1
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Sabisch S, Kakiuchi Y, Docherty SR, Yakimov AV, Copéret C. Geometry and Local Environment of Surface Sites in Vanadium-Based Ziegler-Natta Catalysts from 51V Solid-State NMR Spectroscopy. J Am Chem Soc 2023; 145:25595-25603. [PMID: 37962437 DOI: 10.1021/jacs.3c06200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Since its emergence over 50 years ago, the structure of surface sites in Ziegler-Natta catalysts, which are responsible for a major fraction of the world's supply of polyethylene (PE) and polypropylene (PP), has remained elusive. This is in part due to the complexity of these systems that involve multiple synthetic steps and components, namely, the MgCl2 support, a transition-metal chloride, and several organic modifiers, known as donors, that are used prior and in some instances during the activation step with alkyl aluminum. Due to the favorable nuclear magnetic resonance (NMR) properties of V and its use in Ziegler-Natta catalysts, we utilize 51V solid-state NMR spectroscopy to investigate the structure of VOCl3 on MgCl2(thf)1.5. The resulting catalyst shows ethylene polymerization activity similar to that of its Ti analogues. Using carefully benchmarked density functional theory (DFT) calculations, the experimental 51V NMR signature was analyzed to elucidate the structure of the surface sites. Using this approach, we demonstrate that the 51V NMR signature contains information about the coordination environment, i.e., the type of ancillary ligand, and the morphology of the MgCl2 support. Analysis of the NMR signature shows that the adsorption of VOCl3 on MgCl2(thf)1.5 generates a well-defined hexacoordinated V-oxo species containing one alkoxy and four chloride ligands, whose local geometry results from the interaction with an amorphous MgCl2 surface. This study illustrates how NMR spectroscopy, which is highly sensitive to the local environment of the investigated nuclei, here V, enables us to identify the exact coordination sphere and to address the effect of the support morphology on surface site structures.
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Affiliation(s)
- Sebastian Sabisch
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1-5, 8093 Zurich, Switzerland
| | - Yuya Kakiuchi
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1-5, 8093 Zurich, Switzerland
| | - Scott R Docherty
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1-5, 8093 Zurich, Switzerland
| | - Alexander V Yakimov
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1-5, 8093 Zurich, Switzerland
| | - Christophe Copéret
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1-5, 8093 Zurich, Switzerland
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2
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Hadrane B, Deniard P, Gautier N, Paris M, Payen C, Dessapt R. Micro- and nanostructured layered-kagome zinc orthovanadate BaZn 3(VO 4) 2(OH) 2. Dalton Trans 2023; 52:16927-16934. [PMID: 37927125 DOI: 10.1039/d3dt03117a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2023]
Abstract
Pure micro- and nanocrystalline powders of the layered-kagome zinc orthovanadate BaZn3(VO4)2(OH)2 have been successfully prepared and thoroughly characterised. Microstructured samples (BaZn3-MPs) have been produced by hydrothermal reaction using synthetic martyite Zn3V2O7(OH)2·2H2O as the starting reagent. Nanoparticles (NPs) with an average size of ≈ 60 nm (BaZn3-NPs-7h) or ≈ 50 nm (BaZn3-NPs-25min) have been obtained by using a coprecipitation method at ambient pressure, and by varying the stirring time. Rietveld refinements of X-ray diffraction data indicate that micro- and nanostructured BaZn3(VO4)2(OH)2 both crystallize in a R3̄m structure very similar to that of the known layered-kagome compound BaCo3(VO4)2(OH)2. Transmission electron microscopy observation of BaZn3-NPs-7h and BaZn3-NPs-25min reveals crystallized NPs with homogenous distributions of Ba, Zn, and V elements. FT-IR and Raman spectra show subtle differences between micro- and nanostructured samples which cannot be linked to any differences in the average crystal structures. The high resolution 51V MAS NMR spectrum of BaZn3-MPs shows a single isotropic line attributed to VO43- groups with C3v point group. The spectra of the nanostructured samples reveal the presence of a weak additional signal which decreases in intensity with increasing the NPs size, and which has been tentatively assigned to the presence at the surface of the NPs of a small amount of V5+ ions in a different chemical environment. Nanostructuring also impacts the optical properties of BaZn3(VO4)2(OH)2. The UV-vis absorption spectra of NPs exhibit an additional weak transition in the visible domain which is not observed for the microstructured sample.
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Affiliation(s)
- Bachchar Hadrane
- Nantes Université, CNRS, Institut des Matériaux de Nantes Jean Rouxel, IMN, F-44000 Nantes, France.
| | - Philippe Deniard
- Nantes Université, CNRS, Institut des Matériaux de Nantes Jean Rouxel, IMN, F-44000 Nantes, France.
| | - Nicolas Gautier
- Nantes Université, CNRS, Institut des Matériaux de Nantes Jean Rouxel, IMN, F-44000 Nantes, France.
| | - Michael Paris
- Nantes Université, CNRS, Institut des Matériaux de Nantes Jean Rouxel, IMN, F-44000 Nantes, France.
| | - Christophe Payen
- Nantes Université, CNRS, Institut des Matériaux de Nantes Jean Rouxel, IMN, F-44000 Nantes, France.
| | - Rémi Dessapt
- Nantes Université, CNRS, Institut des Matériaux de Nantes Jean Rouxel, IMN, F-44000 Nantes, France.
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3
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Broomhead WT, Tian W, Herrera JE, Chin YHC. Kinetic Coupling of Redox and Acid Chemistry in Methanol Partial Oxidation on Vanadium Oxide Catalysts. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- William Thomas Broomhead
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario M5S 3E5, Canada
| | - Wei Tian
- Department of Chemical and Biochemical Engineering, Western University, London, Ontario N6A 5B9, Canada
| | - José Efrain Herrera
- Department of Chemical and Biochemical Engineering, Western University, London, Ontario N6A 5B9, Canada
| | - Ya-Huei Cathy Chin
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario M5S 3E5, Canada
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4
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Wang Z, Jiang Y, Yang W, Li A, Hunger M, Baiker A, Huang J. Tailoring single site VO4 on flame-made V/Al2O3 catalysts for selective oxidation of n-butane. J Catal 2022. [DOI: 10.1016/j.jcat.2022.06.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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5
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Abou Nakad J, Berthet N, Szeto KC, De Mallmann A, Taoufik M. Direct conversion of trans-2-butene into a mixture of monomers with different composition over vanadium supported catalysts. CATAL COMMUN 2022. [DOI: 10.1016/j.catcom.2022.106469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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6
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Maleki F, Pacchioni G. Probing the nature of Lewis acid sites on oxide surfaces with 31P(CH 3) 3 NMR: a theoretical analysis. Phys Chem Chem Phys 2022; 24:19773-19782. [PMID: 35972443 DOI: 10.1039/d2cp03306b] [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
The characterization of catalytic oxide surfaces is often done by studying the properties of adsorbed probe molecules. The 31P NMR chemical shift of adsorbed trimethylphosphine, P(CH3)3 or TMP, has been used to identify the presence of different facets in oxide nanocrystals and to study the acid-base properties of the adsorption sites. The NMR studies are often complemented by DFT calculations to provide additional information on TMP adsorption mode, bond strength, etc. So far, however, no systematic study has been undertaken in order to compare on the same footing the chemical shifts and the adsorption properties of TMP on different oxide surfaces. In this work we report the results of DFT+D (D = dispersion) calculations on the adsorption of TMP on the following oxide surfaces: anatase TiO2(101) and (001), rutile TiO2(110), tetragonal ZrO2(101), stepped ZrO2(134) and (145) surfaces, rutile SnO2(110), (101) and (100), wurtzite ZnO(101̄0), and cubic CeO2(111) and (110). Beside the stoichiometric surfaces, also reduced oxides have been considered creating O vacancies in various sites. TMP has been adsorbed on top of variously coordinated Lewis acid cation sites, with the aim to identify, also with the support of machine learning algorithms, trends or patterns that can help to correlate the 31P chemical shift with physico-chemical properties of the oxide surfaces such as adsorption energy, Bader charges, cation-P distance, work function, etc. Some simple correlation can be found within the same oxide between the 31P chemical shift and the adsorption energy, while when the full set of data is considered the only correlation found is with the net charge on the TMP molecule, a descriptor of the acid strength of the adsorption site.
