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Molecular Design of Bisphosphonates To Adjust Their Reactivity toward Metal Sources for the Surfactant-Assisted Synthesis of Mesoporous Films. Angew Chem Int Ed Engl 2017; 56:13459-13463. [DOI: 10.1002/anie.201707225] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2017] [Indexed: 11/07/2022]
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Kimura T. Molecular Design of Bisphosphonates To Adjust Their Reactivity toward Metal Sources for the Surfactant-Assisted Synthesis of Mesoporous Films. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201707225] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Tatsuo Kimura
- Inorganic Functional Materials Research Institute; National Institute of Advanced Industrial Science and Technology (AIST); Shimoshidami, Moriyama-ku Nagoya 463-8560 Japan
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Rownaghi AA, Rezaei F, Labreche Y, Brennan PJ, Johnson JR, Li FS, Koros WJ. In situ Formation of a Monodispersed Spherical Mesoporous Nanosilica-Torlon Hollow-Fiber Composite for Carbon Dioxide Capture. CHEMSUSCHEM 2015; 8:3439-3450. [PMID: 26355795 DOI: 10.1002/cssc.201500906] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Indexed: 06/05/2023]
Abstract
We describe a new template-free method for the in situ formation of a monodispersed spherical mesoporous nanosilica-Torlon hollow-fiber composite. A thin layer of Torlon hollow fiber that comprises silica nanoparticles was created by the in situ extrusion of a tetraethyl orthosilicate/N-methyl-2-pyrrolidone solution in a sheath layer and a Torlon polymer dope in a core support layer. This new method can be integrated easily into current hollow-fiber composite fabrication processes. The hollow-fiber composites were then functionalized with 3-aminopropyltrimethoxy silane (APS) and evaluated for their CO2 -capture performance. The resulting APS-functionalized mesoporous silica nanoparticles/Torlon hollow fibers exhibited a high CO2 equilibrium capacity of 1.5 and 1.9 mmol g(-1) at 35 and 60 °C, respectively, which is significantly higher than values for fiber sorbents without nanoparticles reported previously.
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Affiliation(s)
- Ali A Rownaghi
- Department of Chemical and Biochemical Engineering, Missouri University of Science and Technology, 110 N State, St. Rolla, MO, 65409, USA.
| | - Fateme Rezaei
- Department of Chemical and Biochemical Engineering, Missouri University of Science and Technology, 110 N State, St. Rolla, MO, 65409, USA
| | - Ying Labreche
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Dr. NW, Atlanta, GA, 30332, USA
| | - Patrick J Brennan
- Department of Chemical and Biochemical Engineering, Missouri University of Science and Technology, 110 N State, St. Rolla, MO, 65409, USA
| | - Justin R Johnson
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Dr. NW, Atlanta, GA, 30332, USA
| | - Fuyue Stephanie Li
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Dr. NW, Atlanta, GA, 30332, USA
| | - William J Koros
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Dr. NW, Atlanta, GA, 30332, USA.
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König R, Scholz G, Bertram R, Kemnitz E. Crystalline aluminium hydroxy fluorides—Suitable reference compounds for 19F chemical shift trend analysis of related amorphous solids. J Fluor Chem 2008. [DOI: 10.1016/j.jfluchem.2008.04.015] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Guo Y, Mylonakis A, Zhang Z, Yang G, Lelkes P, Che S, Lu Q, Wei Y. Templated Synthesis of Electroactive Periodic Mesoporous Organosilica Bridged with Oligoaniline. Chemistry 2008; 14:2909-17. [DOI: 10.1002/chem.200701605] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Kuge H, Hagiwara Y, Shimojima A, Kuroda K. Oligomeric Alkoxysilanes with Cagelike Hybrids as Cores: Designed Precursors of Nanohybrid Materials. Chem Asian J 2008; 3:600-606. [DOI: 10.1002/asia.200700242] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Suzuki J, Shimojima A, Fujimoto Y, Kuroda K. Stable Silanetriols That Containtert-Alkoxy Groups: Versatile Precursors of Siloxane-Based Nanomaterials. Chemistry 2008; 14:973-80. [DOI: 10.1002/chem.200700914] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Liang YY, Zhang LM, Jiang W, Li W. Embedding Magnetic Nanoparticles into Polysaccharide-Based Hydrogels for Magnetically Assisted Bioseparation. Chemphyschem 2007; 8:2367-72. [DOI: 