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Dissertations / Theses on the topic 'Mixed metal organic framework'

Author: Grafiati

Published: 6 September 2023

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1

Tahier, Tayyibah. "Crystal engineering of mixed-ligand metal-organic frameworks." Master's thesis, University of Cape Town, 2016. http://hdl.handle.net/11427/22913.

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Research of solid state complexes has grown and developed exponentially over the past few years in terms of supramolecular chemistry and crystal engineering. The synthesis and characterisation of metal organic frameworks (MOFs) have attracted widespread attention owing to their potential in various applications. This includes gas sorption, which could aid in alleviating serious environmental issues such as global warming by sequestrating greenhouse gases. Advances in the design of these materials using the mixed ligand approach add to variation in structures and thus provide a further me

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2

Gcwensa, Nolwazi. "Porosity studies of isoreticular mixed-ligand metal-organic frameworks." Master's thesis, Faculty of Science, 2019. http://hdl.handle.net/11427/31385.

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The syntheses of four novel mixed-ligand metal-organic frameworks (MOFs) are reported. Isoreticular, Zn(II)-based mixed-ligand MOFs with formulae [Zn(μ2-ia)(μ2-bpe)]n·nDMF (1) and [Zn(μ2-mia)(μ2- bpe)]n·nDMF (2), where ia = isophthalate, mia = 5-methoxyisophthalate, bpe = 1,2-bis(4-pyridyl)ethane and DMF = N,N’-dimethylformamide were synthesised and characterised. Both compounds 1 and 2 exhibit sql, 2-periodic, 2D net coordination layers. Catenation of neighbouring frameworks form 2-fold interpenetrated bilayers which are interdigitated resulting in channel voids containing DMF. Experimental v

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3

Mitchell, Laura. "Metal organic frameworks as Lewis acid catalysts." Thesis, University of St Andrews, 2014. http://hdl.handle.net/10023/6392.

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Lewis acids are widely used in the pharmaceutical industry, generally homogeneously, to perform reactions such as C-C or C=N bond formation and acetalisation. Typically, metal salts such as those of Ti, Fe and especially Sc are used, the last typically as the triflate. Metal organic frameworks (MOFs) containing such metals should act as heterogeneous, removable and reusable catalysts for similar reactions if they can be prepared in stable forms and with large, open pores and metal cation sites that can be rendered coordinatively unsaturated. Families of novel MOFs with different structure type

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4

Nayak, Nayan Nagesh. "Development of mixed matrix membranes with metal - organic framework and ionic liquids for biogas upgrading." Master's thesis, Faculdade de Ciências e Tecnologia, 2013. http://hdl.handle.net/10362/10419.

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Dissertation presented to Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa for obtaining the master degree in Membrane Engineering<br>The EM3E Master is an Education Programme supported by the European Commission, the European Membrane Society (EMS), the European Membrane House (EMH), and a large international network of industrial companies, research centers and universities

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5

Doheny, Patrick William. "Elucidation of the Properties of Electroactive Metal-Organic Framework Materials via a Combined Experimental and Computational Approach." Thesis, The University of Sydney, 2019. https://hdl.handle.net/2123/21894.

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The work presented in this dissertation details a systematic study of the fundamental and applied properties of electroactive metal-organic framework (MOF) materials from first design principles utilising a combined structural, electrochemical, spectroelectrochemical and computational approach. The structure-property relationships arising from the incorporation of organic-based electroactive ligands, specifically topology-driven through-space charge transfer and radical delocalisation, into a series of 3-dimensional MOF materials were investigated from both a fundamental and applied perspectiv

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6

Shahid, Salman. "Polymer-Metal Organic Frameworks (MOFs) Mixed Matrix Membranes For Gas Separation Applications." Thesis, Montpellier, 2015. http://www.theses.fr/2015MONTS141/document.