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Affiliation(s)
- Farahnaz Maleki
- Dipartimento di Scienza dei Materiali, Università di Milano-Bicocca, via R. Cozzi 55, 20125 Milano, Italy.
| | - Gianfranco Pacchioni
- Dipartimento di Scienza dei Materiali, Università di Milano-Bicocca, via R. Cozzi 55, 20125 Milano, Italy.
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7
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Pascoite Minerals and Potential Application of NMR Spectroscopy. MINERALS 2022. [DOI: 10.3390/min12080980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
The 20 minerals encompassing the pascoite family of decavanadate isopolyanion-containing [V10O28]6− minerals include a few minerals, such as rakovanite, that have been described as containing a protonated decavanadate anion. Rakovanite was originally assigned the formula Na3[H3V10O28]•15H2O and now is redefined with an ideal formula (NH4)3Na3[V10O28]•12H2O. Nuclear magnetic resonance (NMR) and particularly 51V NMR spectroscopy is an informative method used to describe the protonation state and speciation in both solid and solution states of materials in the chemical and life sciences. However, 51V NMR spectroscopy has not yet been used experimentally to distinguish the protonation state of the decavanadate ion of leaching solutions and thus contributing to the discussion regarding the controversial protonation states of decavanadate ions in gunterite, rakovanite, and nashite. In contrast, the morphology and crystal structure for apatites, vanadinite, pyromorphite, and mimetite was related to 207Pb NMR chemical shifts, assisting in describing the local environments of these minerals. NMR spectroscopy could be a useful method if used in the future for decavanadate-containing minerals. Currently, partial reduction of two Pascoite minerals (caseyite and nashite) is proposed and accordingly could now effectively be investigated using a different magnetic resonance technique, EPR spectroscopy.
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8
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Shan YL, Sun HL, Zhao SL, Tang PL, Zhao WT, Ding JW, Yu WL, Li LN, Feng X, Chen D. Effects of Support and CO 2 on the Performances of Vanadium Oxide-Based Catalysts in Propane Dehydrogenation. ACS Catal 2022. [DOI: 10.1021/acscatal.2c00878] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yu-Ling Shan
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Huai-Lu Sun
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Shi-Lei Zhao
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Pei-Long Tang
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Wen-Ting Zhao
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Jun-Wei Ding
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Wen-Long Yu
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Li-Na Li
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Shanghai 201204, China
| | - Xiang Feng
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, China
| | - De Chen
- Department of Chemical Engineering, Norwegian University of Science and Technology, Trondheim N-7491, Norway
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9
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Papulovskiy E, Shubin AA, Lapina OB. Investigation of vanadia-alumina catalysts with solid-state NMR spectroscopy and DFT. Phys Chem Chem Phys 2021; 23:19352-19363. [PMID: 34524321 DOI: 10.1039/d1cp03297f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, isolated surface sites of vanadium oxide on the alumina surface were modeled and compared to experimental data obtained with 51V Solid-State Nuclear Magnetic Resonance (SSNMR) spectroscopy. The geometry of the centers on the (100), (110), and (111) planes of the spinel structure and (010) monoclinic alumina was modeled using density functional theory (DFT); their 51V NMR parameters were calculated using the Gauge-Including Projector Augmented Wave (GIPAW) method. The comparison of the simulated theoretical spectra with the experimental ones made it possible to find the sites that are likely present on the surface of real catalysts. The minimum energy pathways of propane oxidative dehydrogenation to propene were calculated for the dioxovanadium site in order to estimate its activity.
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Affiliation(s)
| | - Aleksandr A Shubin
- Boreskov Institute of Catalysis, 630090 Novosibirsk, Russia. .,Novosibirsk State University, 630090 Novosibirsk, Russia
| | - Olga B Lapina
- Boreskov Institute of Catalysis, 630090 Novosibirsk, Russia.
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10
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Li M, Sakong S, Groß A. In Search of the Active Sites for the Selective Catalytic Reduction on Tungsten-Doped Vanadia Monolayer Catalysts Supported by TiO 2. ACS Catal 2021. [DOI: 10.1021/acscatal.1c01406] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Mengru Li
- Institute of Theoretical Chemistry, Ulm University, 89069 Ulm, Germany
| | - Sung Sakong
- Institute of Theoretical Chemistry, Ulm University, 89069 Ulm, Germany
| | - Axel Groß
- Institute of Theoretical Chemistry, Ulm University, 89069 Ulm, Germany
- Helmholtz Institute Ulm (HIU), Electrochemical Energy Storage, 89069 Ulm, Germany
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11
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Pavón E, Alba MD. Swelling layered minerals applications: A solid state NMR overview. PROGRESS IN NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY 2021; 124-125:99-128. [PMID: 34479713 DOI: 10.1016/j.pnmrs.2021.04.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 04/08/2021] [Accepted: 04/12/2021] [Indexed: 06/13/2023]
Abstract
Swelling layered clay minerals form an important sub-group of the phyllosilicate family. They are characterized by their ability to expand or contract in the presence or absence of water. This property makes them useful for a variety of applications, ranging from environmental technologies to heterogeneous catalysis, and including pharmaceutical and industrial applications. Solid State Nuclear Magnetic Resonance (SS-NMR) has been extensively applied in the characterization of these materials, providing useful information on their dynamics and structure that is inaccessible using other characterization methods such as X-ray diffraction. In this review, we present the key contributions of SS-NMR to the understanding of the mechanisms that govern some of the main applications associated to swelling clay minerals. The article is divided in two parts. The first part presents SS-NMR conventional applications to layered clay minerals, while the second part comprises an in-depth review of the information that SS-NMR can provide about the different properties of swelling layered clay minerals.
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Affiliation(s)
- Esperanza Pavón
- Instituto Ciencia de los Materiales de Sevilla (CSIC-US), Avda. Américo Vespucio, 49, 41092 Sevilla, Spain; Departamento de Física de la Materia Condensada, Universidad de Sevilla, Avda. Reina Mercedes, s/n, 41012 Sevilla, Spain.
| | - María D Alba
- Instituto Ciencia de los Materiales de Sevilla (CSIC-US), Avda. Américo Vespucio, 49, 41092 Sevilla, Spain
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12
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Godiksen AL, Funk MH, Rasmussen SB, Mossin S. Assessing the Importance of V(IV) During NH
3
−SCR Using
Operando
EPR Spectroscopy. ChemCatChem 2020. [DOI: 10.1002/cctc.202000802] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Marie H. Funk
- Centre for Catalysis and Sustainable Chemistry DTU Chemistry Technical University of Denmark Kemitorvet 207 2800 Kgs. Lyngby Denmark
| | | | - Susanne Mossin
- Centre for Catalysis and Sustainable Chemistry DTU Chemistry Technical University of Denmark Kemitorvet 207 2800 Kgs. Lyngby Denmark
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13
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Aoyagi T, Kohara S, Naito T, Onodera Y, Kodama M, Onodera T, Takamatsu D, Tahara S, Sakata O, Miyake T, Suzuya K, Ohara K, Usuki T, Hayashi Y, Takizawa H. Controlling oxygen coordination and valence of network forming cations. Sci Rep 2020; 10:7178. [PMID: 32346008 PMCID: PMC7188822 DOI: 10.1038/s41598-020-63786-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Accepted: 04/06/2020] [Indexed: 11/09/2022] Open
Abstract
Understanding the structure-property relationship of glass material is still challenging due to a lack of periodicity in disordered materials. Here, we report the properties and atomic structure of vanadium phosphate glasses characterized by reverse Monte Carlo modelling based on neutron/synchrotron X-ray diffraction and EXAFS data, supplemented by Raman and NMR spectroscopy. In vanadium-rich glass, the water durability, thermal stability and hardness improve as the amount of P2O5 increases, and the network former of the glass changes from VOx polyhedra to the interplay between VOx polyhedra and PO4 tetrahedra. We find for the first time that the coordination number of oxygen atoms around a V4+ is four, which is an unusually small coordination number, and plays an important role for water durability, thermal stability and hardness. Furthermore, we show that the similarity between glass and crystal beyond the nearest neighbour distance is important for glass properties. These results demonstrate that controlling the oxygen coordination and valence of the network-forming cation is necessary for designing the properties of glass.
