1
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Synthesis of Peroxidase-Like V2O5 Nanoparticles for Dye Removal from Aqueous Solutions. Top Catal 2022. [DOI: 10.1007/s11244-021-01523-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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2
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Johnson ID, Stapleton N, Nolis G, Bauer D, Parajuli P, Yoo HD, Yin L, Ingram BJ, Klie RF, Lapidus S, Darr JA, Cabana J. Control of crystal size tailors the electrochemical performance of α-V 2O 5 as a Mg 2+ intercalation host. NANOSCALE 2021; 13:10081-10091. [PMID: 34052841 DOI: 10.1039/d1nr03080a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
α-V2O5 has been extensively explored as a Mg2+ intercalation host with potential as a battery cathode, offering high theoretical capacities and potentials vs. Mg2+/Mg. However, large voltage hysteresis is observed with Mg insertion and extraction, introducing significant and unacceptable round-trip energy losses with cycling. Conventional interpretations suggest that bulk ion transport of Mg2+ within the cathode particles is the major source of this hysteresis. Herein, we demonstrate that nanosizing α-V2O5 gives a measurable reduction to voltage hysteresis on the first cycle that substantially raises energy efficiency, indicating that mechanical formatting of the α-V2O5 particles contributes to hysteresis. However, no measurable improvement in hysteresis is found in the nanosized α-V2O5 in latter cycles despite the much shorter diffusion lengths, suggesting that other factors aside from Mg transport, such as Mg transfer between the electrolyte and electrode, contribute to this hysteresis. This observation is in sharp contrast to the conventional interpretation of Mg electrochemistry. Therefore, this study uncovers critical fundamental underpinning limiting factors in Mg battery electrochemistry, and constitutes a pivotal step towards a high-voltage, high-capacity electrode material suitable for Mg batteries with high energy density.
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Affiliation(s)
- Ian D Johnson
- Department of Chemistry, University College London, London, UK.
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3
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Pt nanoparticles encapsulated on V2O5 nanosheets carriers as efficient catalysts for promoted aerobic oxidative desulfurization performance. CHINESE JOURNAL OF CATALYSIS 2021. [DOI: 10.1016/s1872-2067(20)63685-3] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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4
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Characterization, microbial and catalytic application of V2O5 nanoparticles prepared from Schiff base complexes as precursor. J CHEM SCI 2020. [DOI: 10.1007/s12039-020-01840-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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5
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Chukanov NV, Vigasina MF. Raman Spectra of Minerals. VIBRATIONAL (INFRARED AND RAMAN) SPECTRA OF MINERALS AND RELATED COMPOUNDS 2020. [DOI: 10.1007/978-3-030-26803-9_4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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6
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Patil HR, Murthy Z. Ionic liquid assisted vanadium pentoxide synthesis through sol-gel method: Catalyst support for broad molecular weight distribution polyethylene synthesis. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2016.07.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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7
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Kaur N, Komal K, Gupta S, Kumar V, Tikoo KB, Singhal S, Goel N. Time-dependent DFT and experimental study on visible light photocatalysis by metal oxides of Ti, V and Zn after complexing with a conjugated polymer. NEW J CHEM 2019. [DOI: 10.1039/c8nj04729d] [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
Tuning the photoactive behavior of transition metal oxide (Ti2O4, V2O5, Zn3O3) cluster units by structural modifications with polythiophene.