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Le comportement plastifiant de polymères purs a été bien étudié dans la littérature. Toutefois, il n'y a eu que peu d'études concernant les membranes à matrices mixtes (MMM). Dans le chapitre 2 de cette thèse, le comportement plastifiant de MMM préparés à partir de nanoparticules mésoporeuses Fe(BTC) et du polymère Matrimid® est étudié avec un gaz pur ou en mélange. Les réseaux métaux-organiques (MOF) sous forme particulaires ont présenté une relativement bonne compatibilité avec le polymère. L'incorporation de Fe(BTC) dans du Matrimid® a permis d'augmenter la perméabilité et la sélectivité de

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7

Benzaqui, Marvin. "Synthesis of Metal-Organic Framework nanoparticles and mixed-matrix membrane preparation for gas separation and CO2 capture." Thesis, Université Paris-Saclay (ComUE), 2017. http://www.theses.fr/2017SACLV075/document.

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La séparation CO2/N2 et H2/CO2 permet de limiter le rejet de CO2 dans l’atmosphère issu des gaz industriels et les membranes présentent de nombreux avantages tant sur le plan économique que pratique. Les membranes polymère sont faciles à mettre en forme mais un compromis entre perméabilité et sélectivité doit généralement être trouvé : pour améliorer les performances, des membranes à matrice mixte (MMM) incorporant des MOFs (matériaux hybrides poreux cristallisés) dispersés dans la phase polymère ont été proposées. A la différence des matériaux poreux inorganiques, les MOFs ont une meilleure c

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8

Khdhayyer, Muhanned. "Mixed matrix membranes comprising metal organic frameworks and high free volume polymers for gas separations." Thesis, University of Manchester, 2017. https://www.research.manchester.ac.uk/portal/en/theses/mixed-matrix-membranes-comprising-metal-organic-frameworks-and-high-free-volume-polymers-for-gas-separations(172f6a4f-a531-44ae-979c-bbbd170f33db).html.

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This research aimed to develop new composite membranes using a polymer of intrinsic microporosity (PIM-1) and metal organic frameworks (MOFs) for use in gas separations. PIM-1 was successfully synthesised using the high temperature method (40 min, 160 oC) and the resulting polymer was cast into membranes. PIM-1 membranes were chemically modified by reacting hexamethylenediamine (HMDA) with the nitrile group of PIM-1 to form HMDA-modified PIM-1 membranes. Surfaces of PIM-1 membranes were also modified by basic hydrolysis to form amide-modified PIM-1 membranes. These polymer materials were chara

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9

Mutti, Marcello. "Crystal engineering of mixed-ligand metal-organic frameworks based on simple carboxylate and bipyridyl ligands." Master's thesis, University of Cape Town, 2018. http://hdl.handle.net/11427/29726.

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Over the last few decades research in supramolecular chemistry and crystal engineering have seen an exponential growth. The synthesis of metal-organic frameworks (MOFs) has attracted much interest worldwide due to the possibility of obtaining a large variety of structures with a wide range of applications in fields pertaining to storage, separation and catalysis. This work focuses on the crystal engineering of MOFs based on mixed ligands which may ultimately be used in the gas storage of pollutants, greenhouse gases or fuel. Two novel 2D mixed-ligand MOFs, both based on manganese, 4,4’-bipyrid

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10

Adams, Ryan Thomas. "High molecular sieve loading mixed matrix membranes for gas separations." Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/39470.

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Traditional gas separation technologies are thermally-driven and can have adverse environmental and economic impacts. Gas separation membrane processes are not thermally-driven and have low capital and operational costs which make them attractive alternatives to traditional technologies. Polymers are easily processed into large, defect-free membrane modules which have made polymeric membranes the industrial standard; however, polymers show separation efficiency-productivity trade-offs and are often not thermally or chemically robust. Molecular sieves, such as zeolites, have gas separation p

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11

Motegi, Hirofumi. "Synthesis and Characterization of Crystalline Coordination Networks Constructed From Neutral Imidazole Containing Ligand and Rigid Aromatic Carboxylate." Diss., Virginia Tech, 2010. http://hdl.handle.net/10919/77201.

