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Pinheiro Araújo T, Giannakakis G, Morales-Vidal J, Agrachev M, Ruiz-Bernal Z, Preikschas P, Zou T, Krumeich F, Willi PO, Stark WJ, Grass RN, Jeschke G, Mitchell S, López N, Pérez-Ramírez J. Low-nuclearity CuZn ensembles on ZnZrO x catalyze methanol synthesis from CO 2. Nat Commun 2024; 15:3101. [PMID: 38600146 PMCID: PMC11006684 DOI: 10.1038/s41467-024-47447-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Accepted: 03/27/2024] [Indexed: 04/12/2024] Open
Abstract
Metal promotion could unlock high performance in zinc-zirconium catalysts, ZnZrOx, for CO2 hydrogenation to methanol. Still, with most efforts devoted to costly palladium, the optimal metal choice and necessary atomic-level architecture remain unclear. Herein, we investigate the promotion of ZnZrOx catalysts with small amounts (0.5 mol%) of diverse hydrogenation metals (Re, Co, Au, Ni, Rh, Ag, Ir, Ru, Pt, Pd, and Cu) prepared via a standardized flame spray pyrolysis approach. Cu emerges as the most effective promoter, doubling methanol productivity. Operando X-ray absorption, infrared, and electron paramagnetic resonance spectroscopic analyses and density functional theory simulations reveal that Cu0 species form Zn-rich low-nuclearity CuZn clusters on the ZrO2 surface during reaction, which correlates with the generation of oxygen vacancies in their vicinity. Mechanistic studies demonstrate that this catalytic ensemble promotes the rapid hydrogenation of intermediate formate into methanol while effectively suppressing CO production, showcasing the potential of low-nuclearity metal ensembles in CO2-based methanol synthesis.
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Affiliation(s)
- Thaylan Pinheiro Araújo
- Institute of Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093, Zurich, Switzerland
| | - Georgios Giannakakis
- Institute of Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093, Zurich, Switzerland
| | - Jordi Morales-Vidal
- Institute of Chemical Research of Catalonia (ICIQ-CERCA), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain
| | - Mikhail Agrachev
- Laboratory of Physical Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 2, 8093, Zurich, Switzerland
| | - Zaira Ruiz-Bernal
- Department of Inorganic Chemistry and Materials Institute (IUMA), Faculty of Sciences, University of Alicante, Ap. 99, E-03080, Alicante, Spain
| | - Phil Preikschas
- Institute of Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093, Zurich, Switzerland
| | - Tangsheng Zou
- Institute of Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093, Zurich, Switzerland
| | - Frank Krumeich
- Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093, Zurich, Switzerland
| | - Patrik O Willi
- Institute of Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093, Zurich, Switzerland
| | - Wendelin J Stark
- Institute of Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093, Zurich, Switzerland
| | - Robert N Grass
- Institute of Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093, Zurich, Switzerland
| | - Gunnar Jeschke
- Laboratory of Physical Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 2, 8093, Zurich, Switzerland
| | - Sharon Mitchell
- Institute of Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093, Zurich, Switzerland
| | - Núria López
- Institute of Chemical Research of Catalonia (ICIQ-CERCA), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain
| | - Javier Pérez-Ramírez
- Institute of Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093, Zurich, Switzerland.
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2
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Wang X, Cui H, Chen Z, Wang L, Chen J, Yi M, Xiao G, Zhang J, Chen H, Xu C. MC design and FIB preparation of a YSZ biochemical material microstructure. J Mech Behav Biomed Mater 2023; 147:106152. [PMID: 37776762 DOI: 10.1016/j.jmbbm.2023.106152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 09/22/2023] [Accepted: 09/25/2023] [Indexed: 10/02/2023]
Abstract
Aiming at the difficulty of traditional machining of Y2O3-ZrO2 (YSZ) inert ceramic materials, a different method using focused ion beam to selectively create nanoscale microscale structures on the surface of materials was proposed. The sputtering yield, surface damage, and the energy loss of YSZ materials was investigated using the SRIM software using the Monte Carlo method. It is shown that the sputtering yield increases with ion energy in the range 0-30 keV, reaching a maximum of 9.4 atoms/ion at 30 keV. At an ion beam voltage of 30 keV, the most severe damage to the material is 8 mm on the surface. At the same time, the main forms of energy loss in the treatment are phonon energy loss and ionization energy loss, of which phonon energy loss due to the recoil atoms is the largest. In addition, we continue to perform focused ion beam processing experiments on YSZ materials, combining previous MC modeling to optimize different operating conditions such as ion beam, voltage and processing mode. The optimized processing parameters are 30 keV and 2.5 nA. It is shown that the quality of the deep grooves gradually improves with decreasing ion beam current at the same ion beam voltage. However, an excessively small ion beam current leads to an excessively large depth of the deep grooves and lengthy processing times.