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Affiliation(s)
- Takuya Aoyagi
- Hitachi Research Laboratory, Hitachi Ltd., 7-1-1 Omika, Hitachi, Ibaraki, 319-1292, Japan. .,Tohoku University, 6-6-07 Aoba-yama, Sendai, Miyagi, 980-8579, Japan.
| | - Shinji Kohara
- Light/Quantum Beam Field, Research Center for Advanced Measurement and Characterization, National Institute for Material Science (NIMS), 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo, 679-5148, Japan. .,Center for Materials Research by Information Integration (CMI2) Research and Services Division of Materials Data and Integrated System (MaDIS), NIMS, 1-2-1 Sengen, Tsukuba, Ibaraki, 305-0047, Japan. .,PRESTO, Japan Science and Technology Agency, 7 Gobancho, Chiyoda-ku, Tokyo, 102-0076, Japan. .,Diffraction and Scattering Division, Japan Synchrotron Radiation Research Institute/SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo, 679-5198, Japan.
| | - Takashi Naito
- Hitachi Research Laboratory, Hitachi Ltd., 7-1-1 Omika, Hitachi, Ibaraki, 319-1292, Japan
| | - Yohei Onodera
- Center for Materials Research by Information Integration (CMI2) Research and Services Division of Materials Data and Integrated System (MaDIS), NIMS, 1-2-1 Sengen, Tsukuba, Ibaraki, 305-0047, Japan.,Institute for Integrated Radiation and Nuclear Science, Kyoto University, 2-1010 Asashiro-nishi, Kumatori-cho, Sennan-gun, Osaka, 590-0494, Japan
| | - Motomune Kodama
- Hitachi Research Laboratory, Hitachi Ltd., 7-1-1 Omika, Hitachi, Ibaraki, 319-1292, Japan
| | - Taigo Onodera
- Hitachi Research Laboratory, Hitachi Ltd., 7-1-1 Omika, Hitachi, Ibaraki, 319-1292, Japan
| | - Daiko Takamatsu
- Hitachi Research Laboratory, Hitachi Ltd., 7-1-1 Omika, Hitachi, Ibaraki, 319-1292, Japan
| | - Shuta Tahara
- Center for Materials Research by Information Integration (CMI2) Research and Services Division of Materials Data and Integrated System (MaDIS), NIMS, 1-2-1 Sengen, Tsukuba, Ibaraki, 305-0047, Japan.,University of the Ryukyus, 1 Senbaru, Nishihara-cho, Okinawa, 903-0213, Japan
| | - Osami Sakata
- Light/Quantum Beam Field, Research Center for Advanced Measurement and Characterization, National Institute for Material Science (NIMS), 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo, 679-5148, Japan
| | - Tatsuya Miyake
- Hitachi Research Laboratory, Hitachi Ltd., 7-1-1 Omika, Hitachi, Ibaraki, 319-1292, Japan
| | - Kentaro Suzuya
- Japan Atomic Energy Agency/J-PARC, 2-4 Shirakata, Tokai-mura, Naka-gun, Ibaraki, 319-1195, Japan
| | - Koji Ohara
- Diffraction and Scattering Division, Japan Synchrotron Radiation Research Institute/SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo, 679-5198, Japan
| | - Takeshi Usuki
- Yamagata University, 1-4-12 Kojirakawa-machi, Yamagata-shi, 990-8560, Japan
| | - Yamato Hayashi
- Tohoku University, 6-6-07 Aoba-yama, Sendai, Miyagi, 980-8579, Japan
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14
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Jaegers NR, Lai J, He Y, Walter E, Dixon DA, Vasiliu M, Chen Y, Wang C, Hu MY, Mueller KT, Wachs IE, Wang Y, Hu JZ. Mechanism by which Tungsten Oxide Promotes the Activity of Supported V
2
O
5
/TiO
2
Catalysts for NO
X
Abatement: Structural Effects Revealed by
51
V MAS NMR Spectroscopy. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201904503] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Nicholas R. Jaegers
- Institute for Integrated Catalysis and Earth and Biological Science Directorate Pacific Northwest National Laboratory Richland WA 99354 USA
- Voiland School of Chemical Engineering and Bioengineering Washington State University Pullman WA 99163 USA
| | - Jun‐Kun Lai
- OperandoMolecular Spectroscopy & Catalysis Laboratory Lehigh University Bethlehem PA 18015 USA
| | - Yang He
- Institute for Integrated Catalysis and Earth and Biological Science Directorate Pacific Northwest National Laboratory Richland WA 99354 USA
| | - Eric Walter
- Institute for Integrated Catalysis and Earth and Biological Science Directorate Pacific Northwest National Laboratory Richland WA 99354 USA
| | - David A. Dixon
- Department of Chemistry The University of Alabama Tuscaloosa AL 35487 USA
| | - Monica Vasiliu
- Department of Chemistry The University of Alabama Tuscaloosa AL 35487 USA
| | - Ying Chen
- Institute for Integrated Catalysis and Earth and Biological Science Directorate Pacific Northwest National Laboratory Richland WA 99354 USA
| | - Chongmin Wang
- Institute for Integrated Catalysis and Earth and Biological Science Directorate Pacific Northwest National Laboratory Richland WA 99354 USA
| | - Mary Y. Hu
- Institute for Integrated Catalysis and Earth and Biological Science Directorate Pacific Northwest National Laboratory Richland WA 99354 USA
| | - Karl T. Mueller
- Institute for Integrated Catalysis and Earth and Biological Science Directorate Pacific Northwest National Laboratory Richland WA 99354 USA
| | - Israel E. Wachs
- OperandoMolecular Spectroscopy & Catalysis Laboratory Lehigh University Bethlehem PA 18015 USA
| | - Yong Wang
- Institute for Integrated Catalysis and Earth and Biological Science Directorate Pacific Northwest National Laboratory Richland WA 99354 USA
- Voiland School of Chemical Engineering and Bioengineering Washington State University Pullman WA 99163 USA
| | - Jian Zhi Hu
- Institute for Integrated Catalysis and Earth and Biological Science Directorate Pacific Northwest National Laboratory Richland WA 99354 USA
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15
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Jaegers NR, Lai J, He Y, Walter E, Dixon DA, Vasiliu M, Chen Y, Wang C, Hu MY, Mueller KT, Wachs IE, Wang Y, Hu JZ. Mechanism by which Tungsten Oxide Promotes the Activity of Supported V
2
O
5
/TiO
2
Catalysts for NO
X
Abatement: Structural Effects Revealed by
51
V MAS NMR Spectroscopy. Angew Chem Int Ed Engl 2019; 58:12609-12616. [DOI: 10.1002/anie.201904503] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Indexed: 11/09/2022]
Affiliation(s)
- Nicholas R. Jaegers
- Institute for Integrated Catalysis and Earth and Biological Science Directorate Pacific Northwest National Laboratory Richland WA 99354 USA
- Voiland School of Chemical Engineering and Bioengineering Washington State University Pullman WA 99163 USA
| | - Jun‐Kun Lai
- OperandoMolecular Spectroscopy & Catalysis Laboratory Lehigh University Bethlehem PA 18015 USA
| | - Yang He
- Institute for Integrated Catalysis and Earth and Biological Science Directorate Pacific Northwest National Laboratory Richland WA 99354 USA
| | - Eric Walter
- Institute for Integrated Catalysis and Earth and Biological Science Directorate Pacific Northwest National Laboratory Richland WA 99354 USA
| | - David A. Dixon
- Department of Chemistry The University of Alabama Tuscaloosa AL 35487 USA
| | - Monica Vasiliu
- Department of Chemistry The University of Alabama Tuscaloosa AL 35487 USA
| | - Ying Chen
- Institute for Integrated Catalysis and Earth and Biological Science Directorate Pacific Northwest National Laboratory Richland WA 99354 USA
| | - Chongmin Wang
- Institute for Integrated Catalysis and Earth and Biological Science Directorate Pacific Northwest National Laboratory Richland WA 99354 USA
| | - Mary Y. Hu
- Institute for Integrated Catalysis and Earth and Biological Science Directorate Pacific Northwest National Laboratory Richland WA 99354 USA
| | - Karl T. Mueller
- Institute for Integrated Catalysis and Earth and Biological Science Directorate Pacific Northwest National Laboratory Richland WA 99354 USA
| | - Israel E. Wachs
- OperandoMolecular Spectroscopy & Catalysis Laboratory Lehigh University Bethlehem PA 18015 USA
| | - Yong Wang
- Institute for Integrated Catalysis and Earth and Biological Science Directorate Pacific Northwest National Laboratory Richland WA 99354 USA
- Voiland School of Chemical Engineering and Bioengineering Washington State University Pullman WA 99163 USA
| | - Jian Zhi Hu
- Institute for Integrated Catalysis and Earth and Biological Science Directorate Pacific Northwest National Laboratory Richland WA 99354 USA
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16
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Kim YK, Ryu S. Evidences for Different Reaction Sites for Dehydrogenation and Dehydration of Ethanol over Vanadia Supported on Titania. B KOREAN CHEM SOC 2019. [DOI: 10.1002/bkcs.11709] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yu Kwon Kim
- Department of Chemistry and Department of Energy Systems ResearchAjou University Suwon 16499 Republic of Korea
| | - Seol Ryu
- Department of ChemistryChosun University Gwangju 61452 Republic of Korea
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17
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Santhanaraj D, Suresh C, Selvamani A, Shanthi K. A comparison study between V-SBA-15 and V-KIT-6 catalysts for selective oxidation of diphenylmethane. NEW J CHEM 2019. [DOI: 10.1039/c9nj02007a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Vanadium incorporated mesoporous SBA-15 and KIT-6 catalysts were prepared by a direct hydrothermal method under mild acidic reaction conditions.