10.1002/cphc.200700359] [Citation(s) in RCA: 90] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Niederberger M, Garnweitner G. Organic reaction pathways in the nonaqueous synthesis of metal oxide nanoparticles. Chemistry 2007; 12:7282-302. [PMID: 16927442 DOI: 10.1002/chem.200600313] [Citation(s) in RCA: 401] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Nonaqueous-solution routes to metal oxide nanoparticles are a valuable alternative to the known aqueous sol-gel processes, offering advantages such as high crystallinity at low temperatures, robust synthesis parameters and ability to control the crystal growth without the use of surfactants. In the first part of the review we give a detailed overview of the various solution routes to metal oxides in organic solvents, with a strong focus on surfactant-free processes. In most of these synthesis approaches, the organic solvent plays the role of the reactant that provides the oxygen for the metal oxide, controls the crystal growth, influences particle shape, and, in some cases, also determines the assembly behavior. We have a closer look at the following reaction systems in this order: 1) metal halides in alcohols, 2) metal alkoxides, acetates, and acetylacetonates in alcohols, 3) metal alkoxides in ketones, and 4) metal acetylacetonates in benzylamine. All these systems offer some peculiarities with respect to each other, providing many possibilities to control and tailor the particle size and shape, as well as the surface and assembly properties. In the second part we present general mechanistic principles for aqueous and nonaqueous sol-gel processes, followed by the discussion of reaction pathways relevant for nanoparticle formation in organic solvents. Depending on the system several mechanisms have been postulated: 1) alkyl halide elimination, 2) elimination of organic ethers, 3) ester elimination, 4) C--C bond formation between benzylic alcohols and alkoxides, 5) ketimine and aldol-like condensation reactions, 6) oxidation of metal nanoparticles, and 7) thermal decomposition methods.
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Affiliation(s)
- Markus Niederberger
- Max Planck Institute of Colloids and Interfaces, Colloid Chemistry, Research Campus Golm, 14424 Potsdam, Germany.
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Ru- and Fe-based N,N′-bis(2-pyridylmethyl)-N-methyl-(1S,2S)-1,2-cyclohexanediamine complexes immobilised on mesoporous MCM-41: Synthesis, characterization and catalytic applications. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.molcata.2007.01.037] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Moreau JJE, Vellutini L, Wong Chi Man M, Bied C, Dieudonné P, Bantignies JL, Sauvajol JL. Lamellar bridged silsesquioxanes: self-assembly through a combination of hydrogen bonding and hydrophobic interactions. Chemistry 2006; 11:1527-37. [PMID: 15662678 DOI: 10.1002/chem.200401012] [Citation(s) in RCA: 94] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The synthesis of four bis(trialkoxysilylated) organic molecules capable of self-assembly--(EtO)3Si(CH2)3NHCONH-(CH2)n-NHCONH(CH2)3Si(OEt)3 (n = 9-12)--associating urea functional groups and alkylidene chains of variable length is described. These compounds behave as organogelators, forming supramolecular assemblies thanks to the intermolecular hydrogen bonding of urea groups. Whereas fluoride ion-catalysed hydrolysis in ethanol in the presence of a stoichiometric amount of water produced amorphous hybrids, acid-catalysed hydrolysis in an excess of water gave rise to the formation of crystalline lamellar hybrid materials through a self-organisation process. The structural features of these nanostructured organic/inorganic hybrids were analysed by several techniques: attenuated Fourier transformed infrared (ATR-FTIR), solid-state NMR spectroscopy (13C and 29Si), scanning and transmission electron microscopy (SEM and TEM) and powder X-ray diffraction (PXRD). The reaction conditions, the hydrophobic properties of the long alkylidene chains and the hydrogen-bonding properties of the urea groups are determining factors in the formation of these self-assembled nanostructured hybrid silicas.
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Affiliation(s)
- Joël J E Moreau
- Hétérochimie Moléculaire et Macromoléculaire (UMR-CNRS 5076), Ecole Nationale Supérieure de Chimie de Montpellier, 8, rue de l'école normale 34296 Montpellier cédex 5, France.