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Affiliation(s)
- Navjot Kaur
- Department of Chemistry & Centre of Advanced Studies in Chemistry
- Panjab University
- Chandigarh-160014
- India
| | - Komal Komal
- Department of Chemistry & Centre of Advanced Studies in Chemistry
- Panjab University
- Chandigarh-160014
- India
| | - Shuchi Gupta
- University Institutes of Engineering and Technology
- Panjab University
- Chandigarh
- India
| | - Vinod Kumar
- HR-TEM Facility Lab, National Institute of Pharmaceutical Education and Research (NIPER)
- SAS Nagar-160062
- India
| | - K. B. Tikoo
- HR-TEM Facility Lab, National Institute of Pharmaceutical Education and Research (NIPER)
- SAS Nagar-160062
- India
| | - Sonal Singhal
- Department of Chemistry & Centre of Advanced Studies in Chemistry
- Panjab University
- Chandigarh-160014
- India
| | - Neetu Goel
- Department of Chemistry & Centre of Advanced Studies in Chemistry
- Panjab University
- Chandigarh-160014
- India
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8
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Stinghen D, Atzori M, Fernandes CM, Ribeiro RR, de Sá EL, Back DF, Giese SOK, Hughes DL, Nunes GG, Morra E, Chiesa M, Sessoli R, Soares JF. A Rare Example of Four-Coordinate Nonoxido Vanadium(IV) Alkoxide in the Solid State: Structure, Spectroscopy, and Magnetization Dynamics. Inorg Chem 2018; 57:11393-11403. [PMID: 30160486 DOI: 10.1021/acs.inorgchem.8b01117] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The distorted tetrahedral [V(OAd)4] alkoxide (OAd = 1-adamantoxide, complex 1) is the first homoleptic, mononuclear vanadium(IV) alkoxide to be characterized in the solid state by X-ray diffraction analysis. The compound crystallizes in the cubic P4̅3 n space group with two highly disordered, crystallographically independent molecules in the asymmetric unit. Spin Hamiltonian parameters extracted from low temperature X- and Q-band electron paramagnetic resonance (EPR) experiments performed for polycrystalline samples of 1, both in the concentrated (bulk) form and diluted in the diamagnetic [Ti(OAd)4] analogue, reveal a fully axial system with g z < g x, g y and A z ≫ A x, A y. Complex 1 has also been characterized by alternate current susceptometry with varying temperature (3-30 K) and static magnetic field (up to 8.5 T), showing field-induced slow relaxation of the magnetization with relaxation times ranging from ca. 3 ms at 3 K to 0.02-0.03 ms at 30 K, in line with relevant results described recently for other potential molecular quantum bits. Pulsed EPR measurements, in turn, disclosed long coherence times of ca. 4 μs at temperatures lower than 40 K, despite the presence of the H-rich ligands. The slow spin relaxation in 1 is the first observed for a tetracoordinate nonoxido vanadium(IV) complex, and results are compared here to those generated by square-pyramidal VIV(O)2+ and trigonal prismatic V4+ with oxygen donor atom sets. Considering that the number of promising d1 complexes investigated in detail for slow magnetization dynamics is still small, the present work contributes to the establishment of possible structural/electronic correlations of interest to the field of quantum information processing.
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Affiliation(s)
- Danilo Stinghen
- Departamento de Química , Universidade Federal do Paraná, Centro Politécnico, Jardim das Américas , 81530-900 Curitiba , Paraná , Brazil
| | - Matteo Atzori
- Dipartimento di Chimica "Ugo Schiff" and INSTM RU , Università degli Studi di Firenze , Via della Lastruccia 3 , 50019 Sesto Fiorentino (FI) , Italy
| | - Caprici M Fernandes
- Departamento de Química , Universidade Federal do Paraná, Centro Politécnico, Jardim das Américas , 81530-900 Curitiba , Paraná , Brazil
| | - Ronny R Ribeiro
- Departamento de Química , Universidade Federal do Paraná, Centro Politécnico, Jardim das Américas , 81530-900 Curitiba , Paraná , Brazil
| | - Eduardo L de Sá
- Departamento de Química , Universidade Federal do Paraná, Centro Politécnico, Jardim das Américas , 81530-900 Curitiba , Paraná , Brazil