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Affiliation(s)
- D. Santhanaraj
- Department of Chemistry
- Loyola College
- Chennai 600 034
- India
| | - C. Suresh
- Electrodics and Electrocatalysis Division
- CSIR-Central Electrochemical Research Institute
- Karaikudi 630 006
- India
| | - A. Selvamani
- Department of Chemistry
- Anna University
- Chennai 600 025
- India
| | - K. Shanthi
- Department of Chemistry
- Anna University
- Chennai 600 025
- India
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18
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Kortewille B, Wachs IE, Cibura N, Pfingsten O, Bacher G, Muhler M, Strunk J. Photocatalytic Methanol Oxidation by Supported Vanadium Oxide Species: Influence of Support and Degree of Oligomerization. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800490] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Bianca Kortewille
- Heterogene Photokatalyse Leibniz‐Institut für Katalyse e. V. an der Universität Rostock 18059 Rostock Germany
- Lehrstuhl für Technische Chemie Ruhr‐Universität Bochum 44801 Bochum Germany
| | - Israel E. Wachs
- Operando Molecular Spectroscopy & Catalysis Lab Lehigh University 18015‐3128 Bethlehem PA USA
| | - Niklas Cibura
- AG Nanobasierte Heterogene Katalysatoren Max‐Planck‐Institut für Chemische Energiekonversion 45470 Mülheim/Ruhr Germany
| | - Oliver Pfingsten
- Werkstoffe der Elektrotechnik, and Center for Nanointegration Duisburg‐Essen (CENIDE) Universität Duisburg‐Essen 47057 Duisburg Germany
| | - Gerd Bacher
- Werkstoffe der Elektrotechnik, and Center for Nanointegration Duisburg‐Essen (CENIDE) Universität Duisburg‐Essen 47057 Duisburg Germany
| | - Martin Muhler
- Lehrstuhl für Technische Chemie Ruhr‐Universität Bochum 44801 Bochum Germany
| | - Jennifer Strunk
- Heterogene Photokatalyse Leibniz‐Institut für Katalyse e. V. an der Universität Rostock 18059 Rostock Germany
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19
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Lai JK, Wachs IE. A Perspective on the Selective Catalytic Reduction (SCR) of NO with NH3 by Supported V2O5–WO3/TiO2 Catalysts. ACS Catal 2018. [DOI: 10.1021/acscatal.8b01357] [Citation(s) in RCA: 244] [Impact Index Per Article: 40.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jun-Kun Lai
- Operando Molecular Spectroscopy & Catalysis Laboratory, Department of Chemical and Biomolecular Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Israel E. Wachs
- Operando Molecular Spectroscopy & Catalysis Laboratory, Department of Chemical and Biomolecular Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
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20
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Characterization and reactivity of vanadium oxide supported on TiO 2 -SiO 2 mixed oxide support. MOLECULAR CATALYSIS 2018. [DOI: 10.1016/j.mcat.2018.01.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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21
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Zhu R, Chatzidimitriou A, Bond JQ. Influence of vanadate structure and support identity on catalytic activity in the oxidative cleavage of methyl ketones. J Catal 2018. [DOI: 10.1016/j.jcat.2017.12.034] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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22
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Zeman OEO, Hoch C, Hochleitner R, Bräuniger T. NMR interaction tensors of 51V and 207Pb in vanadinite, Pb 5(VO 4) 3Cl, determined from DFT calculations and single-crystal NMR measurements, using only one general rotation axis. SOLID STATE NUCLEAR MAGNETIC RESONANCE 2018; 89:11-20. [PMID: 29248754 DOI: 10.1016/j.ssnmr.2017.12.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Revised: 12/05/2017] [Accepted: 12/05/2017] [Indexed: 06/07/2023]
Abstract
Orientation-dependent NMR spectra of a single crystal of the mineral vanadinite, Pb5(VO4)3Cl, were acquired using only one rotation axis with a general orientation in the hexagonal crystal lattice (space group P63/m). The chemical shift (CS) tensors for the 207Pb on Wyckoff positions 6h and 4f, and both CS and quadrupole coupling tensor Q for 51V at the positions 6h were determined by including the NMR response of symmetry-related atoms in the unit cell (and in case of 207Pb at 4f, also the isotropic shift from MAS NMR spectra). This previously suggested 'single rotation method' greatly reduces the necessary amount of data acquisition and analysis. The precise orientation of the rotation axis could not be found by X-ray diffraction experiments because of the high linear absorption coefficient of vanadinite, which is chiefly due to its high lead content. The axis orientation was therefore included into the multi-parameter data fit routine. This NMR-based approach is widely applicable, and offers an alternative way of orienting single crystals. The NMR parameters derived from the tensor eigenvalues are δiso=(-1729±9) ppm, Δδ=(-1071±5) ppm, ηCS=0.362±0.008 for 207Pb at positions 6h, and δiso=(-1619±2) ppm, Δδ=(-780±58) ppm, ηCS=0.06±0.08 for positions 4f. For 51V, δiso=(-509±3) ppm, Δδ=(-37±2) ppm, ηCS=0.78±0.09, with the quadrupolar coupling described by χ=(2.52±0.01) MHz and ηQ=0.047±0.003. In contrast to the precisely determined tensor eigenvalues, the orientation of the eigenvectors in the crystal ab -plane of the vanadinite system could only be resolved by resorting to data obtained from density functional theory (DFT) calculations.
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Affiliation(s)
- Otto E O Zeman
- Department of Chemistry, University of Munich (LMU), Butenandtstr. 5-13, 81377 Munich, Germany
| | - Constantin Hoch
- Department of Chemistry, University of Munich (LMU), Butenandtstr. 5-13, 81377 Munich, Germany
| | - Rupert Hochleitner
- Mineralogical State Collection Munich (SNSB), Theresienstr. 4, 80333 Munich, Germany
| | - Thomas Bräuniger
- Department of Chemistry, University of Munich (LMU), Butenandtstr. 5-13, 81377 Munich, Germany.
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23
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Luo QX, Zhang XK, Hou BL, Chen JG, Zhu C, Liu ZW, Liu ZT, Lu J. Catalytic function of VOx/Al2O3 for oxidative dehydrogenation of propane: support microstructure-dependent mass transfer and diffusion. Catal Sci Technol 2018. [DOI: 10.1039/c8cy00564h] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The intrinsic effect of the support microstructure on the catalytic function of VOx/Al2O3 in the oxidative dehydrogenation of propane (ODHP) was studied.