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Affiliation(s)
- Xintian Wang
- School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China
| | - Hao Cui
- School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China
| | - Zhaoqiang Chen
- School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China; Shandong Machinery Design and Research Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250031, China; Key Laboratory of Advanced Manufacturing and Measurement and Control, Technology for Light Industry in Universities of Shandong, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China.
| | - Li Wang
- School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China; Key Laboratory of Advanced Manufacturing and Measurement and Control, Technology for Light Industry in Universities of Shandong, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China
| | - Jun Chen
- School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China; Key Laboratory of Advanced Manufacturing and Measurement and Control, Technology for Light Industry in Universities of Shandong, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China
| | - Mingdong Yi
- School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China; Key Laboratory of Advanced Manufacturing and Measurement and Control, Technology for Light Industry in Universities of Shandong, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China
| | - Guangchun Xiao
- School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China; Shandong Machinery Design and Research Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250031, China; Key Laboratory of Advanced Manufacturing and Measurement and Control, Technology for Light Industry in Universities of Shandong, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China
| | - Jingjie Zhang
- School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China; Key Laboratory of Advanced Manufacturing and Measurement and Control, Technology for Light Industry in Universities of Shandong, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China
| | - Hui Chen
- School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China; Key Laboratory of Advanced Manufacturing and Measurement and Control, Technology for Light Industry in Universities of Shandong, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China
| | - Chonghai Xu
- School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China; Shandong Machinery Design and Research Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250031, China; Key Laboratory of Advanced Manufacturing and Measurement and Control, Technology for Light Industry in Universities of Shandong, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China
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3
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Mbae JK, Muthui ZW. Doping induced phase stabilization and electronic properties of alkaline earth metal doped zirconium (IV) oxide: A first principles study. Heliyon 2023; 9:e20998. [PMID: 37876481 PMCID: PMC10590934 DOI: 10.1016/j.heliyon.2023.e20998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 10/12/2023] [Accepted: 10/12/2023] [Indexed: 10/26/2023] Open
Abstract
The role of divalent dopant cations such as Ca and Mg in phase stabilization of ZrO2 has been demonstrated experimentally, with Mg emerging as a crucial dopant ion because of its ability to enhance the photocatalytic properties of ZrO2. To provide a theoretical basis for these experimental observations, the modifications of the crystal and electronic structure of the monoclinic phase of zirconia, m-ZrO2, upon doping with Mg have been studied at the atomic level using Density Functional Theory method. Additionally, the effect of dopant ionic radius on the electronic properties has been demonstrated by doping with Ca, which is isoelectronic with Mg. On 6.25 % doping, a structural distortion of the monoclinic crystal structure towards a tetragonal structure is observed. Additionally, the Density of States of doped m-ZrO2 exhibits the characteristics of t-ZrO2 in the Zr d orbitals in the unoccupied states and O unoccupied states emerge upon creation of an O vacancy in Mg/Ca doped m-ZrO2. The calculated band gap of m-ZrO2 is 3.6 eV. Upon doping there is a shift of the Fermi energy towards the valence band maximum.
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Control of monomeric Vo's versus Vo clusters in ZrO 2-x for solar-light H 2 production from H 2O at high-yield (millimoles gr -1 h -1). Sci Rep 2022; 12:15132. [PMID: 36071088 PMCID: PMC9452565 DOI: 10.1038/s41598-022-19382-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 08/29/2022] [Indexed: 11/08/2022] Open
Abstract
Pristine zirconia, ZrO2, possesses high premise as photocatalyst due to its conduction band energy edge. However, its high energy-gap is prohibitive for photoactivation by solar-light. Currently, it is unclear how solar-active zirconia can be designed to meet the requirements for high photocatalytic performance. Moreover, transferring this design to an industrial-scale process is a forward-looking route. Herein, we have developed a novel Flame Spray Pyrolysis process for generating solar-light active nano-ZrO2−x via engineering of lattice vacancies, Vo. Using solar photons, our optimal nano-ZrO2−x can achieve milestone H2-production yield, > 2400 μmolg−1 h−1 (closest thus, so far, to high photocatalytic water splitting performance benchmarks). Visible light can be also exploited by nano-ZrO2−x at a high yield via a two-photon process. Control of monomeric Vo versus clusters of Vo’s is the key parameter toward Highly-Performing-Photocatalytic ZrO2−x. Thus, the reusable and sustainable ZrO2−x catalyst achieves so far unattainable solar activated photocatalysis, under large scale production.