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The work is focused on the investigation of synthesis and structure of crystalline coordination networks by combining first a row transition metal ion with one anionic and one neutral bridging ligand. In the field of crystalline coordination networks, the goal is to synthesize porous 3D crystalline coordination networks with molecular sized cavities. The materials are characterized by XRD and TGA. It is important to understand the structural topologies to develop practical applications, such as gas storage, gas separation, and catalysis. The bi- and tetra- dentate flexible imidazole ligands, 9

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12

Bushell, Alexandra. "Mixed matrix membranes of a polymer of intrinsic microporosity with crystalline porous solids." Thesis, University of Manchester, 2012. https://www.research.manchester.ac.uk/portal/en/theses/mixed-matrix-membranes-of-a-polymer-of-intrinsic-microporosity-with-crystalline-porous-solids(6166d350-d969-49bc-8108-1c9afcaaa2f9).html.

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This work explores the fabrication and permeability testing of mixed matrix membranes (MMM) utilising a polymer of intrinsic microporosity (PIM-1) and various fillers. PIM-1 has been chosen for this work due to its high apparent surface area and high sorption of gases. PIM-1 also is a good candidate for gas sorption applications due to the film forming properties of the polymer. The fillers utilised in this work are Metal Organic Frameworks (MOFs) and organic cages, which have been chosen due to the gas sorption properties they exhibit. The MOFs used are micro and nanoparticles of Zeolitic Imi

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13

Kozachuk, Olesia [Verfasser], Roland A. [Gutachter] Fischer, and Martin [Gutachter] Muhler. "Advanced functional materials based on metal-organic frameworks : elaboration of redox-active & mixed-component "defekt engineered" MOFs / Olesia Kozachuk ; Gutachter: Roland A. Fischer, Martin Muhler ; Fakultät für Chemie und Biochemie." Bochum : Ruhr-Universität Bochum, 2014. http://d-nb.info/1231542330/34.

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14

Yildiz, Ceylan [Verfasser], and W. [Akademischer Betreuer] Kleist. "Post-synthetic modification of mixed-linker metal-organic frameworks for the design of heterogeneous single-site catalyst materials and their application in liquid phase oxidation reactions / Ceylan Yildiz ; Betreuer: W. Kleist." Karlsruhe : KIT-Bibliothek, 2020. http://d-nb.info/1209199149/34.

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15

Jackson, Patricia A. "Mixed-metal organometallic clusters." Thesis, University of Cambridge, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.304280.

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16

Yadnum, Sudarat. "Tailoring complex heterogeneous metal-organic framework structures." Thesis, Bordeaux, 2014. http://www.theses.fr/2014BORD0299/document.

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Dans cette thèse, de nouvelles stratégies pour la préparation de matériaux de type Metal-Organic-Frameworks (MOF) ont été étudiés et développés. L’électrodeposition bipolaire indirecte (IBED) a été utilisé pour préparer ZIF-8 et HKUST-1 sur des substrats métalliques de façon simple et avec une sélectivité spatiale. Ce concept devrait pouvoir être généralisée pour la synthèse de nombreux autres composés MOF, permettant ainsi une synthèse pas chère et verte, conduisant à de nouvelles générations de composites de type Janus basés sur des MOFs. En outre, des électrodes avec une structure hiérarchi

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17

Srour, Rafif K. "Metal-surface reactions in mixed aqueous organic solvents." Morgantown, W. Va. : [West Virginia University Libraries], 2004. https://etd.wvu.edu/etd/controller.jsp?moduleName=documentdata&jsp%5FetdId=3582.

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Thesis (Ph. D.)--West Virginia University, 2004.<br>Title from document title page. Document formatted into pages; contains xix, 140 p. : ill. Includes abstract. Includes bibliographical references (p. 133-140).

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18

Veitch, Charles D. "The preparation of polycrystalline mixed-metal oxide phases from metal-organic precursors." Thesis, Glasgow Caledonian University, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.335019.

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19

Yan, Yong. "Metal-organic polyhedral framework materials for hydrogen storage." Thesis, University of Nottingham, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.555387.

