1
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Tran NT, Patterson BA, Harris DE, Napadensky E, Lenhart JL, Knorr DB, Bain ED. Influence of Interfacial Bonding on the Mechanical and Impact Properties Ring-Opening Metathesis Polymer (ROMP) Silica Composites. ACS APPLIED MATERIALS & INTERFACES 2020; 12:53342-53355. [PMID: 33190488 DOI: 10.1021/acsami.0c16280] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Polymers formed by ring-opening metathesis polymerization (ROMP) such as poly(dicyclopentadiene) (pDCPD) exhibit a technologically desirable combination of high toughness, high glass transition temperature, and outstanding low-temperature performance. However, because of their nonpolar molecular structure, they tend to suffer from relatively low elastic moduli and poor adhesion to common fillers, fibers, and substrates, limiting their utility as adhesives and composite binders without specialized bonding agents. Here, we investigate the mechanical properties of a pDCPD-based copolymer filled with well-defined spherical microparticles having four distinct surface chemistries capable of strong, moderate, or weak bonding to the matrix with surfaces ranging from polar to nonpolar. Measurements in uniaxial tension, quasi-static fracture, and high-velocity impact are complemented by digital image correlation (DIC), scanning electron microscopy (SEM) fractography, and X-ray computed tomography (X-μCT) of subcritically loaded crack tips, yielding insight into the complex roles played by interfacial bonding in strength, stiffness, and toughening mechanisms of an already tough polymer. Analysis using quantitative fracture and impact mechanism models provided valuable guidelines for designing heterogeneous systems that combine structural and tough performance.
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Affiliation(s)
- Ngon T Tran
- Materials & Manufacturing Sciences Division, U.S. Army Research Laboratory Aberdeen Proving Ground, Maryland 21005, United States
| | - Brendan A Patterson
- Materials & Manufacturing Sciences Division, U.S. Army Research Laboratory Aberdeen Proving Ground, Maryland 21005, United States
| | - Douglas E Harris
- Materials & Manufacturing Sciences Division, U.S. Army Research Laboratory Aberdeen Proving Ground, Maryland 21005, United States
| | - Eugene Napadensky
- Materials & Manufacturing Sciences Division, U.S. Army Research Laboratory Aberdeen Proving Ground, Maryland 21005, United States
| | - Joseph L Lenhart
- Materials & Manufacturing Sciences Division, U.S. Army Research Laboratory Aberdeen Proving Ground, Maryland 21005, United States
| | - Daniel B Knorr
- Materials & Manufacturing Sciences Division, U.S. Army Research Laboratory Aberdeen Proving Ground, Maryland 21005, United States
| | - Erich D Bain
- Materials & Manufacturing Sciences Division, U.S. Army Research Laboratory Aberdeen Proving Ground, Maryland 21005, United States
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2
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Hu Y, Florek J, Larivière D, Fontaine F, Kleitz F. Recent Advances in the Separation of Rare Earth Elements Using Mesoporous Hybrid Materials. CHEM REC 2018; 18:1261-1276. [PMID: 29806123 PMCID: PMC6147058 DOI: 10.1002/tcr.201800012] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Accepted: 05/03/2018] [Indexed: 01/24/2023]
Abstract
Over the past decades, the need for rare earth elements (REEs) has increased substantially, mostly because these elements are used as valuable additives in advanced technologies. However, the difference in ionic radius between neighboring REEs is small, which renders an efficient sized-based separation extremely challenging. Among different types of extraction methods, solid-phase extraction (SPE) is a promising candidate, featuring high enrichment factor, rapid adsorption kinetics, reduced solvent consumption and minimized waste generation. The great challenge remains yet to develop highly efficient and selective adsorbents for this process. In this regard, ordered mesoporous materials (OMMs) possess high specific surface area, tunable pore size, large pore volume, as well as stable and interconnected frameworks with active pore surfaces for functionalization. Such features meet the requirements for enhanced adsorbents, not only providing huge reactional interface and large surface capable of accommodating guest species, but also enabling the possibility of ion-specific binding for enrichment and separation purposes. This short personal account summarizes some of the recent advances in the use of porous hybrid materials as selective sorbents for REE separation and purification, with particular attention devoted to ordered mesoporous silica and carbon-based sorbents.