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5
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Borlido P, Marques MAL, Botti S. Bishop's hat silicene: a planar square silicon bilayer decorated with adatoms. Phys Chem Chem Phys 2021; 23:16942-16947. [PMID: 34338249 DOI: 10.1039/d1cp01316e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We investigate a family of free-standing quasi-two-dimensional silicon structures based on a planar square bilayer with adatom decorations. When attached to the bilayer, these adatoms form local reconstructions which resemble either a bishop's hat or elongated square bipyramids. We systematically constructed members of this family via exhaustive enumeration and then studied them using tight-binding and density-functional theory. We find that this geometry contributes significantly to the stability of the resulting structures, with some squared bilayers energetically more stable than the honeycomb bilayers. The most interesting phases were then characterized in more detail, and they all turned out metallic. Finally, we propose the [100] surface of ZrO2 as the most suitable substrate for the synthesis of these two-dimensional phases.
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Affiliation(s)
- Pedro Borlido
- Institut für Festkörpertheorie und -optik, Friedrich-Schiller-Universität Jena and European Theoretical Spectroscopy Facility, Max-Wien-Platz 1, 07743 Jena, Germany.
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6
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Hutama AS, Marlina LA, Chou CP, Irle S, Hofer TS. Development of Density-Functional Tight-Binding Parameters for the Molecular Dynamics Simulation of Zirconia, Yttria, and Yttria-Stabilized Zirconia. ACS OMEGA 2021; 6:20530-20548. [PMID: 34395999 PMCID: PMC8359130 DOI: 10.1021/acsomega.1c02411] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 07/15/2021] [Indexed: 06/13/2023]
Abstract
In this work, a set of density-functional tight-binding (DFTB) parameters for the Zr-Zr, Zr-O, Y-Y, Y-O, and Zr-Y interactions was developed for bulk and surface simulations of ZrO2 (zirconia), Y2O3 (yttria), and yttria-stabilized zirconia (YSZ) materials. The parameterization lays the ground work for realistic simulations of zirconia-, yttria-, and YSZ-based electrolytes in solid oxide fuel cells and YSZ-based catalysts on long timescales and relevant size scales. The parameterization was validated for the zirconia and yttria polymorphs observed under standard conditions based on density functional theory calculations and experimental data. Additionally, we performed DFTB-based molecular dynamics (MD) simulations to compute structural and vibrational properties of these materials. The results show that the parameters can give a qualitatively correct phase ordering of zirconia, where the tetragonal phase is more stable than the cubic phase at a lower temperature. The lattice parameters are only slightly overestimated by 0.05-0.1 Å (2% error), still within the typical accuracy of first-principles methods. Additionally, the MD results confirm that zirconia and yttria phases are stable against transformations under standard conditions. The parameterization also predicts that vibrational spectra are within the range of 100-1000 cm-1 for zirconia and 100-800 cm-1 for yttria, which is in good agreement with predictions both from full quantum mechanics and a recently developed classical force field. To further demonstrate the advantage of the developed DFTB parameters in terms of computational resources, we conducted DFTB/MD simulations of the YSZ4 and YS12 models containing approximately 750 atoms.