| | - Davi F Back
- Departamento de Química , Universidade Federal de Santa Maria , Camobi, 97105-900 Santa Maria , Rio Grande do Sul , Brazil
| | - Siddhartha O K Giese
- Departamento de Química , Universidade Federal do Paraná, Centro Politécnico, Jardim das Américas , 81530-900 Curitiba , Paraná , Brazil
| | - David L Hughes
- School of Chemistry , University of East Anglia , Norwich NR4 7TJ , U.K
| | - Giovana G Nunes
- Departamento de Química , Universidade Federal do Paraná, Centro Politécnico, Jardim das Américas , 81530-900 Curitiba , Paraná , Brazil
| | - Elena Morra
- Dipartimento di Chimica e NIS Centre , Università di Torino , Via P. Giuria 7 , I10125 Torino , Italy
| | - Mario Chiesa
- Dipartimento di Chimica e NIS Centre , Università di Torino , Via P. Giuria 7 , I10125 Torino , Italy
| | - Roberta Sessoli
- Dipartimento di Chimica "Ugo Schiff" and INSTM RU , Università degli Studi di Firenze , Via della Lastruccia 3 , 50019 Sesto Fiorentino (FI) , Italy
| | - Jaísa F Soares
- Departamento de Química , Universidade Federal do Paraná, Centro Politécnico, Jardim das Américas , 81530-900 Curitiba , Paraná , Brazil
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9
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Tempas CD, Morris TW, Wisman DL, Le D, Din NU, Williams CG, Wang M, Polezhaev AV, Rahman TS, Caulton KG, Tait SL. Redox-active ligand controlled selectivity of vanadium oxidation on Au(100). Chem Sci 2018; 9:1674-1685. [PMID: 29675215 PMCID: PMC5887816 DOI: 10.1039/c7sc04752e] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Accepted: 01/02/2018] [Indexed: 11/21/2022] Open
Abstract
Metal-organic coordination networks at surfaces, formed by on-surface redox assembly, are of interest for designing specific and selective chemical function at surfaces for heterogeneous catalysts and other applications. The chemical reactivity of single-site transition metals in on-surface coordination networks, which is essential to these applications, has not previously been fully characterized. Here, we demonstrate with a surface-supported, single-site V system that not only are these sites active toward dioxygen activation, but the products of that reaction show much higher selectivity than traditional vanadium nanoparticles, leading to only one V-oxo product. We have studied the chemical reactivity of one-dimensional metal-organic vanadium - 3,6-di(2-pyridyl)-1,2,4,5-tetrazine (DPTZ) chains with O2. The electron-rich chains self-assemble through an on-surface redox process on the Au(100) surface and are characterized by X-ray photoelectron spectroscopy, scanning tunneling microscopy, high-resolution electron energy loss spectroscopy, and density functional theory. Reaction of V-DPTZ chains with O2 causes an increase in V oxidation state from VII to VIV, resulting in a single strongly bonded (DPTZ2-)VIVO product and spillover of O to the Au surface. DFT calculations confirm these products and also suggest new candidate intermediate states, providing mechanistic insight into this on-surface reaction. In contrast, the oxidation of ligand-free V is less complete and results in multiple oxygen-bound products. This demonstrates the high chemical selectivity of single-site metal centers in metal-ligand complexes at surfaces compared to metal nanoislands.
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Affiliation(s)
| | - Tobias W Morris
- Department of Chemistry , Indiana University , Bloomington , IN 47401 , USA . ;
| | - David L Wisman
- Department of Chemistry , Indiana University , Bloomington , IN 47401 , USA . ;
- NAVSEA Crane , Crane , IN 47522 , USA
| | - Duy Le
- Department of Physics , University of Central Florida , Orlando , FL , USA .
| | - Naseem U Din
- Department of Physics , University of Central Florida , Orlando , FL , USA .
| | | | - Miao Wang
- Department of Physics , Indiana University , Bloomington , IN 47401 , USA
| | | | - Talat S Rahman
- Department of Physics , University of Central Florida , Orlando , FL , USA .
