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Abdelmohsen AH, Rouby WMAE, Ismail N, Farghali AA. Morphology Transition Engineering of ZnO Nanorods to Nanoplatelets Grafted Mo 8O 23-MoO 2 by Polyoxometalates: Mechanism and Possible Applicability to other Oxides. Sci Rep 2017; 7:5946. [PMID: 28725018 PMCID: PMC5517553 DOI: 10.1038/s41598-017-05750-x] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Accepted: 05/17/2017] [Indexed: 11/28/2022] Open
Abstract
A new fundamental mechanism for reliable engineering of zinc oxide (ZnO) nanorods to nanoplatelets grafted Mo8O23-MoO2 mixed oxide with controlled morphology, composition and precise understanding of the nanoscale reaction mechanism was developed. These hybrid nanomaterials are gaining interest due to their potential use for energy, catalysis, biomedical and other applications. As an introductory section, we demonstrate a new expansion for the concept 'materials engineering' by discussing the fabrication of metal oxides nanostructures by bottom-up approach and carbon nanoparticles by top-down approach. Moreover, we propose a detailed mechanism for the novel phenomenon that was experienced by ZnO nanorods when treated with phosphomolybdic acid (PMA) under ultra-sonication stimulus. This approach is expected to be the basis of a competitive fabrication approach to 2D hybrid nanostructures. We will also discuss a proposed mechanism for the catalytic deposition of Mo8O23-MoO2 mixed oxide over ZnO nanoplatelets. A series of selection rules (SRs) which applied to ZnO to experience morphology transition and constitute Abdelmohsen theory for morphology transition engineering (ATMTE) will be demonstrated through the article, besides a brief discussion about possibility of other oxides to obey this theory.
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Affiliation(s)
- Ahmed H Abdelmohsen
- Materials Science and Nanotechnology Department, Faculty of Postgraduate Studies for Advanced Science (PSAS), Beni-Suef University, 62511, Beni-Suef, Egypt.
- Augsburg University, Institute of Physics, Universitätsstrass 1, 86159, Augsburg, Germany.
- Institute of Condensed Matter and Nanosciences (IMCN), Bio- and Soft Matter, Université Catholique de Louvain, Louvain la Neuve, B-1348, Belgium.
| | - Waleed M A El Rouby
- Materials Science and Nanotechnology Department, Faculty of Postgraduate Studies for Advanced Science (PSAS), Beni-Suef University, 62511, Beni-Suef, Egypt.
| | - Nahla Ismail
- Physical Chemistry Department, Centre of Excellence for Advanced Sciences, Renewable Energy Group, National Research Centre, 12311, Dokki, Giza, Egypt
| | - Ahmed A Farghali
- Materials Science and Nanotechnology Department, Faculty of Postgraduate Studies for Advanced Science (PSAS), Beni-Suef University, 62511, Beni-Suef, Egypt
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Liu X, Wang X, Wang Q, Andrews L. OMS, OM(η2-SO), and OM(η2-SO)(η2-SO2) Molecules (M = Ti, Zr, Hf): Infrared Spectra and Density Functional Calculations. Inorg Chem 2012; 51:7415-24. [DOI: 10.1021/ic3008987] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Xing Liu
- Department of Chemistry, Tongji University, Shanghai, 200092, China
| | - Xuefeng Wang
- Department of Chemistry, Tongji University, Shanghai, 200092, China
| | - Qiang Wang
- Department of Chemistry, Tongji University, Shanghai, 200092, China
| | - Lester Andrews
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United
States
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Schlereth TW, Hedhili MN, Yakshinskiy BV, Gouder T, Madey TE. Adsorption and Reaction of SO2 with a Polycrystalline UO2 Film: Promotion of S−O Bond Cleavage by Creation of O-Defects and Na or Ca Coadsorption. J Phys Chem B 2005; 109:20895-905. [PMID: 16853709 DOI: 10.1021/jp0526344] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
To characterize UO(2) for its possible use in desulfurization applications, the interactions of molecular sulfur dioxide (SO(2)) with a polycrystalline uranium dioxide film have been studied by means of X-ray photoelectron spectroscopy (XPS), temperature-programmed desorption (TPD), and low-energy ion scattering (LEIS). The stoichiometric, oxygen-deficient, calcium-precovered and sodium-precovered UO(2) surfaces have been characterized. The changes in oxide reactivity upon creation of oxygen vacancies and coadsorption of sodium and calcium have been studied. After creation of a reduced UO(2-x) surface (x approximately 0.44) via Ar(+) sputtering, the U 4f XPS spectrum shows conspicuous differences that are good indicators of the surface stoichiometry. Molecular SO(x) formation (x = 2-4) is observed after SO(2) deposition onto stoichiometric UO(2) and onto UO(2) precovered with small amounts (<1 ML) of Na or Ca; complete dissociation of SO(2) is not observed. Heating leads to desorption of the SO(x) species and to transformation of SO(2) to SO(3) and SO(3) to SO(4). On oxygen-deficient UO(2) and on UO(2) precovered with large Na or Ca coverages (> or =4 ML), both the formation of SO(x)= species and complete dissociation of SO(2) are observed. A higher thermal stability of the sulfur components is observed on these surfaces. In all cases for which dissociation occurs, the XPS peak of atomic sulfur shows similar structure: three different binding states are observed. The reactivity of oxygen-deficient UO(2) and sodium- and calcium-precovered UO(2) (coverages > or = 4 ML) is attributed to charge transfer into the antibonding LUMO of the adsorbed molecule.