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Affiliation(s)
- Aulia Sukma Hutama
- Department
of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia
| | - Lala Adetia Marlina
- Department
of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia
| | - Chien-Pin Chou
- Department
of Applied Chemistry, National Chiao Tung
University, Hsinchu 30010, Taiwan
| | - Stephan Irle
- Computational
Sciences and Engineering Division & Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States
| | - Thomas S. Hofer
- Theoretical
Chemistry Division, Institute of General, Inorganic and Theoretical
Chemistry, Center for Chemistry and Biomedicine, University of Innsbruck, Innsbruck A-6020, Austria
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7
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Delarmelina M, Quesne MG, Catlow CRA. Modelling the bulk properties of ambient pressure polymorphs of zirconia. Phys Chem Chem Phys 2020; 22:6660-6676. [PMID: 32159203 DOI: 10.1039/d0cp00032a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report a detailed survey of the calculated bulk properties of zirconia using GGA and meta-GGA functionals (PBE, PBEsol, RPBE, and TPSS), dispersion (Grimme's D2 and D3 approach), and on-site Coulomb repulsion correction (U = 2-8 eV). Structural, elastic, mechanical, and dielectric properties, as well as energetics, electronic structure, and phonon dispersion curves were computed and compared to previous investigations to identify the best DFT approach for a consistent in silico description of zirconia polymorphs. In general, inclusion of dispersion corrections led to only small changes in the calculated properties, whereas DFT+U (U = 2 or 4 eV) reduced the deviations of calculated properties from the experimental results, although deterioration of the structure and relative stabilities may be observed in some cases. Standard PBEsol, RPBE+U, and PBE+U were the best methodologies for a simultaneous description of the three polymorphs of ZrO2. RPBE+U, however, was the only functional to conserve the distinct structures and stabilities of c-, t-, and m-ZrO2 when U = 4 eV was used, resulting in the best in silico replication of the band gaps of ZrO2, whilst outperforming the other methodologies in the description of elastic, mechanical, and dielectric properties of this material. Overall, these results provide insight into the most appropriate DFT methodology for in silico investigations of ZrO2, and show that simultaneous description of all three ambient pressure zirconia polymorphs by DFT techniques with acceptable levels of accuracy can be achieved only when the correct choice of methodology is applied.
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Affiliation(s)
- Maicon Delarmelina
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, UK. and UK Catalysis Hub, Research Complex at Harwell, STFC Rutherford Appleton Laboratory, Didcot, Oxfordshire OX11 0FA, UK
| | - Matthew G Quesne
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, UK. and UK Catalysis Hub, Research Complex at Harwell, STFC Rutherford Appleton Laboratory, Didcot, Oxfordshire OX11 0FA, UK
| | - C Richard A Catlow
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, UK. and UK Catalysis Hub, Research Complex at Harwell, STFC Rutherford Appleton Laboratory, Didcot, Oxfordshire OX11 0FA, UK
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8
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Di Tommaso S, Giannici F, Mossuto Marculescu A, Chiara A, Tealdi C, Martorana A, Labat F, Adamo C. Theoretical insights into inorganic-organic intercalation products of the layered perovskite HLaNb 2O 7: perspectives for hybrid proton conductors. Phys Chem Chem Phys 2019; 21:16647-16657. [PMID: 31317145 DOI: 10.1039/c9cp02043h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The modification of metal oxide surfaces with organic moieties has been widely studied as a method of preparing organic-inorganic hybrid materials for various applications. Among the inorganic oxides, ion-exchangeable layered perovskites are particularly interesting, because of their appealing electronic and reactive properties. In particular, their protonated interlayer surface can be easily functionalized with organic groups allowing the production of stable hybrid materials. As a further step in the design of new inorganic-organic hybrid proton conductors, a combined experimental and theoretical study of two intercalated compounds (propanol and imidazole) in HLaNb2O7 is presented here. A generally very good agreement with the available experimental data is found in reproducing both structural features and 13C-NMR chemical shifts, and marked differences between the two considered intercalated compounds are evidenced, with possible important outcomes for proton conduction. Notably, the free imidazole molecules are easily protonated by the acidic protons present in the interlayer spacing, thus inhibiting an efficient charge transport mechanism. In order to overcome this problem, a model system has been considered, where the imidazoles are bound to the end of a butyl chain, the whole being intercalated between two perovskite layers. The obtained theoretical data suggest that, in such a system, proton transfer between two adjacent imidazoles is a barrierless process. These results could then open new perspectives for such hybrid proton conductors.
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Affiliation(s)
- Stefania Di Tommaso
- Dipartimento di Fisica e Chimica, Università degli Studi di Palermo, Viale delle Scienze ed. 17, I-90128 Palermo, Italy.