- Donostia International Physics Center (DIPC) , 20018 San Sebastian , Spain
| | - Kenneth G Caulton
- Department of Chemistry , Indiana University , Bloomington , IN 47401 , USA . ;
| | - Steven L Tait
- Department of Chemistry , Indiana University , Bloomington , IN 47401 , USA . ;
- Department of Physics , Indiana University , Bloomington , IN 47401 , USA
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10
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Yim T, Kwon MS, Mun J, Lee KT. Room Temperature Ionic Liquid-based Electrolytes as an Alternative to Carbonate-based Electrolytes. Isr J Chem 2015. [DOI: 10.1002/ijch.201400181] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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11
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A new metallate phase of V2O5 crystalline microstructure achieved in a facile route: synthesis, characterization, and measurement in catalytic reactions. J Colloid Interface Sci 2015; 438:122-129. [PMID: 25454434 DOI: 10.1016/j.jcis.2014.09.032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2014] [Revised: 09/07/2014] [Accepted: 09/14/2014] [Indexed: 11/20/2022]
Abstract
Experiencing a series of complicated changes, abundant orange crystals of novel metallic phase of vanadium pentoxide were obtained by a mild chemical method, the formula of which is defined as [V3(μ3-O)2⋅(μ1-OH)⋅O5]⋅H2O. Differ from the synthesis methods of vanadium oxide published, we have adopted a simple solution method that mixed starting materials are refluxing in the system of ethanol-water under a relatively lower temperature. Symmetry of the crystals is Monoclinic, with cell unit dimensions: a=4.9978(10)Å, b=8.4273(17)Å, c=7.8669(16)Å, β=96.44(3)° and space group of P2₁/m. The structure of the complex was characterized by elemental analysis, IR, UV-vis spectroscopy and single-crystal diffraction analysis. Powder X-ray diffraction (PXRD) was used to detect the purity of the crystals, and crystal morphology was detected by the scanning electron microscope (SEM). In addition, in order to extend application of oxidovanadium complexes, bromination catalytic activity about the complex in a single-pot reaction of the conversion of phenol red to bromophenol blue in a mixed solution of H2O-DMF at a constant temperature of 30±0.5 °C with a buffer solution of NaH2PO4Na2HPO4 (pH=5.8) was evaluated firstly, indicating that the complex can be considered as a potential functional model of bromoperoxidase, in the meantime, we have conducted the bromination catalytic reaction to simulate and measure the changes in reaction process indirectly. Besides, catalytic oxidation activity of the complex is also evaluated in the oxidation of cyclohexane (Cy) and cyclopentane with hydrogen peroxide promoted under mild conditions, showing potential catalytic activity of the complex by comparing TON (total turnover number) ratios of CyO/CyOH (CyO is the abbreviation of cyclohexanone and CyOH represents cyclohexanol) in the oxidation results.
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12
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Guo T, Yao MS, Lin YH, Nan CW. A comprehensive review on synthesis methods for transition-metal oxide nanostructures. CrystEngComm 2015. [DOI: 10.1039/c5ce00034c] [Citation(s) in RCA: 191] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Recent developments of transition-metal oxide nanostructures with designed shape and dimensionality, including various synthesis methods and applications, are presented.
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Affiliation(s)
- Ting Guo
- State Key Lab of New Ceramics and Fine Processing
- School of Materials Science and Engineering
- Tsinghua University
- Beijing 100084, PR China
| | - Ming-Shui Yao
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou, PR China
| | - Yuan-Hua Lin
- State Key Lab of New Ceramics and Fine Processing
- School of Materials Science and Engineering
- Tsinghua University
- Beijing 100084, PR China
| | - Ce-Wen Nan
- State Key Lab of New Ceramics and Fine Processing
- School of Materials Science and Engineering
- Tsinghua University
- Beijing 100084, PR China
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13
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QCM-D studies of polypyrrole influence on structure stabilization of β phase of Ni(OH)2 nanoparticles during electrochemical cycling. Electrochem commun 2014. [DOI: 10.1016/j.elecom.2014.09.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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14
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Spanakis E, Pervolaraki M, Giapintzakis J, Katsarakis N, Koudoumas E, Vernardou D. Effect of gold and silver nanoislands on the electrochemical properties of carbon nanofoam. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.07.222] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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15
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Martins VL, Nicolau BG, Urahata SM, Ribeiro MCC, Torresi RM. Influence of the Water Content on the Structure and Physicochemical Properties of an Ionic Liquid and Its Li+ Mixture. J Phys Chem B 2013; 117:8782-92. [DOI: 10.1021/jp312839z] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Vitor L. Martins