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Affiliation(s)
- Yimu Hu
- Department of ChemistryUniversité LavalQuébecG1V 0A6, QCCanada
- Centre en Catalyse et Chimie Verte (C3V)Université Laval, QuébecG1V 0A6, QCCanada
| | - Justyna Florek
- Department of Inorganic Chemistry – Functional Materials, Faculty of ChemistryUniversity of Vienna1090ViennaAustria
| | - Dominic Larivière
- Department of ChemistryUniversité LavalQuébecG1V 0A6, QCCanada
- Centre en Catalyse et Chimie Verte (C3V)Université Laval, QuébecG1V 0A6, QCCanada
| | - Frédéric‐Georges Fontaine
- Department of ChemistryUniversité LavalQuébecG1V 0A6, QCCanada
- Centre en Catalyse et Chimie Verte (C3V)Université Laval, QuébecG1V 0A6, QCCanada
- Canada Research Chair in Green Catalysis and Metal-Free Processes
| | - Freddy Kleitz
- Department of Inorganic Chemistry – Functional Materials, Faculty of ChemistryUniversity of Vienna1090ViennaAustria
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3
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Xu W, Ollevier T, Kleitz F. Iron-Modified Mesoporous Silica as an Efficient Solid Lewis Acid Catalyst for the Mukaiyama Aldol Reaction. ACS Catal 2018. [DOI: 10.1021/acscatal.7b03485] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Wan Xu
- Département
de Chimie, Université Laval, 1045 Avenue de la Médecine, Québec, Québec G1V 0A6, Canada
| | - Thierry Ollevier
- Département
de Chimie, Université Laval, 1045 Avenue de la Médecine, Québec, Québec G1V 0A6, Canada
| | - Freddy Kleitz
- Département
de Chimie, Université Laval, 1045 Avenue de la Médecine, Québec, Québec G1V 0A6, Canada
- Department
of Inorganic Chemistry-Functional Materials, Faculty of Chemistry, University of Vienna, Währinger Straße 42, 1090 Vienna, Austria
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4
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Giret S, Hu Y, Masoumifard N, Boulanger JF, Kleitz F, Larivière D. Selective Separation and Preconcentration of Scandium with Mesoporous Silica. ACS APPLIED MATERIALS & INTERFACES 2018; 10:448-457. [PMID: 29181973 DOI: 10.1021/acsami.7b13336] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Separation and preconcentration of scandium (Sc) were successfully achieved using a mesoporous silica support that showed good selectivity for this element. Unmodified mesoporous silica materials were used as an extracting medium in a solid-liquid extraction (SLE) process. Selectivity, extraction capacity, kinetics of extraction, and reusability under acidic conditions were investigated. The results demonstrate the potential of unmodified mesoporous silica materials for the selective separation and preconcentration of Sc. As no chelating ligand was grafted on the silica surface, which is often the case for most solid-phase extraction media for metal-ion separation, the experimental data allow us to hypothesize that the accessible silanols on the material surface are responsible for the selective Sc extraction. This interesting feature would drastically decrease the cost of solid-liquid extraction systems by using unmodified mesoporous silica materials. Moreover, a leachate solution obtained from a real rare-earth element ore was used to determine the performances of the proposed materials in a packed column configuration. The maximum Sc adsorption on the silica material surfaces is moderate (1 mg/g), but it is balanced by a great concentration factor (more than 100 times). The extraction performances are potentially promising, both in terms of selectivity and preconcentration, under the acidic conditions tested.
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Affiliation(s)
| | | | | | | | - Freddy Kleitz
- Department of Inorganic Chemistry-Functional Materials, Faculty of Chemistry, University of Vienna , Währinger Straße 42, 1090 Vienna, Austria
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5
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Dewaele A, Van Berlo B, Dijkmans J, Jacobs PA, Sels BF. Immobilized Grubbs catalysts on mesoporous silica materials: insight into support characteristics and their impact on catalytic activity and product selectivity. Catal Sci Technol 2016. [DOI: 10.1039/c5cy01897h] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The ideal support characteristics for immobilization of the Hoveyda–Grubbs 2 catalyst were defined in the metathesis of cyclooctene and the reaction mechanism to cyclic oligomers was unraveled.