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9
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Tolba SA, Allam NK. Computational Design of Novel Hydrogen-Doped, Oxygen-Deficient Monoclinic Zirconia with Excellent Optical Absorption and Electronic Properties. Sci Rep 2019; 9:10159. [PMID: 31308464 PMCID: PMC6629681 DOI: 10.1038/s41598-019-46778-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 07/05/2019] [Indexed: 11/28/2022] Open
Abstract
Monoclinic ZrO2 has recently emerged as a new highly efficient material for the photovoltaic and photocatalytic applications. Herein, first-principles calculations were carried out to understand how Hydrogen doping can affect the electronic structure and optical properties of the material. The effects of Hydrogen interstitial and substitutional doping at different sites and concentrations in m-ZrO2 were examined by an extensive model study to predict the best structure with the optimal properties for use in solar energy conversion devices. Hydrogen interstitials (Hi) in pristine m-ZrO2 were found to lower the formation energy but without useful effects on the electronic or optical properties. Hydrogen mono- and co-occupying oxygen vacancy (Ov) were also investigated. At low concentration of Hydrogen mono-occupying oxygen vacancy (HOv), Hydrogen atoms introduced shallow states below the conduction band minimum (CBM) and increase the dielectric constant, which could be very useful for gate dielectric application. The number and position of such defect states strongly depend on the doping sites and concentration. At high oxygen vacancy concentration, the modeled HOv-Ov structure shows the formation of shallow and localized states that are only 1.1 eV below the CBM with significantly high dielectric constant and extended optical absorption to the infrared region. This strong absorption with the high permittivity and low exciton binding energies make the material an ideal candidate for use in solar energy harvesting devices. Finally, the band edge positions of pristine and doped structures with respect to the redox potentials of water splitting indicated that Hydrogen occupying oxygen vacancies can increase the photocatalytic activity of the material for hydrogen generation due the extremely improved optical absorption and the band gap states.
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Affiliation(s)
- Sarah A Tolba
- Energy Materials Laboratory (EML), School of Sciences and Engineering, The American University in Cairo, New Cairo, 11835, Egypt
| | - Nageh K Allam
- Energy Materials Laboratory (EML), School of Sciences and Engineering, The American University in Cairo, New Cairo, 11835, Egypt.
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10
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Manzorro R, Celín WE, Pérez-Omil JA, Calvino JJ, Trasobares S. Improving the Activity and Stability of YSZ-Supported Gold Powder Catalyst by Means of Ultrathin, Coherent, Ceria Overlayers. Atomic Scale Structural Insights. ACS Catal 2019. [DOI: 10.1021/acscatal.8b04412] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ramón Manzorro
- Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica, Facultad de Ciencias, Universidad de Cádiz, Campus Río San Pedro, Puerto Real, 11510 Cádiz, Spain
| | - William E. Celín
- Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica, Facultad de Ciencias, Universidad de Cádiz, Campus Río San Pedro, Puerto Real, 11510 Cádiz, Spain
| | - José A. Pérez-Omil
- Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica, Facultad de Ciencias, Universidad de Cádiz, Campus Río San Pedro, Puerto Real, 11510 Cádiz, Spain
| | - José J. Calvino
- Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica, Facultad de Ciencias, Universidad de Cádiz, Campus Río San Pedro, Puerto Real, 11510 Cádiz, Spain
| | - Susana Trasobares
- Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica, Facultad de Ciencias, Universidad de Cádiz, Campus Río San Pedro, Puerto Real, 11510 Cádiz, Spain
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11
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Felício-Sousa P, Mucelini J, Zibordi-Besse L, Andriani KF, Seminovski Y, Prati RC, Da Silva JLF. Ab initio insights into the structural, energetic, electronic, and stability properties of mixed CenZr15−nO30 nanoclusters. Phys Chem Chem Phys 2019; 21:26637-26646. [DOI: 10.1039/c9cp04762j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
In this work, we report a DFT investigation combined with Spearman correlation analysis of the energetic, structural and electronic properties of mixed CenZr15−nO30 nanoclusters as a function of the composition (n = 0, 1,…,14, 15).
