable both thermodynamically and dynamically. This work can provide useful insights and guidelines for future theoretical and experimental investigations to promote the design and development of highly effective and low-cost non-precious-metal Ti2@C2N nanocatalysts towards CO oxidation at ambient temperature.
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Affiliation(s)
- S Abdel Aal
- Department of Chemistry, Faculty of Science, Benha University, P.O. Box 13518, Benha, Egypt; Department of Chemistry, College of Science, Qassim University, Saudi Arabia.
| | - K A Soliman
- Department of Chemistry, Faculty of Science, Benha University, P.O. Box 13518, Benha, Egypt
| | - A S Shalabi
- Department of Chemistry, Faculty of Science, Benha University, P.O. Box 13518, Benha, Egypt
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El-Mossalamy E, Al-Harby NF, Abdel Aal S, Ali N, El-Desawy M, Elewa MM, El Batouti M. Tenability on schiff base Hydrazone derivatives and Frontier molecular orbital. Heliyon 2024; 10:e24472. [PMID: 38293475 PMCID: PMC10826826 DOI: 10.1016/j.heliyon.2024.e24472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 01/07/2024] [Accepted: 01/09/2024] [Indexed: 02/01/2024] Open
Abstract
Context hydrazine compounds based on 1,3,5-triazine were synthesised and their molecular structures were characterised by elemental analysis, Electronic, IR and 1H NMR spectra. The spectral behaviour of the newly prepared compounds in organic solvents of different polarities was extensively studied and correlated to the molecular structure. In this study, 1,3,5-Triazine derivatives (L1, L6, L7, L8) have been subjected to theoretical studies using the Semi-empirical PM3 quantum chemical method. The physical-chemical properties of some Hydrazone derivatives are determined theoretically. The molecular geometry, the Highest Occupied Molecular Orbital (HOMO) - Lowest Unoccupied Molecular Orbital (LUMO) energy gap, molecular hardness (η), ionisation energy (IE), Electron affinity and total energy were analysed, and applications as biological effects were done.
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Affiliation(s)
- E.H. El-Mossalamy
- Chemistry Department, Faculty of Science, Benha University, Benha, Egypt
| | - Nouf F. Al-Harby
- Department of Chemistry, College of Science, Qassim University, Buraidah 51452, Saudi Arabia
| | - S. Abdel Aal
- Chemistry Department, Faculty of Science, Benha University, Benha, Egypt
- Department of Chemistry, College of Science, Qassim University, Buraidah 51452, Saudi Arabia
| | - N.M. Ali
- Chemistry Department, Faculty of Science, Benha University, Benha, Egypt
| | - M. El-Desawy
- Nuclear Physics Department, Nuclear Research Centre, AEA, 13759 Cairo, Egypt
| | - Mahmoud M. Elewa
- Arab Academy for Science, Technology and Maritime Transport, Alexandria P.O. Box 1029, Egypt
| | - Mervette El Batouti
- Chemistry Department, Faculty of Science, Alexandria University, Alexandria 21526, Egypt
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Abdel Aal S, Awadh D. The effect of central transition metals and electron-donating substituent on the performances of dye/TiO 2 interface for dye-sensitized solar cells applications. J Mol Graph Model 2023; 123:108525. [PMID: 37229869 DOI: 10.1016/j.jmgm.2023.108525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Revised: 05/11/2023] [Accepted: 05/12/2023] [Indexed: 05/27/2023]
Abstract
Density functional theory (DFT) and time-dependent density functional theory (TD-DFT) approaches were applied to explore the effect of central transition metals and the dye/TiO2 interface on dye-sensitized solar cell (DSSC) performance and supply a promising way to estimate and screen possible candidates for DSSC applications. The interaction properties, bonding characteristics, sensitized mechanisms, charge transfer, frontier molecular orbitals, energy gap, partial densities of states (PDOS), non-covalent interactions (NCI), and electronic absorption spectra were examined and analyzed to provide the photovoltaic characteristics of Sc, Cu, and Ti tetrasulfonic acid phthalocyanine sensitizer@TiO2 interface in both gas phase and polar solvent as acetonitrile. The interfacial of TiPc-(SO3H)4 with TiO2, which facilitates the driving force for the electron injection of photosensitizers (ΔGinj), increases the charge separation, open-circuit voltage (Voc), and high light-harvesting efficiency (LHE) values. However, minimize the charge recombination, lifetime of the excited state (τ), regeneration driving force (ΔGreg). Our results reveal that TiPc-(SO3H)4@TiO2 is superior to those of ScPc-(SO3H)4, CuPc-(SO3H)4, TiPc-(SO3H)4 and Pc-(SO3H)4/TiO2, indicating the novel TiPc-(SO3H)4@TiO2 interface could be promising candidates for DSSC photovoltaic devices performance. In addition, the static mean polarizability and first hyperpolarizability of all six dyes elucidated that the TiPc-(SO3H)4@TiO2 interface can be regarded as a potential performer in non-linear optical (NLO) properties. These theoretical identifications may provide novel perspectives and instructions for future experimental researchers to promote the synthesis and application of TiPc-(SO3H)4@TiO2 interfaces to improve the photo-to-current conversion efficiency.