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Affiliation(s)
- Annelies Dewaele
- Center for Surface Chemistry and Catalysis
- KU Leuven
- 3001 Leuven
- Belgium
| | - Boris Van Berlo
- Center for Surface Chemistry and Catalysis
- KU Leuven
- 3001 Leuven
- Belgium
| | - Jan Dijkmans
- Center for Surface Chemistry and Catalysis
- KU Leuven
- 3001 Leuven
- Belgium
| | - Pierre A. Jacobs
- Center for Surface Chemistry and Catalysis
- KU Leuven
- 3001 Leuven
- Belgium
| | - Bert F. Sels
- Center for Surface Chemistry and Catalysis
- KU Leuven
- 3001 Leuven
- Belgium
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6
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Juère E, Florek J, Larivière D, Kim K, Kleitz F. Support effects in rare earth element separation using diglycolamide-functionalized mesoporous silica. NEW J CHEM 2016. [DOI: 10.1039/c5nj03147h] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The work aims at exploring the role of pore structure, texture and morphology of various DGA-functionalized mesoporous silica materials on their rare earth element (REE) adsorption performances, both in batch and flow-through systems.
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Affiliation(s)
- Estelle Juère
- Department of Chemistry
- Université Laval
- Québec
- Canada
- Centre de Recherche sur les Matériaux Avancés (CERMA)
| | - Justyna Florek
- Department of Chemistry
- Université Laval
- Québec
- Canada
- Centre de Recherche sur les Matériaux Avancés (CERMA)
| | - Dominic Larivière
- Department of Chemistry
- Université Laval
- Québec
- Canada
- Centre en Catalyse et Chimie Verte (C3V)
| | - Kyoungsoo Kim
- Center for Nanomaterials and Chemical Reactions
- Institute for Basic Science (IBS)
- Daejeon 305-701
- Republic of Korea
| | - Freddy Kleitz
- Department of Chemistry
- Université Laval
- Québec
- Canada
- Centre de Recherche sur les Matériaux Avancés (CERMA)
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7
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Florek J, Giret S, Juère E, Larivière D, Kleitz F. Functionalization of mesoporous materials for lanthanide and actinide extraction. Dalton Trans 2016; 45:14832-54. [DOI: 10.1039/c6dt00474a] [Citation(s) in RCA: 107] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Recent advances in the field of functionalized mesoporous solid-phase sorbents designed for rare earth element and actinide separation/concentration could provide answers to limitations occurring in the industrial separation processes of these critical elements.
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Affiliation(s)
- Justyna Florek
- Université Laval
- Department of Chemistry
- Québec
- Canada
- Centre de Recherche sur les Matériaux Avancés (CERMA)
| | - Simon Giret
- Université Laval
- Department of Chemistry
- Québec
- Canada
- Centre de Recherche sur les Matériaux Avancés (CERMA)
| | - Estelle Juère
- Université Laval
- Department of Chemistry
- Québec
- Canada
- Centre de Recherche sur les Matériaux Avancés (CERMA)
| | - Dominic Larivière
- Université Laval
- Department of Chemistry
- Québec
- Canada
- Centre en Catalyse et Chimie Verte (C3V) Université Laval
| | - Freddy Kleitz
- Université Laval
- Department of Chemistry
- Québec
- Canada
- Centre de Recherche sur les Matériaux Avancés (CERMA)
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8
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Bérubé F, Khadraoui A, Florek J, Kaliaguine S, Kleitz F. A generalized method toward high dispersion of transition metals in large pore mesoporous metal oxide/silica hybrids. J Colloid Interface Sci 2015; 449:102-14. [DOI: 10.1016/j.jcis.2014.12.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2014] [Revised: 11/30/2014] [Accepted: 12/01/2014] [Indexed: 11/29/2022]
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9
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Pike SD, Weller AS. Organometallic synthesis, reactivity and catalysis in the solid state using well-defined single-site species. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2015; 373:rsta.2014.0187. [PMID: 25666064 PMCID: PMC4342974 DOI: 10.1098/rsta.2014.0187] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Acting as a bridge between the heterogeneous and homogeneous realms, the use of discrete, well-defined, solid-state organometallic complexes for synthesis and catalysis is a remarkably undeveloped field. Here, we present a review of this topic, focusing on describing the key transformations that can be observed at a transition-metal centre, as well as the use of well-defined organometallic complexes in the solid state as catalysts. There is a particular focus upon gas-solid reactivity/catalysis and single-crystal-to-single-crystal transformations.