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Affiliation(s)
| | - Johnatan Mucelini
- São Carlos Institute of Chemistry
- University of São Paulo
- São Carlos
- Brazil
| | | | - Karla F. Andriani
- São Carlos Institute of Chemistry
- University of São Paulo
- São Carlos
- Brazil
| | - Yohanna Seminovski
- Instituto de Tecnología Química
- Universitat Politècnica de València
- 46022 Valencia
- Spain
| | - Ronaldo C. Prati
- Center of Mathematics, Computer Science and Cognition
- Federal University of ABC
- Santo André
- Brazil
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12
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Jonayat ASM, Chen S, van Duin ACT, Janik M. Predicting Monolayer Oxide Stability over Low-Index Surfaces of TiO 2 Polymorphs Using ab Initio Thermodynamics. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:11685-11694. [PMID: 30168723 DOI: 10.1021/acs.langmuir.8b02426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Monolayer metal oxide coatings on metal oxide supports have the possibility of tuning the surface chemical properties of the coated systems. However, the (meta)stability of these structures makes experimental discovery challenging. A computational approach can help to determine properties that make a coating/substrate system stable and evaluate the stability of a variety of combinations. Herein, we use density functional theory (DFT) to study the stability of monolayer transitional metal oxides over different facets of anatase, brookite, and rutile phase of TiO2. We find that coatings that have a stable polymorph matching that of the support, as well as substrates with higher surface energies, are more likely to form monolayer-coated systems. DFT calculations recommend a number of coating/TiO2 surface facet combinations that may be stable. Despite these predictive observations, we did not find a significant correlation between monolayer stability and a single atomic, surface, or structural property of the coating/support metal/metal oxide and coating oxide monolayer stability. More complex predictive relationships need future study.
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13
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Zhang YY, Wang MJ, Chang CR, Xu KZ, Ma HX, Zhao FQ. A DFT study on the enthalpies of thermite reactions and enthalpies of formation of metal composite oxide. Chem Phys 2018. [DOI: 10.1016/j.chemphys.2018.04.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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14
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Wang C, Tharval A, Kitchin JR. A density functional theory parameterised neural network model of zirconia. MOLECULAR SIMULATION 2018. [DOI: 10.1080/08927022.2017.1420185] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Chen Wang
- Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Akshay Tharval
- Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, PA, USA
| | - John R. Kitchin
- Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, PA, USA
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15
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Fraccarollo A, Canti L, Marchese L, Cossi M. Accurate Evaluation of the Dispersion Energy in the Simulation of Gas Adsorption into Porous Zeolites. J Chem Theory Comput 2017; 13:1756-1768. [DOI: 10.1021/acs.jctc.6b01021] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alberto Fraccarollo
- Dipartimento di Scienze e
Innovazione Tecnologica (DISIT), Università del Piemonte Orientale, via T. Michel 11, 15100 Alessandria, Italy
| | - Lorenzo Canti
- Dipartimento di Scienze e
Innovazione Tecnologica (DISIT), Università del Piemonte Orientale, via T. Michel 11, 15100 Alessandria, Italy
| | - Leonardo Marchese
- Dipartimento di Scienze e
Innovazione Tecnologica (DISIT), Università del Piemonte Orientale, via T. Michel 11, 15100 Alessandria, Italy
| | - Maurizio Cossi
- Dipartimento di Scienze e
Innovazione Tecnologica (DISIT), Università del Piemonte Orientale, via T. Michel 11, 15100 Alessandria, Italy
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16
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Viñes F, Lamiel-García O, Chul Ko K, Yong Lee J, Illas F. Systematic study of the effect of HSE functional internal parameters on the electronic structure and band gap of a representative set of metal oxides. J Comput Chem 2017; 38:781-789. [DOI: 10.1002/jcc.24744] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Revised: 12/22/2016] [Accepted: 01/10/2017] [Indexed: 01/13/2023]
Affiliation(s)
- Francesc Viñes
- Departament de Ciència de Materials i Química Física & Institut de Química Teòrica i Computacional (IQTCUB); Universitat de Barcelona; c/Martí i Franquès 1 Barcelona 08028 Spain
| | - Oriol Lamiel-García
- Departament de Ciència de Materials i Química Física & Institut de Química Teòrica i Computacional (IQTCUB); Universitat de Barcelona; c/Martí i Franquès 1 Barcelona 08028 Spain
| | - Kyoung Chul Ko
- Departament de Ciència de Materials i Química Física & Institut de Química Teòrica i Computacional (IQTCUB); Universitat de Barcelona; c/Martí i Franquès 1 Barcelona 08028 Spain
- Department of Chemistry; Sungkyunkwan University; Suwon 16419 Korea