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Fujdala KL, Tilley TD. Synthesis and Characterization of Et2NM{OB[OSi(OtBu)3]2}3 (M = Zr, Hf) Molecular Precursors to Zr/B/Si/O and Hf/B/Si/O Materials. Z Anorg Allg Chem 2005. [DOI: 10.1002/zaac.200500128] [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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Gelation with Small Molecules: from Formation Mechanism to NanostructureArchitecture. Top Curr Chem (Cham) 2005; 256:1-37. [DOI: 10.1007/b107170] [Citation(s) in RCA: 100] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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From solid–fluid interfacial structure to nucleation kinetics: Principles and strategies for micro/nanostructure engineering. NANOSTRUCTURE SCIENCE AND TECHNOLOGY 2004. [DOI: 10.1007/978-1-4419-9046-4_5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Jitianu A, Gartner M, Zaharescu M, Cristea D, Manea E. Experiments for inorganic–organic hybrid sol–gel films for micro- and nano-photonics. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2003. [DOI: 10.1016/s0928-4931(02)00245-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Xiang S, Zhang Y, Xin Q, Li C. Asymmetric Epoxidation of Allyl Alcohol on Organic-Inorganic Hybrid Chiral Catalysts Grafted onto the Surface of Silica and in the Mesopores of MCM-41. Angew Chem Int Ed Engl 2002. [DOI: 10.1002/1521-3757(20020301)114:5<849::aid-ange849>3.0.co;2-o] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Abstract
Some methyl 4,6-O-benzylidene monosaccharides can act as strong low molecular weight gelators for various organic solvents. As they are accessible in a variety of homologues, each with a unique molecular architecture, they can be used for systematic studies of gelation phenomena. Structural details of their hydrogen-bond-based fiber network in the gel phase can be resolved by small angle X-ray scattering (SAXS). Analysis of the molecular arrangement in a single crystal can be a valuable tool for the prediction of gelation ability presupposing that the elongated shape of the gel fibers arises from an anisotropic assembly of the gelator molecules into one-dimensional aggregates. It is found that some derivatives act as "supergelators", which can gelate hydrocarbon solvents with 0.03-0.05 wt%. The recent results emerging from these investigations will be outlined in this article.
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Affiliation(s)
- O Gronwald
- Chemotransfiguration Project, Japan Science and Technology Corporation, Kurume, Fukuoka, Japan
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Boury B, Ben F, Corriu RJP. Hydrolytische-Polykondensation von Festkörpern zur Herstellung von kristallinen Hybrid-Materialien auf Silicatbasis. Angew Chem Int Ed Engl 2001. [DOI: 10.1002/1521-3757(20010803)113:15<2946::aid-ange2946>3.0.co;2-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Boury B, Ben F, Corriu RJP. Hydrolysis/Polycondensation in the Solid State: Access to Crystalline Silica-Based Hybrid Materials. Angew Chem Int Ed Engl 2001; 40:2853-2856. [DOI: 10.1002/1521-3773(20010803)40:15<2853::aid-anie2853>3.0.co;2-j] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2001] [Indexed: 11/07/2022]
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Braunstein P, Kormann HP, Meyer-Zaika W, Pugin R, Schmid G. Strategies for the anchoring of metal complexes, clusters, and colloids inside nanoporous alumina membranes. Chemistry 2000; 6:4637-46. [PMID: 11192098 DOI: 10.1002/1521-3765(20001215)6:24<4637::aid-chem4637>3.0.co;2-a] [Citation(s) in RCA: 73] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Two complementary strategies are presented for the anchoring of molecular palladium complexes, of cobalt or platinum clusters or of gold colloids inside the nanopores of alumina membranes. The first consists in the one step condensation of an alkoxysilyl functional group carried by the metal complex with the hydroxy groups covering the surface of the membrane pores. Thus, using the short-bite alkoxysilyl-functionalized diphosphane ligands (Ph2P)2N(CH2)3Si(OMe)3 (1) and (Ph2P)2N(CH2)4SiMe2(OMe)] (2) derived from (Ph2P)2NH (dppa) (dppa bis(diphenylphosphanyl)amine), the palladium complexes [Pd(dmba)(kappa2-P,P-(Ph2P)2N(CH2)3Si(OMe)3)] Cl (3) and [Pd(dmba)[kappa2-P,P-(Ph2P)2N(CH2)4SiMe2(OMe)]]Cl (4) (dmba-H = dimethylbenzylamine). respectively, were