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This thesis describes the design, synthesis and characterisation of a series of novel metal-organic frameworks constructed from Cu(II) paddlewheels and polydentate aromatic carboxylate ligands. Gas sorption applications of these porous materials have been studied, with an emphasis on hydrogen storage. The effects of cage wall functionalisation within the frameworks, internal BET surface areas and pore volumes, and open Cu(II) sites on H2 adsorption by these materials are investigated. Chapter 1 introduces the current status of H2 storage in metal-organic framework materials. Extended metal-org

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20

Hu, Moqing. "Design, synthesis and Applications of Metal Organic Framework." Digital WPI, 2011. https://digitalcommons.wpi.edu/etd-theses/964.

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"Porous materials have been a focus of researchers for their applications as molecular storage, molecular sensing, catalysis, asymmetric synthesis and host materials. Metal-organic frameworks (MOFs) represent a promising new class of porous crystalline solids because they exhibit large pore volumes, high surface areas, permanent porosity, high thermal stability, and feature open channels with tunable dimensions and topology. We are currently investigating the design, synthesis, and structures of a new family of MOFs derived from transition metals complexes of 4-(imidazole-1-yl)benzoic acids. H

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21

Schneemann, Andreas, Volodymyr Bon, Inke Schwedler, Irena Senkovska, Stefan Kaskel, and Roland A. Fischer. "Flexible metal–organic frameworks." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-149990.

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Advances in flexible and functional metal–organic frameworks (MOFs), also called soft porous crystals, are reviewed by covering the literature of the five years period 2009–2013 with reference to the early pertinent work since the late 1990s. Flexible MOFs combine the crystalline order of the underlying coordination network with cooperative structural transformability. These materials can respond to physical and chemical stimuli of various kinds in a tunable fashion by molecular design, which does not exist for other known solid-state materials. Among the fascinating properties are so-called b

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22

Stults, Katrina A. "Metal-organic framework-metal oxide composites for toxic gas adsorption and sensing." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/51836.

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Metal organic frameworks (MOFs) and metal oxide-MOF composites were investigated for adsorption and oxidation of carbon monoxide. Metal oxides were successfully included in MOFs via both impregnation and encapsulation. UiO-66, a zirconium-based MOF, was impregnated with magnesium or cobalt oxide. Cobalt oxide in UiO-66 increases the room temperature CO capacity and shows increased adsorption at 65°C due to strong cobalt-CO interactions. Titania and magnetic nanoparticles were encapsulated in HKUST-1, a copper-based MOF. Including titania in HKUST-1 lowers the CO oxidation onset temperature b

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23

Cessford, Naomi Faye. "Simulation of the synthesis of metal-organic framework materials." Thesis, University of Edinburgh, 2014. http://hdl.handle.net/1842/17610.

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The objective of this work was to develop a molecular simulation method with the capacity to represent the synthesis of metal-organic framework (MOF) structures to the extent of being able to accurately predict the MOF structures that form under specified reaction conditions. MOFs are a class of porous, crystalline solids composed of metal-ion vertices coordinated by organic linker molecules. MOFs are created in a self-assembly process in which the building blocks (reactants) retain their integrity. Under different experimental synthesis conditions, a particular combination of building blocks

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24

Moh, Pak Yan. "Crystal growth of the metal-organic framework ZIF-8." Thesis, University of Manchester, 2012. https://www.research.manchester.ac.uk/portal/en/theses/crystal-growth-of-the-metalorganic-framework-zif8(03e7bf63-dc66-48f7-9786-86b98caaf6eb).html.

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The crystal growth of nanoporous materials is different from most other classes of material in that their framework architectures contain periodic arrangement of pores or voids in which there is no direct bonding between adjacent units of the framework. This poses a variety of questions as to how such parts of framework develop during the crystallization process, atomistically and energetically. Here we use the nanoporous metal-organic framework, ZIF-8 as a prototypical material to obtain a basic understanding of the growth of a nanoporous material. The crystals of ZIF-8 produced in the N,N-di

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25

Trieu, Thuong X. "Syntheses and Characterizations of New Metal-Organic Framework Materials." Thesis, California State University, Long Beach, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10973986.