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Affiliation(s)
- Qun-Xing Luo
- Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of Education)
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an 710119
- China
| | - Xiao-Kang Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of Education)
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an 710119
- China
| | - Bo-Li Hou
- Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of Education)
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an 710119
- China
| | - Jian-Gang Chen
- Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of Education)
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an 710119
- China
| | - Chao Zhu
- Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of Education)
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an 710119
- China
| | - Zhong-Wen Liu
- Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of Education)
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an 710119
- China
| | - Zhao-Tie Liu
- Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of Education)
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an 710119
- China
| | - Jian Lu
- State Key Laboratory of Fluorine and Nitrogen Chemicals
- Xi'an Modern Chemical Research Institute
- Xi'an 710065
- China
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24
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Gupta R, Huang W, Francesconi LC, Polenova T. Effect of positional isomerism and vanadium substitution on 51V magic angle spinning NMR Spectra Of Wells-Dawson polyoxotungstates. SOLID STATE NUCLEAR MAGNETIC RESONANCE 2017; 84:28-33. [PMID: 27998683 PMCID: PMC5466850 DOI: 10.1016/j.ssnmr.2016.12.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2016] [Revised: 12/02/2016] [Accepted: 12/04/2016] [Indexed: 06/06/2023]
Abstract
We examined the positional isomerism and vanadium substitution on the 51V magic angle spinning NMR spectra of potassium salts of vanadium-substituted polyoxotungstates of the Wells-Dawson series. NMR parameters of this class of catalytically active polyoxotungstates effect of are reported. Multiple species, indicative of differences in the local environment at the substitution sites, are observed in solid-state NMR spectra of the di- and tri- substituted complexes in contrast to solution NMR spectra, where single average chemical shift was observed. The quadrupolar and chemical shift anisotropy parameters depend strongly on the position and the degree of the vanadium substitution into the oxoanion core establishing 51V SATRAS NMR spectroscopy as a sensitive probe of the local electronic environment in these catalytically active solids.
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Affiliation(s)
- Rupal Gupta
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE 19716, USA
| | - Wenlin Huang
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE 19716, USA
| | - Lynn C Francesconi
- Department of Chemistry, City University of New York, Hunter College, 695 Park Avenue, New York 10021, USA; Ph.D. Program in Chemistry, The Graduate Center of the City University of New York, New York 10016, USA.
| | - Tatyana Polenova
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE 19716, USA.
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25
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Zhang W, Hou W, Meng T, Zhuang W, Xie J, Zhou Y, Wang J. Direct synthesis of V-containing all-silica beta-zeolite for efficient one-pot, one-step conversion of carbohydrates into 2,5-diformylfuran. Catal Sci Technol 2017. [DOI: 10.1039/c7cy01834g] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
V-containing all silica beta-zeolite exhibited high atom-efficiency in the direct synthesis of 2,5-diformylfuran from carbohydrates.
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Affiliation(s)
- Wei Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Chemical Engineering
- Nanjing Tech University (former Nanjing University of Technology)
- Nanjing
- PR China
| | - Wei Hou
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Chemical Engineering
- Nanjing Tech University (former Nanjing University of Technology)
- Nanjing
- PR China
| | - Tongsuo Meng
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Chemical Engineering
- Nanjing Tech University (former Nanjing University of Technology)
- Nanjing
- PR China
| | - Wenxia Zhuang
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Chemical Engineering
- Nanjing Tech University (former Nanjing University of Technology)
- Nanjing
- PR China
| | - Jingyan Xie
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Chemical Engineering
- Nanjing Tech University (former Nanjing University of Technology)
- Nanjing
- PR China
| | - Yu Zhou
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Chemical Engineering
- Nanjing Tech University (former Nanjing University of Technology)
- Nanjing
- PR China
| | - Jun Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Chemical Engineering
- Nanjing Tech University (former Nanjing University of Technology)
- Nanjing
- PR China
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26
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Deraz NAM, El-Sayed M, El-Aal AA. Catalytic Decomposition of H2O2 over Manganese Oxides Supported on an Active Alumina. ADSORPT SCI TECHNOL 2016. [DOI: 10.1260/0263617011494385] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Affiliation(s)
- Nasr-Allah M. Deraz
- Physical Chemistry Department, National Research Center, Dokki, Cairo, Egypt
| | - M.A. El-Sayed
- Chemistry Department, Faculty of Science, Zagazig University, Zagazig, Egypt
| | - A. Abd. El-Aal
- Chemistry Department, Faculty of Science, Zagazig University, Zagazig, Egypt
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27
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Rana S, Pandey B, Dey A, Haque R, Rajaraman G, Maiti D. A Doubly Biomimetic Synthetic Transformation: Catalytic Decarbonylation and Halogenation at Room Temperature by Vanadium Pentoxide. ChemCatChem 2016. [DOI: 10.1002/cctc.201600843] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Sujoy Rana
- Department of Chemistry; Indian Institute of Technology Bombay, Powai; Mumbai- 400076 India
| | - Bhawana Pandey
- Department of Chemistry; Indian Institute of Technology Bombay, Powai; Mumbai- 400076 India
| | - Aniruddha Dey
- Department of Chemistry; Indian Institute of Technology Bombay, Powai; Mumbai- 400076 India
| | - Rameezul Haque
- Department of Chemistry; Indian Institute of Technology Bombay, Powai; Mumbai- 400076 India
| | - Gopalan Rajaraman
- Department of Chemistry; Indian Institute of Technology Bombay, Powai; Mumbai- 400076 India
| | - Debabrata Maiti
- Department of Chemistry; Indian Institute of Technology Bombay, Powai; Mumbai- 400076 India
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28
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Bai P, Ma Z, Li T, Tian Y, Zhang Z, Zhong Z, Xing W, Wu P, Liu X, Yan Z. Relationship between Surface Chemistry and Catalytic Performance of Mesoporous γ-Al 2O 3 Supported VO X Catalyst in Catalytic Dehydrogenation of Propane. ACS APPLIED MATERIALS & INTERFACES 2016; 8:25979-25990. [PMID: 27636162 DOI: 10.1021/acsami.6b07779] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Mesoporous γ-Al2O3 was synthesized via a cation-anion double hydrolysis approach (CADH). The synthesized mesoporous alumina displayed a relatively high surface area, a large pore volume and a narrow pore size distribution. By applying the mesoporous alumina as a support, supported vanadium catalysts were prepared and evaluated in the dehydrogenation of propane, exhibiting a superior catalytic performance over that supported on a commercial alumina. Materials were characterized with a variety of techniques such as X-ray diffraction, X-ray photoelectron spectroscopy, ultraviolet-visible spectroscopy, 51V magnetic angle spinning nuclear magnetic resonance, Raman spectroscopy, Fourier transformed infrared spectroscopy of pyridine adsorption and thermogravimetric-differential thermal analysis. The correlated structure-performance relationship of catalysts reveals that a higher crystallization temperature endows mesoporous alumina materials with more surface acid sites, favoring the formation of polymerized VOX species, which are more active than isolated ones in the propane dehydrogenation, resulting in a better catalytic performance. The established relationship between surface chemistry and catalytic performance of supported VOX catalysts suggests that a superior vanadium catalyst for propane dehydrogenation could be achieved by rationally enriching the concentration of polymeric VOX species on the catalyst, which can be realized by tuning the surface acidity of alumina support.