| | - Jin Yong Lee
- Department of Chemistry; Sungkyunkwan University; Suwon 16419 Korea
| | - Francesc Illas
- Departament de Ciència de Materials i Química Física & Institut de Química Teòrica i Computacional (IQTCUB); Universitat de Barcelona; c/Martí i Franquès 1 Barcelona 08028 Spain
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17
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Application of dual descriptor to understand the activity of C u/Z r O 2 catalysts in the water gas shift reaction. J Mol Model 2017; 23:34. [DOI: 10.1007/s00894-016-3183-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 12/06/2016] [Indexed: 10/20/2022]
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18
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Sun H, Cao B, Tian Q, Liu S, Du D, Xue Z, Fu H. A DFT study on the absorption mechanism of vinyl chloride by ionic liquids. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2016.01.026] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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19
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Chen A, Zhou Y, Miao S, Li Y, Shen W. Assembly of monoclinic ZrO2nanorods: formation mechanism and crystal phase control. CrystEngComm 2016. [DOI: 10.1039/c5ce02269j] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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20
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Affiliation(s)
- Shu-Hui Guan
- Collaborative Innovation
Center of Chemistry for Energy Material, Key Laboratory of Computational
Physical Science (Ministry of Education), Shanghai Key Laboratory
of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433, China
| | - Xiao-Jie Zhang
- Collaborative Innovation
Center of Chemistry for Energy Material, Key Laboratory of Computational
Physical Science (Ministry of Education), Shanghai Key Laboratory
of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433, China
| | - Zhi-Pan Liu
- Collaborative Innovation
Center of Chemistry for Energy Material, Key Laboratory of Computational
Physical Science (Ministry of Education), Shanghai Key Laboratory
of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433, China
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21
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Ricca C, Ringuedé A, Cassir M, Adamo C, Labat F. Revealing the properties of the cubic ZrO2 (111) surface by periodic DFT calculations: reducibility and stabilization through doping with aliovalent Y2O3. RSC Adv 2015. [DOI: 10.1039/c4ra15206a] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The reducibility of the clean cubic ZrO2 (111) surface, as well as its stabilization through doping, have been investigated by hybrid DFT calculations within a periodic approach and localized basis sets.
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Affiliation(s)
- Chiara Ricca
- PSL Research University
- Chimie Paristech-CNRS
- Institut de Recherche de Chimie de Paris
- F-75231 Paris Cedex 05
- France
| | - Armelle Ringuedé
- PSL Research University
- Chimie Paristech-CNRS
- Institut de Recherche de Chimie de Paris
- F-75231 Paris Cedex 05
- France
| | - Michel Cassir
- PSL Research University
- Chimie Paristech-CNRS
- Institut de Recherche de Chimie de Paris
- F-75231 Paris Cedex 05
- France
| | - Carlo Adamo
- PSL Research University
- Chimie Paristech-CNRS
- Institut de Recherche de Chimie de Paris
- F-75231 Paris Cedex 05
- France
| | - Frédéric Labat
- PSL Research University
- Chimie Paristech-CNRS
- Institut de Recherche de Chimie de Paris
- F-75231 Paris Cedex 05
- France
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22
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Yang J, Ren J, Guo H, Qin X, Han B, Lin J, Li Z. The growth of Nin clusters and their interaction with cubic, monoclinic, and tetragonal ZrO2 surfaces–a theoretical and experimental study. RSC Adv 2015. [DOI: 10.1039/c5ra07738a] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
The interaction and growth of Ni clusters on three phases of ZrO2 surfaces were investigated through theoretical and experimental methods.
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Affiliation(s)
- Jinzhou Yang
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province
- Taiyuan University of Technology
- Taiyuan 030024
- China
| | - Jun Ren
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province
- Taiyuan University of Technology
- Taiyuan 030024
- China
| | - Hailong Guo
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province
- Taiyuan University of Technology
- Taiyuan 030024
- China
| | - Xiang Qin
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province
- Taiyuan University of Technology
- Taiyuan 030024
- China
| | - Bingying Han
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province
- Taiyuan University of Technology
- Taiyuan 030024
- China
| | - Jianying Lin
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province
- Taiyuan University of Technology
- Taiyuan 030024
- China
| | - Zhong Li
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province
- Taiyuan University of Technology
- Taiyuan 030024
- China
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