tethered to the pore walls. After controlled thermal treatment. confined and highly dispersed palladium nanoparticles were formed and characterized by transmission electron microscopy (TEM). This method could not be applied to the cobalt cluster [Co4(CO)8(mu-dppa)[mu-P,P-(Ph2P)2N(CH2)4SiMe2(OMe)]] (7) owing to its too limited solubility. However, its anchoring was achieved by using the second method which consisted of first derivatizing the pore walls with 1 or 2. The covalent attachment of the diphosphane ligands provides a molecular anchor that allows subsequent reaction with the cluster [Co4(CO)10(mu-dppa)] 6 to generate anchored 7 and this step was monitored by UV/Vis spectroscopy. In addition, the presence of carbonyl ligands in the cluster provides for the first time a very sensitive spectroscopic probe in the IR region which confirms both cluster incorporation and the retaining of its molecular nature inside the membrane. The presence of the bridging dppa ligand in 6 provides additional stabilization and accounts for the selectivity of the procedure. Using this method, platinum clusters (diameter ca. 2 nm) and gold colloids (diameter ca. 13 nm) were immobilized after passing their solution through the functionalized membrane pores. The resulting membranes were characterized by TEM which demonstrated the efficiency of the complexation and showed the high dispersion of the metal loading. The successful application of these methods has demonstrated that nanoporous alumina membranes are not only unique supports to incorporate metal complexes, clusters, or colloids but can also be regarded as functional matrices or microreactors, thus opening new fields for applications.
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Affiliation(s)
- P Braunstein
- Laboratoire de Chimie de Coordination, UMR 7513 CNRS, Université Louis Pasteur, Strasbourg, France.
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Hunger M, Limberg C, Kircher P. Syntheses of Heteronuclear Molybdenum/Bismuth Alkoxides Stabilized by Organic Ligands. Organometallics 2000. [DOI: 10.1021/om9908229] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Marc Hunger
- Universität Heidelberg, Anorganisch-Chemisches Institut, Im Neuenheimer Feld 270, D-69120 Heidelberg
| | - Christian Limberg
- Universität Heidelberg, Anorganisch-Chemisches Institut, Im Neuenheimer Feld 270, D-69120 Heidelberg
| | - Peter Kircher
- Universität Heidelberg, Anorganisch-Chemisches Institut, Im Neuenheimer Feld 270, D-69120 Heidelberg
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Mayer C, Cabuil V, Lalot T, Thouvenot R. Einbau von magnetischen Nanopartikeln in neue Hybridnetze auf der Basis von Heteropolyanionen und Polyacrylamid. Angew Chem Int Ed Engl 1999. [DOI: 10.1002/(sici)1521-3757(19991216)111:24<3878::aid-ange3878>3.0.co;2-d] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Boury B, Corriu R, Le Strat V, Delord P, Nobili M. Nanostrukturierte organisch-anorganische Hybridmaterialien auf Kieselsäurebasis – Nachweis der Selbstorganisation eines über Sol-Gel-Polymerisation zugänglichen Xerogels. Angew Chem Int Ed Engl 1999. [DOI: 10.1002/(sici)1521-3757(19991102)111:21<3366::aid-ange3366>3.0.co;2-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Lindner E, Schneller T, Auer F, Mayer HA. Chemie in Interphasen – ein neuer Weg für die metallorganische Synthese und Katalyse. Angew Chem Int Ed Engl 1999. [DOI: 10.1002/(sici)1521-3757(19990802)111:15<2288::aid-ange2288>3.0.co;2-a] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Hunger M, Limberg C, Kircher P. Synthese und Koordinationseigenschaften von Molybdocenalkoxiden – das erste Heterodimetallalkoxid mit Molybdän und Bismut. Angew Chem Int Ed Engl 1999. [DOI: 10.1002/(sici)1521-3757(19990419)111:8<1171::aid-ange1171>3.0.co;2-i] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Lindner E, Schneller T, Auer F, Wegner P, Mayer HA. Stoichiometric and Catalytic Reactions of the Polysiloxane-Bound (Ether-Phosphine)Rhodium(I) Complex [ClRh(PO)(P ∼ O)] in Interphases. Chemistry 1997. [DOI: 10.1002/chem.19970031116] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Gabriel AO, Riedel R. Nichtoxidische Silicium-Keramiken über einen wasserfreien Sol-Gel-Prozeß. Angew Chem Int Ed Engl 1997. [DOI: 10.1002/ange.19971090411] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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