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<p> Metal–organic frameworks are a rapidly expanding family of crystalline porous materials and have shown great promise to address various challenges such as gas storage and separation due to their well-defined pore size and unprecedented tunability in both composition and pore geometry. Here, we have synthesized and structurally characterized a number of new metal- organic framework materials and studied the effects of ligands and metal types on the construction and properties of metal–organic frameworks. To probe the effects of functional groups on ligands, two zinc-based three-

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26

Campbell, James. "The development of hybrid polymer-metal organic framework membranes for organic solvent nanofiltration." Thesis, Imperial College London, 2014. http://hdl.handle.net/10044/1/33219.

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The most common membranes used for organic solvent nanofiltration (OSN) are integrally skinned asymmetric membranes formed via the immersion precipitation phase inversion process. These membranes are flexible, durable and easy to produce. However control of the porous properties of these membranes is not possible on a molecular level. Integrally skinned asymmetric membranes always exhibit signs of a pore size distribution, which leads to rejections not being optimum. Metal organic frameworks (MOFs) were added to polymeric OSN membranes in an attempt to improve the control over porous propertie

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Gao, Min. "Carbon dioxide absorption in metal organic frameworks." Thesis, Queen Mary, University of London, 2015. http://qmro.qmul.ac.uk/xmlui/handle/123456789/23195.

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With the emission of carbon dioxide (CO2) becoming an international worry due its role in climate change, solutions such as CO2 capture and storage technologies are needed to decrease the emissions. The main proportion of CO2 gas emissions is from fossil fuel combustion in a range of industries, including power generation. To develop the CO2 capture system for these operations, new materials are needed for CO2 capture. Metal-organic framework (MOF) materials have porous crystal structures containing organic molecules (organic ligands) linked to each other by metalcontaining nodes. The large in

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Marsden, C. "The synthesis and reactivity of di- and polynuclear mixed metal complexes." Thesis, University of Bristol, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.356224.

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29

Shoaee, Maryam. "Crystal growth and properties of a copper metal organic framework." Thesis, University of Manchester, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.489541.

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The work presented in this thesis, aims to investigate the growth mechanism of the metal organic framework (MOP), HKUST-1, during the nucleation and the crystal growth periods. This was attempted in two stages, first detailed ex-situ and in-situ studies of the said MOP using atomic force microscopy (APM), followed by the in-situ investigation of the speciation processes in HKUST-1 utilising mass spectrometry (MS) and electron spin resonance (ESR).

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Liu, Leifeng. "Inorganic and Metal-Organic Framework Materials : Synthesis and structure characterization." Doctoral thesis, Stockholms universitet, Institutionen för material- och miljökemi (MMK), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-102816.

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Inorganic and metal-organic framework materials possessing accessible and permanent pores are receiving tremendous attention. Among them, zeolites are the most famous class due to their wide applications on petrochemistry and gas separation. Besides zeolites, the other oxide framework materials are also intensively investigated because of their diverse structures and compositions. Metal-organic frameworks are built from metal clusters and organic linkers. By rational designing the reagent, the network with desired topology and functionality can be synthesized. For all of the framework material

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31

Grünker, Ronny, Irena Senkovska, Ralf Biedermann, et al. "A highly porous flexible Metal–Organic Framework with corundum topology." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-138599.

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A flexible Metal–Organic Framework Zn4O(BenzTB)3/2 (DUT-13) was obtained by combination of a tetratopic linker and Zn4O6+ as connector. The material has a corundum topology and shows the highest pore volume among flexible MOFs<br>Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich

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Padmanaban, Mohan, Philipp Müller, Christian Lieder, et al. "Application of a chiral metal–organic framework in enantioselective separation." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-138682.

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A modular approach for the synthesis of highly ordered porous and chiral auxiliary (Evans auxiliary) decorated metal–organic frameworks is developed. Our synthesis strategy, which uses known porous structures as model materials for incorporation of chirality via linker modification, can provide access to a wide range of porous materials suitable for enantioselective separation and catalysis. Chiral analogues of UMCM-1 have been synthesized and investigated for the enantioseparation of chiral compounds in the liquid phase and first promising results are reported<br>Dieser Beitrag ist mit Zustim

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Grünker, Ronny, Volodymyr Bon, Philipp Müller, et al. "A new metal–organic framework with ultra-high surface area." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-149154.