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Affiliation(s)
- Peng Bai
- State Key Laboratory of Heavy Oil Processing, Key Laboratory of Catalysis, College of Chemical Engineering, China University of Petroleum , Qingdao 266580, China
| | - Zhipeng Ma
- State Key Laboratory of Heavy Oil Processing, Key Laboratory of Catalysis, College of Chemical Engineering, China University of Petroleum , Qingdao 266580, China
| | - Tingting Li
- State Key Laboratory of Heavy Oil Processing, Key Laboratory of Catalysis, College of Chemical Engineering, China University of Petroleum , Qingdao 266580, China
| | - Yupeng Tian
- State Key Laboratory of Heavy Oil Processing, Key Laboratory of Catalysis, College of Chemical Engineering, China University of Petroleum , Qingdao 266580, China
| | - Zhanquan Zhang
- Petrochina Petrochemical Research Institute , Beijing 102206, China
| | - Ziyi Zhong
- School of Chemical & Biomedical Engineering, Nanyang Technological University (NTU) , 62 Nanyang Drive, 637459 Singapore
| | - Wei Xing
- School of Science, China University of Petroleum , Qingdao 266580, China
| | - Pingping Wu
- State Key Laboratory of Heavy Oil Processing, Key Laboratory of Catalysis, College of Chemical Engineering, China University of Petroleum , Qingdao 266580, China
| | - Xinmei Liu
- State Key Laboratory of Heavy Oil Processing, Key Laboratory of Catalysis, College of Chemical Engineering, China University of Petroleum , Qingdao 266580, China
| | - Zifeng Yan
- State Key Laboratory of Heavy Oil Processing, Key Laboratory of Catalysis, College of Chemical Engineering, China University of Petroleum , Qingdao 266580, China
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29
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Barman S, Maity N, Bhatte K, Ould-Chikh S, Dachwald O, Haeßner C, Saih Y, Abou-Hamad E, Llorens I, Hazemann JL, Köhler K, D’ Elia V, Basset JM. Single-Site VOx Moieties Generated on Silica by Surface Organometallic Chemistry: A Way To Enhance the Catalytic Activity in the Oxidative Dehydrogenation of Propane. ACS Catal 2016. [DOI: 10.1021/acscatal.6b01263] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Samir Barman
- KAUST
Catalysis Center (KCC), King Abdullah University of Science and Technology, 23955-6900 Thuwal, Saudi Arabia
| | - Niladri Maity
- KAUST
Catalysis Center (KCC), King Abdullah University of Science and Technology, 23955-6900 Thuwal, Saudi Arabia
| | - Kushal Bhatte
- KAUST
Catalysis Center (KCC), King Abdullah University of Science and Technology, 23955-6900 Thuwal, Saudi Arabia
| | - Samy Ould-Chikh
- KAUST
Catalysis Center (KCC), King Abdullah University of Science and Technology, 23955-6900 Thuwal, Saudi Arabia
| | - Oliver Dachwald
- Departments
of Chemistry and Inorganic Chemistry, Technical University of Munich, Lichtenbergstrasse 4, 85747 Garching, Germany
| | - Carmen Haeßner
- Departments
of Chemistry and Inorganic Chemistry, Technical University of Munich, Lichtenbergstrasse 4, 85747 Garching, Germany
- Catalysis
Research Center, Technical University of Munich, Ernst-Otto-Fischer-Strasse
1, 85747 Garching, Germany
| | - Youssef Saih
- KAUST
Catalysis Center (KCC), King Abdullah University of Science and Technology, 23955-6900 Thuwal, Saudi Arabia
| | - Edy Abou-Hamad
- KAUST
Catalysis Center (KCC), King Abdullah University of Science and Technology, 23955-6900 Thuwal, Saudi Arabia
| | - Isabelle Llorens
- Institut de Recherches
sur la Catalyse et l’Environnement de Lyon IRCELYON, UMR 5256,
CNRS − Université Lyon 1, 2 Avenue Albert Einstein, 69626 CEDEX Villeurbanne, France
| | - Jean-Louis Hazemann
- Institut Neel, CNRS, 25 Avenue des Martyrs, F-38042 CEDEX 9 Grenoble, France
| | - Klaus Köhler
- Departments
of Chemistry and Inorganic Chemistry, Technical University of Munich, Lichtenbergstrasse 4, 85747 Garching, Germany
- Catalysis
Research Center, Technical University of Munich, Ernst-Otto-Fischer-Strasse
1, 85747 Garching, Germany
| | - Valerio D’ Elia
- KAUST
Catalysis Center (KCC), King Abdullah University of Science and Technology, 23955-6900 Thuwal, Saudi Arabia
- Department
of Materials Science and Engineering, School of Molecular Science
and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), 21210 Wangchan, Rayong, Thailand
| | - Jean-Marie Basset
- KAUST
Catalysis Center (KCC), King Abdullah University of Science and Technology, 23955-6900 Thuwal, Saudi Arabia
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30
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Kilcup N, Gaynard S, Werner-Zwanziger U, Tonkopi E, Hayes J, Boyd D. Stimulation of apoptotic pathways in liver cancer cells: An alternative perspective on the biocompatibility and the utility of biomedical glasses. J Biomater Appl 2015; 30:1445-59. [DOI: 10.1177/0885328215621663] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A host of research opportunities with innumerable clinical applications are open to biomedical glasses if one considers their potential as therapeutic inorganic ion delivery systems. Generally, applications have been limited to repair and regeneration of hard tissues while compositions are largely constrained to the original bioactive glass developed in the 1960s. However, in oncology applications the therapeutic paradigm shifts from repair to targeted destruction. With this in mind, the composition–structure–property–function relationships of vanadium-containing zinc-silicate glasses (0.51SiO2–0.29Na2O–(0.20- X)ZnO– XV2O5, 0 ≤ X ≤ 0.09) were characterized in order to determine their potential as therapeutic inorganic ion delivery systems. Increased V2O5 mole fraction resulted in a linear decrease in density and glass transition temperature (Tg). 29Si MAS NMR peak maxima shifted upfield while 51V MAS NMR peak maxima were independent of V2O5 content and overlapped well with the spectra NaVO3. Increased V2O5 mole fraction caused ion release to increase. When human liver cancer cells, HepG2, were exposed to these ions they demonstrated a concentration-dependent cytotoxic response, mediated by apoptosis. This work demonstrates that the zinc-silicate system studied herein is capable of delivering therapeutic inorganic ions at concentrations that induce apoptotic cell death and provide a simple means to control therapeutic inorganic ion delivery.
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Affiliation(s)
- Nancy Kilcup
- School of Biomedical Engineering, Dalhousie University, Halifax, Canada
| | - Seán Gaynard
- Regenerative Medicine Institute, Bioscience Research Building, National University of Ireland Galway, Galway, Ireland
| | - Ulrike Werner-Zwanziger
- Department of Chemistry and Institute for Research in Materials, Dalhousie University, Halifax, Canada
| | - Elena Tonkopi
- Department of Diagnostic Imaging and Interventional Radiology, QEII Health Sciences Centre, Victoria General Hospital, Victoria Building, Halifax, Canada
- Department of Diagnostic Radiology, Dalhousie University, Halifax, Canada
| | - Jessica Hayes
- Regenerative Medicine Institute, Bioscience Research Building, National University of Ireland Galway, Galway, Ireland
| | - Daniel Boyd
- School of Biomedical Engineering, Dalhousie University, Halifax, Canada
- Department of Diagnostic Imaging and Interventional Radiology, QEII Health Sciences Centre, Victoria General Hospital, Victoria Building, Halifax, Canada
- Department of Applied Oral Sciences, Dentistry Building, Dalhousie University, Halifax, Canada
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31
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Hu JZ, Xu S, Li WZ, Hu MY, Deng X, Dixon DA, Vasiliu M, Craciun R, Wang Y, Bao X, Peden CHF. Investigation of the Structure and Active Sites of TiO2 Nanorod Supported VOx Catalysts by High-Field and Fast-Spinning 51V MAS NMR. ACS Catal 2015. [DOI: 10.1021/acscatal.5b00286] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jian Zhi Hu
- Institute
for Integrated Catalysis and Fundamental and Computational Science
Directorate, Pacific Northwest National Laboratory Richland, Washington 99354, United States
| | - Suochang Xu
- Institute
for Integrated Catalysis and Fundamental and Computational Science
Directorate, Pacific Northwest National Laboratory Richland, Washington 99354, United States
- Dalian
Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
| | - Wei-Zhen Li
- Institute
for Integrated Catalysis and Fundamental and Computational Science
Directorate, Pacific Northwest National Laboratory Richland, Washington 99354, United States
| | - Mary Y. Hu
- Institute
for Integrated Catalysis and Fundamental and Computational Science
Directorate, Pacific Northwest National Laboratory Richland, Washington 99354, United States
| | - Xuchu Deng
- Institute
for Integrated Catalysis and Fundamental and Computational Science
Directorate, Pacific Northwest National Laboratory Richland, Washington 99354, United States
| | - David A. Dixon
- Department
of Chemistry, The University of Alabama, Tuscaloosa, Alabama 35487-0336, United States
| | - Monica Vasiliu
- Department
of Chemistry, The University of Alabama, Tuscaloosa, Alabama 35487-0336, United States
| | - Raluca Craciun
- Department
of Chemistry, The University of Alabama, Tuscaloosa, Alabama 35487-0336, United States
| | - Yong Wang