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Affiliation(s)
- S Abdel Aal
- Department of Chemistry, Collage of Science, Qassim University, Buraydah, Kingdom of Saudi Arabia; Department of Chemistry, Faculty of Science, Benha University, P.O.Box 13518, Benha, Egypt.
| | - D Awadh
- Department of Chemistry, Faculty of Science, Benha University, P.O.Box 13518, Benha, Egypt
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Abdel Aal S, Alfuhaidi AK. Enhanced hydrogen storage performance of Li and Co functionalized h-GaN nanosheets: DFT study. J Mol Graph Model 2023; 120:108415. [PMID: 36682105 DOI: 10.1016/j.jmgm.2023.108415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 01/05/2023] [Accepted: 01/13/2023] [Indexed: 01/18/2023]
Abstract
Based on the density functional theory (DFT) computations, we investigated the hydrogen storage performances of alkali metal (Li) and transition metal (Co) decorated the defective GaN nanosheets. Fundamental aspects including the interaction properties, bonding characteristics, adsorption ability, frontier orbital, HOMO-LUMO energy gaps, natural bond orbital (NBO) analysis, projected densities of states (PDOS) and statistical thermodynamic stability have been demonstrated to analyze the interaction properties of H2 molecules. As a theoretical strategy, non-covalent interactions (NCI) and the atoms in molecules (QTAIM) descriptors were performed to depict weak interactions. The LiN-GaN and CoN-GaN systems and the H2 uptake capacity revealed to be 7.78% and 5.55%, respectively. Our results demonstrated that H2 molecules are introduced sequentially on the Li and Co that functionalized both sides of VN-GaN nanosheets yielded the gravimetric densities up to 8.158% (2Co-VN-GaN) that well above the gravimetric DOE achieve. The 2LiN-GaN and 2CoN-GaN are energetically more effective for the H2 adsorption, stable and preferred than pristine GaN nanosheet. Additionally, two binding mechanisms including polarization of the hydrogen molecules and σ orbitals hybridization of H2 molecules have been investigated to explain the interaction of H2 molecules. The hydrogen desorption enthalpy and desorption temperatures of hydrogen molecules, indicating the H2 molecules are easy to desorb from Li and Co decorated defective GaN nanosheets. These results suggest the possibility of an excellent and promising nanostructural material to improve the performance of hydrogen storage for in fuel cells application at ambient temperature.
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Affiliation(s)
- S Abdel Aal
- Department of Chemistry, Faculty of Science, Benha University, P.O.Box, 13518, Benha, Egypt; Department of Chemistry, Collage of Science, Qassim University, Buraydah, Saudi Arabia.
| | - Aziza K Alfuhaidi
- Department of Chemistry, Collage of Science, Qassim University, Buraydah, Saudi Arabia
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Abdel Aal S. Metalloborospherenes as a potential promising high drug-loading capacity for anticancer 5-fluorouracil drug: A DFT mechanistic approach. COMPUT THEOR CHEM 2023. [DOI: 10.1016/j.comptc.2023.114046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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Abdel Aal S. DFT study of the therapeutic potential of borospherene and metalloborospherenes as a new drug-delivery system for the 5-fluorouracil anticancer drug. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Soliman KA, Aal SA. Theoretical investigation of favipiravir antiviral drug based on fullerene and boron nitride nanocages. Diam Relat Mater 2021; 117:108458. [PMID: 34025036 PMCID: PMC8123382 DOI: 10.1016/j.diamond.2021.108458] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 04/22/2021] [Accepted: 05/09/2021] [Indexed: 05/16/2023]
Abstract
Smart implementation of novel advanced nanocarriers such as functionalized C24 and B12N12 nanocages is used supplement for antiviral activity 5-Fluoro-2-hydroxypyrazine-3-carboxamide (Favipiravir; Avigan; T-705), as treatment of COVID-19. The interaction energies of Favipiravir with perfect (B12N12 and C24) and doped (BC23 and CB11N12) nanocages were studied at temperatures equal to 310.15 K and 298.15 K using DFT. Our results have shown that the interaction of the Favipiravir (C[bond, double bond]O group) with BC23 and CB11N12 is more favorable than with the C24 and B12N12 nanocages in the gas and aqueous environments. Additionally, the natural bond orbital, the highest occupied molecular orbital (HOMO), the lowest unoccupied molecular orbital (LUMO), energy gap, chemical reactivity, molecular electrostatic potential, and thermodynamic parameters of the optimized structure have been examined. Furthermore, the UV-Vis and infrared spectroscopy have been evaluated for the investigation of the molecular orbitals Participated in the absorption spectrum of the Favipiravir before and after the interaction with the C24, BC23, B12N12, and CB11N12, sites at maximum wavelength utilizing the time-dependent density functional theory (TD-B3LYP and TD-CAM-B3LYP). The intermolecular interactions have been analyzed by non-covalent interactions (NCI) and also, the electron localization function (ELF) is discussed.
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Affiliation(s)
- Kamal A Soliman
- Department of Chemistry, Faculty of Science, Benha University, P.O. Box 13518, Benha, Egypt
| | - S Abdel Aal
- Department of Chemistry, Faculty of Science, Benha University, P.O. Box 13518, Benha, Egypt
- Department of Chemistry, College of Science, Qassim University, Saudi Arabia
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Shalabi AS, Abdel Halim WS, Abdel Aal S, Soliman KA. Tuning hydrogen storage of carbon nanotubes by mechanical bending: theoretical study. Molecular Simulation 2015. [DOI: 10.1080/08927022.2015.1085122] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Shalabi A, Abdel Aal S, El Mahdy A. The effect of ruthenium on the performance of porphyrin dye and porphyrin–fullerene dyad solar cells predicted by DFT and TD-DFT calculations. Molecular Simulation 2013. [DOI: 10.1080/08927022.2012.758853] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Shalaby S, Swedan N, Abdel Aal S, el-Segeni A, Ammar S, Hessien S, Abdel-Latif M. The forensic pathology of healing under cytotoxicity and analgesia, together with the toxic hepatic, renal and haematological hazards. J Egypt Soc Parasitol 1986; 16:739-56. [PMID: 3782922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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