- Instituto
de Quı́mica and ‡Instituto de Fı́sica, Universidade de São Paulo (USP), CP 26077, 05513-970
São Paulo-SP, Brazil
| | - Bruno G. Nicolau
- Instituto
de Quı́mica and ‡Instituto de Fı́sica, Universidade de São Paulo (USP), CP 26077, 05513-970
São Paulo-SP, Brazil
| | - Sérgio M. Urahata
- Instituto
de Quı́mica and ‡Instituto de Fı́sica, Universidade de São Paulo (USP), CP 26077, 05513-970
São Paulo-SP, Brazil
| | - Mauro C. C. Ribeiro
- Instituto
de Quı́mica and ‡Instituto de Fı́sica, Universidade de São Paulo (USP), CP 26077, 05513-970
São Paulo-SP, Brazil
| | - Roberto M. Torresi
- Instituto
de Quı́mica and ‡Instituto de Fı́sica, Universidade de São Paulo (USP), CP 26077, 05513-970
São Paulo-SP, Brazil
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16
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Popuri SR, Miclau M, Artemenko A, Labrugere C, Villesuzanne A, Pollet M. Rapid hydrothermal synthesis of VO2 (B) and its conversion to thermochromic VO2 (M1). Inorg Chem 2013; 52:4780-5. [PMID: 23581429 DOI: 10.1021/ic301201k] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The present study provides a rapid way to obtain VO2 (B) under economical and environmentally friendly conditions. VO2 (B) is one of the well-known polymorphs of vanadium dioxide and is a promising cathode material for aqueous lithium ion batteries. VO2 (B) was successfully synthesized by rapid single-step hydrothermal process using V2O5 and citric acid as precursors. The present study shows that phase-pure VO2 (B) polytype can be easily obtained at 180 °C for 2 h and 220 °C for 1 h, that is, the lowest combination of temperature and duration reported so far. The obtained VO2 (B) is characterized by X-ray powder diffraction, high-resolution scanning electron microscopy, and Fourier transform infrared spectroscopy. In addition, we present an indirect way to obtain VO2 (M1) by annealing VO2 (B) under vacuum for 1 h.
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Affiliation(s)
- Srinivasa Rao Popuri
- Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB), Centre National de la Recherche Scientifique (CNRS), UPR 9048, F-33600 Pessac, France
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17
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Synthesis and characterization of belt-like VO2(B)@carbon and V2O3@carbon core–shell structured composites. Colloids Surf A Physicochem Eng Asp 2012. [DOI: 10.1016/j.colsurfa.2011.12.058] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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18
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Qiu G, Dharmarathna S, Genuino H, Zhang Y, Huang H, Suib SL. Facile Microwave-Refluxing Synthesis and Catalytic Properties of Vanadium Pentoxide Nanomaterials. ACS Catal 2011. [DOI: 10.1021/cs200437x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Guohong Qiu
- Key Laboratory of Subtropical Agricultural Resources and Environment, Ministry of Agriculture, College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, P.R. China
- Department of Chemistry, University of Connecticut, 55 North Eagleville Road, Storrs, Connecticut, 06269-3060, United States
| | - Saminda Dharmarathna
- Department of Chemistry, University of Connecticut, 55 North Eagleville Road, Storrs, Connecticut, 06269-3060, United States
| | - Homer Genuino
- Department of Chemistry, University of Connecticut, 55 North Eagleville Road, Storrs, Connecticut, 06269-3060, United States
| | - Yashan Zhang
- Department of Chemistry, University of Connecticut, 55 North Eagleville Road, Storrs, Connecticut, 06269-3060, United States
| | - Hui Huang
- Department of Chemistry, University of Connecticut, 55 North Eagleville Road, Storrs, Connecticut, 06269-3060, United States
| | - Steven L. Suib
- Department of Chemistry, University of Connecticut, 55 North Eagleville Road, Storrs, Connecticut, 06269-3060, United States
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19
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Nanostructured VOx/VO(PO4)n Using Solid-State Vanadium Containing Phosphazene Precursors: A Useful Potential Bi-Catalyst System. J CLUST SCI 2011. [DOI: 10.1007/s10876-011-0415-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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20
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Butler IS, Beattie JK. Surface-Enhanced Raman Scattering of the Bariandite Oxide Layer on a Vanadium Dioxide Crystal. Aust J Chem 2011. [DOI: 10.1071/ch11180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Variable-temperature (25–100°C) Raman spectra of a crystal of commercial VO2 have revealed surface-enhanced Raman scattering (SERS) of the V=O stretching mode of the bariandite-like vanadium oxide species, V10O24·9H2O, that is formed on the surface of the crystal. Upon passing through the semiconductor-to-metal phase transition of VO2 at 68°C, there is an approximately three to five-fold increase in Raman intensity of the V=O stretching mode. This effect is reversible with hysteresis upon decreasing the temperature. The temperature dependence of the Raman spectra at temperatures below the transition suggest that even the semiconductor phase has some SERS effect.