- Institute
for Integrated Catalysis and Fundamental and Computational Science
Directorate, Pacific Northwest National Laboratory Richland, Washington 99354, United States
- Voiland
School of Chemical Engineering and Bioengineering, Washington State University, Pullman, Washington 99163, United States
| | - Xinhe Bao
- Dalian
Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
| | - Charles H. F. Peden
- Institute
for Integrated Catalysis and Fundamental and Computational Science
Directorate, Pacific Northwest National Laboratory Richland, Washington 99354, United States
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32
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33
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Effect of Surface Acid Properties of Modified VOx/Al2O3 Catalysts on Methanol Selective Oxidation. Catal Letters 2013. [DOI: 10.1007/s10562-013-1012-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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34
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Kompio PG, Brückner A, Hipler F, Auer G, Löffler E, Grünert W. A new view on the relations between tungsten and vanadium in V2O5WO3/TiO2 catalysts for the selective reduction of NO with NH3. J Catal 2012. [DOI: 10.1016/j.jcat.2011.11.008] [Citation(s) in RCA: 225] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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35
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Molinari JE, Nakka L, Kim T, Wachs IE. Dynamic Surface Structures and Reactivity of Vanadium-Containing Molybdophosphoric Acid (H3+xPMo12–xVxO40) Keggin Catalysts during Methanol Oxidation and Dehydration. ACS Catal 2011. [DOI: 10.1021/cs2001362] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Julie E. Molinari
- Operando Molecular Spectroscopy and Catalysis Laboratory, Chemical Engineering Department, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Lingaiah Nakka
- Operando Molecular Spectroscopy and Catalysis Laboratory, Chemical Engineering Department, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Taejin Kim
- Operando Molecular Spectroscopy and Catalysis Laboratory, Chemical Engineering Department, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Israel E. Wachs
- Operando Molecular Spectroscopy and Catalysis Laboratory, Chemical Engineering Department, Lehigh University, Bethlehem, Pennsylvania 18015, United States
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Rasmussen S, Due-Hansen J, Villarroel M, Gil-Llambias F, Fehrmann R, Ávila P. Multidisciplinary determination of the phase distribution for VOX–ZrO2–SO42−–sepiolite catalysts for NH3-SCR. Catal Today 2011. [DOI: 10.1016/j.cattod.2011.05.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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37
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Saha A, Eyman DP. Surface Optimization and Redox Behavior of Vanadium Oxides Supported on γ-Al2O3. Ind Eng Chem Res 2011. [DOI: 10.1021/ie200278w] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Arindom Saha
- Department of Chemistry, University of Iowa, Iowa City, Iowa 52242-1294, United States
| | - Darrell P. Eyman
- Department of Chemistry, University of Iowa, Iowa City, Iowa 52242-1294, United States
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38
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Eichele K, Grimmer AR. Phosphorus-31 and vanadium-51 solid-state nuclear magnetic resonance spectroscopy of β-vanadyl phosphate — Effects of homo- and heteronuclear spin-spin, electrostatic, and paramagnetic interactions. CAN J CHEM 2011. [DOI: 10.1139/v11-025] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Field-dependent 31P solid-state NMR studies demonstrate that the line shape in spectra of β-VOPO4 depends on 51V–31P direct and indirect spin-spin interactions (M2 (51V, 31P) = 101(23) × 106 rad2 s–2, 2Jiso (51V, 31P) = 48(5) Hz) and, to a lesser extent, on 31P chemical shift anisotropy (δiso = –10.4(2), Ω = δ11 – δ33 = 22(2) ppm) and 31P–31P interactions (M2 (31P, 31P) = 6.7(1) × 106 rad2 s–2). In contrast, homonuclear dipolar interactions play an important role for the field and spinning rate dependent 31P spin-lattice relaxation via paramagnetic impurities (T1 = 20–60 s). Vanadium-51 magic-angle spinning NMR spectra indicate a sizeable chemical shift anisotropy (δiso = –754(1), δ11 = –336(10), δ22 = –344(6), δ33 = –1581(8) ppm) and nuclear quadrupole interaction (χ = 1.5(1) MHz, η = 0.35(5)); the principal axis systems of both interactions are clearly not coincident, with an angle of 35(5)° between the greatest component of the electric field gradient tensor and δ33.
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Affiliation(s)
- Klaus Eichele
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Str. 2, D-12489, Berlin, Germany
| | - Arnd-Rüdiger Grimmer
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Str. 2, D-12489, Berlin, Germany
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39
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Vining WC, Strunk J, Bell AT. Investigation of the structure and activity of VOx/ZrO2/SiO2 catalysts for methanol oxidation to formaldehyde. J Catal 2011. [DOI: 10.1016/j.jcat.2011.05.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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40
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Molinari JE, Wachs IE. Presence of Surface Vanadium Peroxo-oxo Umbrella Structures in Supported Vanadium Oxide Catalysts: Fact or Fiction? J Am Chem Soc 2010; 132:12559-61. [DOI: 10.1021/ja105392g] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Julie E. Molinari
- Operando Molecular Spectroscopy & Catalysis Laboratory, Department of Chemical Engineering, Lehigh University, Bethlehem, Pennsylvania 18015
| | - Israel E. Wachs
- Operando Molecular Spectroscopy & Catalysis Laboratory, Department of Chemical Engineering, Lehigh University, Bethlehem, Pennsylvania 18015
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41
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Walther KL, Kümmerlen J, Wokaun A, Baiker A. Characterization of Vanadia/Silica Mixed Gel Catalysts by 51V and 29Si CP/MAS Solid State NMR Spectroscopy. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/bbpc.19930970605] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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42
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Truflandier LA, Boucher F, Payen C, Hajjar R, Millot Y, Bonhomme C, Steunou N. DFT-NMR Investigation and 51V 3QMAS Experiments for Probing Surface OH Ligands and the Hydrogen-Bond Network in a Polyoxovanadate Cluster: The Case of Cs4[H2V10O28]·4H2O. J Am Chem Soc 2010; 132:4653-68. [DOI: 10.1021/ja908973y] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Lionel A. Truflandier
- Institut des Matériaux Jean Rouxel (IMN), Université de Nantes, UMR CNRS 6502, 2 rue de la Houssinière, BP 32229, 44340 Nantes Cedex 3, France, Laboratoire des Systèmes Interfaciaux à l’Echelle Nanométrique (SIEN), UMR CNRS 7142, UPMC Univ Paris 06, 4 place Jussieu, 75252 Paris Cedex 05, France, and Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), UMR CNRS 7574, UPMC Univ Paris 06, Collège de France, 11 place Marcelin Berthelot, 75231 Paris Cedex 05, France
| | - Florent Boucher
- Institut des Matériaux Jean Rouxel (IMN), Université de Nantes, UMR CNRS 6502, 2 rue de la Houssinière, BP 32229, 44340 Nantes Cedex 3, France, Laboratoire des Systèmes Interfaciaux à l’Echelle Nanométrique (SIEN), UMR CNRS 7142, UPMC Univ Paris 06, 4 place Jussieu, 75252 Paris Cedex 05, France, and Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), UMR CNRS 7574, UPMC Univ Paris 06, Collège de France, 11 place Marcelin Berthelot, 75231 Paris Cedex 05, France
| | - Christophe Payen
- Institut des Matériaux Jean Rouxel (IMN), Université de Nantes, UMR CNRS 6502, 2 rue de la Houssinière, BP 32229, 44340 Nantes Cedex 3, France, Laboratoire des Systèmes Interfaciaux à l’Echelle Nanométrique (SIEN), UMR CNRS 7142, UPMC Univ Paris 06, 4 place Jussieu, 75252 Paris Cedex 05, France, and Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), UMR CNRS 7574, UPMC Univ Paris 06, Collège de France, 11 place Marcelin Berthelot, 75231 Paris Cedex 05, France
| | - Redouane Hajjar
- Institut des Matériaux Jean Rouxel (IMN), Université de Nantes, UMR CNRS 6502, 2 rue de la Houssinière, BP 32229, 44340 Nantes Cedex 3, France, Laboratoire des Systèmes Interfaciaux à l’Echelle Nanométrique (SIEN), UMR CNRS 7142, UPMC Univ Paris 06, 4 place Jussieu, 75252 Paris Cedex 05, France, and Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), UMR CNRS 7574, UPMC Univ Paris 06, Collège de France, 11 place Marcelin Berthelot, 75231 Paris Cedex 05, France
| | - Yannick Millot
- Institut des Matériaux Jean Rouxel (IMN), Université de Nantes, UMR CNRS 6502, 2 rue de la Houssinière, BP 32229, 44340 Nantes Cedex 3, France, Laboratoire des Systèmes Interfaciaux à l’Echelle Nanométrique (SIEN), UMR CNRS 7142, UPMC Univ Paris 06, 4 place Jussieu, 75252 Paris Cedex 05, France, and Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), UMR CNRS 7574, UPMC Univ Paris 06, Collège de France, 11 place Marcelin Berthelot, 75231 Paris Cedex 05, France