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Affiliation(s)
- Sebastian D Pike
- Department of Chemistry, University of Oxford, Mansfield Road, Oxford UK1 3TA, UK
| | - Andrew S Weller
- Department of Chemistry, University of Oxford, Mansfield Road, Oxford UK1 3TA, UK
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10
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Li Q, Zhou T, Yang H. Encapsulation of Hoveyda–Grubbs2nd Catalyst within Yolk–Shell Structured Silica for Olefin Metathesis. ACS Catal 2015. [DOI: 10.1021/cs5015354] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Qibiao Li
- School of Chemistry and Chemical
Engineering, Shanxi University, Wucheng Road 92, Taiyuan, Shanxi 030006, People’s Republic of China
| | - Ting Zhou
- School of Chemistry and Chemical
Engineering, Shanxi University, Wucheng Road 92, Taiyuan, Shanxi 030006, People’s Republic of China
| | - Hengquan Yang
- School of Chemistry and Chemical
Engineering, Shanxi University, Wucheng Road 92, Taiyuan, Shanxi 030006, People’s Republic of China
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11
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Braunschweig H, Damme A, Dewhurst RD, Kelch H, Macha BB, Radacki K, Vargas A, Ye Q. Platinumtrans-Bis(borirene) Complexes Displaying Coplanarity and Communication Across a Platinum Metal Center. Chemistry 2014; 21:2377-86. [DOI: 10.1002/chem.201405803] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Indexed: 11/05/2022]
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12
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Luo L, Liu C, Hou Z, Wang Y, Dai L. Dihydrobenzofuran production from catalytic tandem Claisen rearrangement–intramolecular hydroaryloxylation of allyl phenyl ethers in subcritical water. RSC Adv 2014. [DOI: 10.1039/c4ra04689g] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The one pot rapid and high-yielding Claisen hydroaryloxylation of allyl phenyl ethers in subcritical water is described (see scheme).
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Affiliation(s)
- Ligang Luo
- Department of Chemistry
- East China Normal University
- 200062 Shanghai, China
| | - Chunze Liu
- Department of Chemistry
- East China Normal University
- 200062 Shanghai, China
| | - Zhiqiang Hou
- Department of Chemistry
- East China Normal University
- 200062 Shanghai, China
| | - Yuanyuan Wang
- Department of Chemistry
- East China Normal University
- 200062 Shanghai, China
| | - Liyi Dai
- Department of Chemistry
- East China Normal University
- 200062 Shanghai, China
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13
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Hoveyda–Grubbs first generation type catalyst immobilized on mesoporous molecular sieves. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.molcata.2013.06.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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14
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Balcar H, Čejka J. Mesoporous molecular sieves as advanced supports for olefin metathesis catalysts. Coord Chem Rev 2013. [DOI: 10.1016/j.ccr.2013.07.026] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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15
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Herndon JW. The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2011. Coord Chem Rev 2013. [DOI: 10.1016/j.ccr.2013.05.011] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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16
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Bru M, Dehn R, Teles JH, Deuerlein S, Danz M, Müller IB, Limbach M. Ruthenium Carbenes Supported on Mesoporous Silicas as Highly Active and Selective Hybrid Catalysts for Olefin Metathesis Reactions under Continuous Flow. Chemistry 2013; 19:11661-71. [DOI: 10.1002/chem.201203893] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2012] [Revised: 05/28/2013] [Indexed: 11/08/2022]
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17
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Grubbs-type catalysts immobilized on SBA-15: A novel heterogeneous catalyst for olefin metathesis. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.molcata.2013.01.034] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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18
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Elbert J, Mersini J, Vilbrandt N, Lederle C, Kraska M, Gallei M, Stühn B, Plenio H, Rehahn M. Reversible Activity Modulation of Surface-Attached Grubbs Second Generation Type Catalysts Using Redox-Responsive Polymers. Macromolecules 2013. [DOI: 10.1021/ma4007126] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Johannes Elbert