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Stability Criteria of Fullerene-like Nanoparticles: Comparing V₂O 5 to Layered Metal Dichalcogenides and Dihalides. MATERIALS 2010; 3:4428-4445. [PMID: 28883335 PMCID: PMC5445837 DOI: 10.3390/ma3084428] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2010] [Revised: 07/21/2010] [Accepted: 08/09/2010] [Indexed: 11/16/2022]
Abstract
Numerous examples of closed-cage nanostructures, such as nested fullerene-like nanoparticles and nanotubes, formed by the folding of materials with layered structure are known. These compounds include WS₂, NiCl₂, CdCl₂, Cs₂O, and recently V₂O₅. Layered materials, whose chemical bonds are highly ionic in character, possess relatively stiff layers, which cannot be evenly folded. Thus, stress-relief generally results in faceted nanostructures seamed by edge-defects. V₂O₅, is a metal oxide compound with a layered structure. The study of the seams in nearly perfect inorganic "fullerene-like" hollow V₂O5 nanoparticles (NIF-V₂O₅) synthesized by pulsed laser ablation (PLA), is discussed in the present work. The relation between the formation mechanism and the seams between facets is examined. The formation mechanism of the NIF-V₂O5 is discussed in comparison to fullerene-like structures of other layered materials, like IF structures of MoS₂, CdCl₂, and Cs₂O. The criteria for the perfect seaming of such hollow closed structures are highlighted.
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22
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Levi R, Bar-Sadan M, Albu-Yaron A, Popovitz-Biro R, Houben L, Shahar C, Enyashin A, Seifert G, Prior Y, Tenne R. Hollow V2O5 Nanoparticles (Fullerene-Like Analogues) Prepared by Laser Ablation. J Am Chem Soc 2010; 132:11214-22. [DOI: 10.1021/ja103719x] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Roi Levi
- Materials and Interfaces Department, Weizmann Institute of Science, Rehovot, Israel, Institute of Solid State Research and Ernst-Ruska Centre for Microscopy and Spectroscopy with Electrons, Research Centre Jülich GmbH, 52425 Jülich, Germany, Electron Microscopy Unit, Weizmann Institute of Science, PO Box 26, Rehovot 76100, Israel, Physikalische Chemie, Technische Universität Dresden, D-01062 Dresden, Germany, Institute of Solid State Chemistry, Ekaterinburg, Russia, Chemical Physics Department, Weizmann
| | - Maya Bar-Sadan
- Materials and Interfaces Department, Weizmann Institute of Science, Rehovot, Israel, Institute of Solid State Research and Ernst-Ruska Centre for Microscopy and Spectroscopy with Electrons, Research Centre Jülich GmbH, 52425 Jülich, Germany, Electron Microscopy Unit, Weizmann Institute of Science, PO Box 26, Rehovot 76100, Israel, Physikalische Chemie, Technische Universität Dresden, D-01062 Dresden, Germany, Institute of Solid State Chemistry, Ekaterinburg, Russia, Chemical Physics Department, Weizmann
| | - Ana Albu-Yaron
- Materials and Interfaces Department, Weizmann Institute of Science, Rehovot, Israel, Institute of Solid State Research and Ernst-Ruska Centre for Microscopy and Spectroscopy with Electrons, Research Centre Jülich GmbH, 52425 Jülich, Germany, Electron Microscopy Unit, Weizmann Institute of Science, PO Box 26, Rehovot 76100, Israel, Physikalische Chemie, Technische Universität Dresden, D-01062 Dresden, Germany, Institute of Solid State Chemistry, Ekaterinburg, Russia, Chemical Physics Department, Weizmann
| | - Ronit Popovitz-Biro