| | - Christian Bonhomme
- Institut des Matériaux Jean Rouxel (IMN), Université de Nantes, UMR CNRS 6502, 2 rue de la Houssinière, BP 32229, 44340 Nantes Cedex 3, France, Laboratoire des Systèmes Interfaciaux à l’Echelle Nanométrique (SIEN), UMR CNRS 7142, UPMC Univ Paris 06, 4 place Jussieu, 75252 Paris Cedex 05, France, and Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), UMR CNRS 7574, UPMC Univ Paris 06, Collège de France, 11 place Marcelin Berthelot, 75231 Paris Cedex 05, France
| | - Nathalie Steunou
- Institut des Matériaux Jean Rouxel (IMN), Université de Nantes, UMR CNRS 6502, 2 rue de la Houssinière, BP 32229, 44340 Nantes Cedex 3, France, Laboratoire des Systèmes Interfaciaux à l’Echelle Nanométrique (SIEN), UMR CNRS 7142, UPMC Univ Paris 06, 4 place Jussieu, 75252 Paris Cedex 05, France, and Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), UMR CNRS 7574, UPMC Univ Paris 06, Collège de France, 11 place Marcelin Berthelot, 75231 Paris Cedex 05, France
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Jermy BR, Kim SY, Bineesh KV, Selvaraj M, Song SK, Ryu JW, Park DW. Direct incorporation of vanadium into three-dimensional KIT-6: 2. Reactivity test for styrene oxidation. KOREAN J CHEM ENG 2010. [DOI: 10.1007/s11814-009-0202-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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44
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Li G, Hu D, Xia G, Zhang ZC. Catalyst Structure-Performance Relationship Identified by High-Throughput Operando Method: New Insight for Silica-Supported Vanadium Oxide for Methanol Oxidation. Top Catal 2009. [DOI: 10.1007/s11244-009-9437-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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45
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Nakka L, Molinari JE, Wachs IE. Surface and Bulk Aspects of Mixed Oxide Catalytic Nanoparticles: Oxidation and Dehydration of CH3OH by Polyoxometallates. J Am Chem Soc 2009; 131:15544-54. [DOI: 10.1021/ja904957d] [Citation(s) in RCA: 78] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lingaiah Nakka
- Operando Molecular Spectroscopy & Catalysis Laboratory, Chemical Engineering Department, Lehigh University, Bethlehem, Pennsylvania 18015
| | - Julie E. Molinari
- Operando Molecular Spectroscopy & Catalysis Laboratory, Chemical Engineering Department, Lehigh University, Bethlehem, Pennsylvania 18015
| | - Israel E. Wachs
- Operando Molecular Spectroscopy & Catalysis Laboratory, Chemical Engineering Department, Lehigh University, Bethlehem, Pennsylvania 18015
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46
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Nakashima TT, Teymoori R, Wasylishen RE. Using hyperbolic secant pulses to assist characterization of chemical shift tensors for half-integer spin quadrupolar nuclei in MAS powder samples. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2009; 47:465-471. [PMID: 19274677 DOI: 10.1002/mrc.2413] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Determination of the NMR anisotropic magnetic shielding parameters from magic angle spinning, MAS, powder samples containing half-integer spin quadrupolar nuclei is achieved by analysis of the difference spectrum obtained with and without application of a hyperbolic secant pulse. Application of a hyperbolic secant pulse to any spinning sideband associated with the central transition, m(I) = 1/2 to m(I) = - 1/2, results in 'saturation' of the entire central transition manifold. Similarly, if one spinning sideband associated with the m(I) = 3/2 to m(I) = 1/2 and m(I) = - 1/2 to m(I) = - 3/2 satellite transitions is perturbed, the entire satellite manifold associated with these transitions is 'saturated' while the central transition is enhanced by population transfer. Three 'difference spectrum' techniques are employed to selectively yield the spinning sidebands associated predominantly from the central transition. The success of these difference techniques is first demonstrated by examining (51)V NMR spectra of three metavanadate salts and (59)Co NMR spectra of Co(acac)(3). The vanadium and cobalt chemical shift tensors in these compounds have spans between 400 and 1400 ppm. Because the hyperbolic secant techniques proposed here yielded results that are in good agreement with earlier reports, they have been applied to characterize the (51)V chemical shift tensor of the dimer of bis(N, N-dimethylhydroxamido)-hydroxooxovanadate, {V(O)(ONMe(2))(2)}(2)O, whose chemical shift tensor has not been previously reported.
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Affiliation(s)
- Thomas T Nakashima
- Department of Chemistry, Gunning/Lemieux Chemistry Centre, University of Alberta, Edmonton, Alberta, Canada T6G 2G2, Canada
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47
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Kim HS, Stair PC. Resonance Raman Spectroscopic Study of Alumina-Supported Vanadium Oxide Catalysts with 220 and 287 nm Excitation. J Phys Chem A 2009; 113:4346-55. [DOI: 10.1021/jp811019c] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Hack-Sung Kim
- Department of Chemistry, Center for Catalysis and Surface Science and Institute for Catalysis and Energy Processes, Northwestern University, Evanston, Illinois 60208, and Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439
| | - Peter C. Stair
- Department of Chemistry, Center for Catalysis and Surface Science and Institute for Catalysis and Energy Processes, Northwestern University, Evanston, Illinois 60208, and Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439
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48
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Bineesh KV, Kim SY, Jermy BR, Park DW. Catalytic performance of vanadia-doped titania-pillared clay for the selective catalytic oxidation of H2S. J IND ENG CHEM 2009. [DOI: 10.1016/j.jiec.2008.10.006] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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49
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Ross-Medgaarden EI, Wachs IE, Knowles WV, Burrows A, Kiely CJ, Wong MS. Tuning the Electronic and Molecular Structures of Catalytic Active Sites with Titania Nanoligands. J Am Chem Soc 2008; 131:680-7. [DOI: 10.1021/ja711456c] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Elizabeth I. Ross-Medgaarden
- Operando Molecular Spectroscopy and Catalysis Laboratory, Department of Chemical Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, Department of Chemical and Bimolecular Engineering, Rice University, Houston, Texas 77005, Departments of Materials Science and Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, and Department of Chemistry, Rice University, Houston, Texas 77005
| | - Israel E. Wachs
- Operando Molecular Spectroscopy and Catalysis Laboratory, Department of Chemical Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, Department of Chemical and Bimolecular Engineering, Rice University, Houston, Texas 77005, Departments of Materials Science and Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, and Department of Chemistry, Rice University, Houston, Texas 77005
| | - William V. Knowles
- Operando Molecular Spectroscopy and Catalysis Laboratory, Department of Chemical Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, Department of Chemical and Bimolecular Engineering, Rice University, Houston, Texas 77005, Departments of Materials Science and Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, and Department of Chemistry, Rice University, Houston, Texas 77005
| | - Andrew Burrows
- Operando Molecular Spectroscopy and Catalysis Laboratory, Department of Chemical Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, Department of Chemical and Bimolecular Engineering, Rice University, Houston, Texas 77005, Departments of Materials Science and Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, and Department of Chemistry, Rice University, Houston, Texas 77005
| | - Christopher J. Kiely
- Operando Molecular Spectroscopy and Catalysis Laboratory, Department of Chemical Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, Department of Chemical and Bimolecular Engineering, Rice University, Houston, Texas 77005, Departments of Materials Science and Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, and Department of Chemistry, Rice University, Houston, Texas 77005
| | - Michael S. Wong
- Operando Molecular Spectroscopy and Catalysis Laboratory, Department of Chemical Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, Department of Chemical and Bimolecular Engineering, Rice University, Houston, Texas 77005, Departments of Materials Science and Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, and Department of Chemistry, Rice University, Houston, Texas 77005
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50
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Bineesh K, Cho D, Kim S, Jermy B, Park D. Vanadia-doped titania-pillared montmorillonite clay for the selective catalytic oxidation of H2S. CATAL COMMUN 2008. [DOI: 10.1016/j.catcom.2008.03.048] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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