- Ernst-Berl Institute for Chemical Engineering and Macromolecular
Science, Darmstadt University of Technology, Petersenstraße 22, D-64287 Darmstadt, Germany
| | - Jetmire Mersini
- Organometallic Chemistry, Darmstadt University of Technology, Petersenstraße
18, D-64287 Darmstadt, Germany
| | - Nicole Vilbrandt
- Ernst-Berl Institute for Chemical Engineering and Macromolecular
Science, Darmstadt University of Technology, Petersenstraße 22, D-64287 Darmstadt, Germany
| | - Christina Lederle
- Institute of Condensed Matter Physics, Darmstadt University of Technology, Hochschulstraße 8, D-64289 Darmstadt,
Germany
| | - Martin Kraska
- Institute of Condensed Matter Physics, Darmstadt University of Technology, Hochschulstraße 8, D-64289 Darmstadt,
Germany
| | - Markus Gallei
- Ernst-Berl Institute for Chemical Engineering and Macromolecular
Science, Darmstadt University of Technology, Petersenstraße 22, D-64287 Darmstadt, Germany
| | - Bernd Stühn
- Institute of Condensed Matter Physics, Darmstadt University of Technology, Hochschulstraße 8, D-64289 Darmstadt,
Germany
| | - Herbert Plenio
- Organometallic Chemistry, Darmstadt University of Technology, Petersenstraße
18, D-64287 Darmstadt, Germany
| | - Matthias Rehahn
- Ernst-Berl Institute for Chemical Engineering and Macromolecular
Science, Darmstadt University of Technology, Petersenstraße 22, D-64287 Darmstadt, Germany
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Monge-Marcet A, Pleixats R, Cattoën X, Wong Chi Man M. Catalytic applications of recyclable silica immobilized NHC–ruthenium complexes. Tetrahedron 2013. [DOI: 10.1016/j.tet.2012.10.023] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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20
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Cabrera J, Padilla R, Bru M, Lindner R, Kageyama T, Wilckens K, Balof SL, Schanz HJ, Dehn R, Teles JH, Deuerlein S, Müller K, Rominger F, Limbach M. Linker-free, silica-bound olefin-metathesis catalysts: applications in heterogeneous catalysis. Chemistry 2012; 18:14717-24. [PMID: 23019012 DOI: 10.1002/chem.201202248] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2012] [Indexed: 11/08/2022]
Abstract
A set of heterogenized olefin-metathesis catalysts, which consisted of Ru complexes with the H(2)ITap ligand (1,3-bis(2',6'-dimethyl-4'dimethyl aminophenyl)-4,5-dihydroimidazol-2-ylidene) that had been adsorbed onto a silica support, has been prepared. These complexes showed strong binding to the solid support without the need for tethering groups on the complex or functionalized silica. The catalysts were tested in the ring-opening-ring-closing-metathesis (RO-RCM) of cyclooctene (COE) and the self-metathesis of methyl oleate under continuous-flow conditions. The best complexes showed a TON>4000, which surpasses the previously reported materials that were either based on the Grubbs-Hoveyda II complex on silica or on the classical heterogeneous Re(2)O(7)/B(2)O(3) catalyst.
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Affiliation(s)
- José Cabrera
- Catalysis Research Laboratory, Heidelberg, Germany
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21
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Cabrera J, Padilla R, Dehn R, Deuerlein S, Gułajski Ł, Chomiszczak E, Teles JH, Limbach M, Grela K. Olefin Metathesis on a TLC Plate as a Tool for a High-Throughput Screening of Catalyst-Substrate Sets. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201100863] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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22
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Kim TW, Kim MJ, Kleitz F, Nair MM, Guillet-Nicolas R, Jeong KE, Chae HJ, Kim CU, Jeong SY. Tailor-Made Mesoporous Ti-SBA-15 Catalysts for Oxidative Desulfurization of Refractory Aromatic Sulfur Compounds in Transport Fuel. ChemCatChem 2012. [DOI: 10.1002/cctc.201100417] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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23
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Reichhardt NV, Guillet-Nicolas R, Thommes M, Klösgen B, Nylander T, Kleitz F, Alfredsson V. Mapping the location of grafted PNIPAAM in mesoporous SBA-15 silica using gas adsorption analysis. Phys Chem Chem Phys 2012; 14:5651-61. [DOI: 10.1039/c2cp22523a] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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