- Materials and Interfaces Department, Weizmann Institute of Science, Rehovot, Israel, Institute of Solid State Research and Ernst-Ruska Centre for Microscopy and Spectroscopy with Electrons, Research Centre Jülich GmbH, 52425 Jülich, Germany, Electron Microscopy Unit, Weizmann Institute of Science, PO Box 26, Rehovot 76100, Israel, Physikalische Chemie, Technische Universität Dresden, D-01062 Dresden, Germany, Institute of Solid State Chemistry, Ekaterinburg, Russia, Chemical Physics Department, Weizmann
| | - Lothar Houben
- Materials and Interfaces Department, Weizmann Institute of Science, Rehovot, Israel, Institute of Solid State Research and Ernst-Ruska Centre for Microscopy and Spectroscopy with Electrons, Research Centre Jülich GmbH, 52425 Jülich, Germany, Electron Microscopy Unit, Weizmann Institute of Science, PO Box 26, Rehovot 76100, Israel, Physikalische Chemie, Technische Universität Dresden, D-01062 Dresden, Germany, Institute of Solid State Chemistry, Ekaterinburg, Russia, Chemical Physics Department, Weizmann
| | - Chen Shahar
- Materials and Interfaces Department, Weizmann Institute of Science, Rehovot, Israel, Institute of Solid State Research and Ernst-Ruska Centre for Microscopy and Spectroscopy with Electrons, Research Centre Jülich GmbH, 52425 Jülich, Germany, Electron Microscopy Unit, Weizmann Institute of Science, PO Box 26, Rehovot 76100, Israel, Physikalische Chemie, Technische Universität Dresden, D-01062 Dresden, Germany, Institute of Solid State Chemistry, Ekaterinburg, Russia, Chemical Physics Department, Weizmann
| | - Andrey Enyashin
- Materials and Interfaces Department, Weizmann Institute of Science, Rehovot, Israel, Institute of Solid State Research and Ernst-Ruska Centre for Microscopy and Spectroscopy with Electrons, Research Centre Jülich GmbH, 52425 Jülich, Germany, Electron Microscopy Unit, Weizmann Institute of Science, PO Box 26, Rehovot 76100, Israel, Physikalische Chemie, Technische Universität Dresden, D-01062 Dresden, Germany, Institute of Solid State Chemistry, Ekaterinburg, Russia, Chemical Physics Department, Weizmann
| | - Gotthard Seifert
- Materials and Interfaces Department, Weizmann Institute of Science, Rehovot, Israel, Institute of Solid State Research and Ernst-Ruska Centre for Microscopy and Spectroscopy with Electrons, Research Centre Jülich GmbH, 52425 Jülich, Germany, Electron Microscopy Unit, Weizmann Institute of Science, PO Box 26, Rehovot 76100, Israel, Physikalische Chemie, Technische Universität Dresden, D-01062 Dresden, Germany, Institute of Solid State Chemistry, Ekaterinburg, Russia, Chemical Physics Department, Weizmann
| | - Yehiam Prior
- Materials and Interfaces Department, Weizmann Institute of Science, Rehovot, Israel, Institute of Solid State Research and Ernst-Ruska Centre for Microscopy and Spectroscopy with Electrons, Research Centre Jülich GmbH, 52425 Jülich, Germany, Electron Microscopy Unit, Weizmann Institute of Science, PO Box 26, Rehovot 76100, Israel, Physikalische Chemie, Technische Universität Dresden, D-01062 Dresden, Germany, Institute of Solid State Chemistry, Ekaterinburg, Russia, Chemical Physics Department, Weizmann
| | - Reshef Tenne
- Materials and Interfaces Department, Weizmann Institute of Science, Rehovot, Israel, Institute of Solid State Research and Ernst-Ruska Centre for Microscopy and Spectroscopy with Electrons, Research Centre Jülich GmbH, 52425 Jülich, Germany, Electron Microscopy Unit, Weizmann Institute of Science, PO Box 26, Rehovot 76100, Israel, Physikalische Chemie, Technische Universität Dresden, D-01062 Dresden, Germany, Institute of Solid State Chemistry, Ekaterinburg, Russia, Chemical Physics Department, Weizmann
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