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Affiliation(s)
- T W Schlereth
- Laboratory for Surface Modification, Department of Physics and Astronomy, Rutgers-The State University of New Jersey, Piscataway, NJ 08854, USA
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Rodriguez JA, Jirsak T, González L, Evans J, Pérez M, Maiti A. Reaction of SO2 with pure and metal-doped MgO: Basic principles for the cleavage of S–O bonds. J Chem Phys 2001. [DOI: 10.1063/1.1416683] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Rodriguez JA, Jirsak T, Chaturvedi S, Dvorak J. Chemistry of SO2 and NO2 on ZnO(0001)-Zn and ZnO powders: changes in reactivity with surface structure and composition. ACTA ACUST UNITED AC 2001. [DOI: 10.1016/s1381-1169(00)00489-1] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Rodriguez JA, Dvorak J, Jirsak T. Chemistry of SO2, H2S, and CH3SH on Carbide-Modified Mo(110) and Mo2C Powders: Photoemission and XANES Studies. J Phys Chem B 2000. [DOI: 10.1021/jp002792p] [Citation(s) in RCA: 59] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- José A. Rodriguez
- Department of Chemistry, Brookhaven National Laboratory, Upton, New York 11953
| | - Joseph Dvorak
- Department of Chemistry, Brookhaven National Laboratory, Upton, New York 11953
| | - Tomas Jirsak
- Department of Chemistry, Brookhaven National Laboratory, Upton, New York 11953
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Rodriguez JA, Jirsak T, Dvorak J, Sambasivan S, Fischer D. Reaction of NO2 with Zn and ZnO: Photoemission, XANES, and Density Functional Studies on the Formation of NO3. J Phys Chem B 1999. [DOI: 10.1021/jp993224g] [Citation(s) in RCA: 337] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- José A. Rodriguez
- Departments of Chemistry and National Synchrotron Light Source, Brookhaven National Laboratory, Upton, New York 11973, and Materials Science and Engineering Laboratory, National Institute of Standards and Technology Gaithersburg, Maryland 20899
| | - Tomas Jirsak
- Departments of Chemistry and National Synchrotron Light Source, Brookhaven National Laboratory, Upton, New York 11973, and Materials Science and Engineering Laboratory, National Institute of Standards and Technology Gaithersburg, Maryland 20899
| | - Joseph Dvorak
- Departments of Chemistry and National Synchrotron Light Source, Brookhaven National Laboratory, Upton, New York 11973, and Materials Science and Engineering Laboratory, National Institute of Standards and Technology Gaithersburg, Maryland 20899
| | - Sharadha Sambasivan
- Departments of Chemistry and National Synchrotron Light Source, Brookhaven National Laboratory, Upton, New York 11973, and Materials Science and Engineering Laboratory, National Institute of Standards and Technology Gaithersburg, Maryland 20899
| | - Daniel Fischer
- Departments of Chemistry and National Synchrotron Light Source, Brookhaven National Laboratory, Upton, New York 11973, and Materials Science and Engineering Laboratory, National Institute of Standards and Technology Gaithersburg, Maryland 20899
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Jirsak T, Dvorak J, Rodriguez JA. Chemistry of Thiophene on ZnO, S/ZnO, and Cs/ZnO Surfaces: Effects of Cesium on Desulfurization Processes. J Phys Chem B 1999. [DOI: 10.1021/jp991051p] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tomas Jirsak
- Department of Chemistry, Brookhaven National Laboratory, Upton, New York 11973
| | - Joseph Dvorak
- Department of Chemistry, Brookhaven National Laboratory, Upton, New York 11973
| | - José A. Rodriguez
- Department of Chemistry, Brookhaven National Laboratory, Upton, New York 11973
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Rodriguez JA, Hrbek J. Interaction of Sulfur with Well-Defined Metal and Oxide Surfaces: Unraveling the Mysteries behind Catalyst Poisoning and Desulfurization. Acc Chem Res 1999. [DOI: 10.1021/ar9801191] [Citation(s) in RCA: 237] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- José A. Rodriguez
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973
| | - Jan Hrbek
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973
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