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A new mesoporous MOF, Zn4O(bpdc)(btctb)4/3 (DUT-32), containing linear ditopic (bpdc2−; 4,4′-biphenylenedicarboxylic acid) and tritopic (btctb3−; 4,4′,4′′-[benzene-1,3,5-triyltris(carbonylimino)]tris-benzoate) linkers, was synthesised. The highly porous solid has a total pore volume of 3.16 cm3 g−1 and a specific BET surface area of 6411 m2 g−1, adding this compound to the top ten porous materials with the highest BET surface area.

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Worrall, Stephen. "Anodic deposition of metal-organic framework coatings for electrochemical applications." Thesis, University of Manchester, 2017. https://www.research.manchester.ac.uk/portal/en/theses/anodic-deposition-of-metalorganic-framework-coatings-for-electrochemical-applications(89a9a8b8-161d-428c-896c-4d0acbb72f4c).html.

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The electrochemical growth of metal-organic framework (MOF) coatings, utilising the anodic dissolution method, has been investigated as a means of preparing MOF coated electrodes for various electrochemical applications. A mechanistic understanding of the formation of the electrode coatings has been further developed. This understanding has been utilised to expand the scope of this technique; to allow for the electrochemical formation of Zn and Co zeoliticimidazolate framework (ZIF) coatings which was hitherto not believed to bepossible. Electrodes coated with Co and Zn ZIFs via this methodolo

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Grünker, Ronny, Irena Senkovska, Ralf Biedermann, et al. "A highly porous flexible Metal–Organic Framework with corundum topology." Royal Society of Chemistry, 2011. https://tud.qucosa.de/id/qucosa%3A27762.

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A flexible Metal–Organic Framework Zn4O(BenzTB)3/2 (DUT-13) was obtained by combination of a tetratopic linker and Zn4O6+ as connector. The material has a corundum topology and shows the highest pore volume among flexible MOFs.<br>Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich.

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Padmanaban, Mohan, Philipp Müller, Christian Lieder, et al. "Application of a chiral metal–organic framework in enantioselective separation." Royal Society of Chemistry, 2011. https://tud.qucosa.de/id/qucosa%3A27771.

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A modular approach for the synthesis of highly ordered porous and chiral auxiliary (Evans auxiliary) decorated metal–organic frameworks is developed. Our synthesis strategy, which uses known porous structures as model materials for incorporation of chirality via linker modification, can provide access to a wide range of porous materials suitable for enantioselective separation and catalysis. Chiral analogues of UMCM-1 have been synthesized and investigated for the enantioseparation of chiral compounds in the liquid phase and first promising results are reported.<br>Dieser Beitrag ist mit Zusti

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Li, Dongfang. "Copper-based Metal-Organic-Framework for Electrochemical Carbon Dioxide Reduction." Thesis, The University of Sydney, 2022. https://hdl.handle.net/2123/29915.

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Copper has generated variable studies and applications in electrochemical CO2 reduction reaction (CO2RR) due to its difference in product diversity compared with other transition metals. Metal-Organic Frameworks (MOFs) as high-porosity structures have huge potential in many fields, such as energy storage and conversion, UiO-67 is widely used, especially in scenarios where thermal stability and alkaline environments are required. Here this project will induct Cu@UiO-67 and Cu@UiO-bpy could be electrochemical catalysts for CO2RR under alkaline conditions. It investigated the factor of reacting w

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Lin, Shaoyang. "Functionalized Metal-Organic Frameworks for Water Oxidation Catalysis." Diss., Virginia Tech, 2019. http://hdl.handle.net/10919/99907.

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Increasing energy demand will not only aggravate global warming, but also cause fossil fuels shortage in the near future. Solar energy is an infinite green energy resource that can potentially satisfy our energy usage. By utilizing solar energy to drive reactions like water splitting, solar fuels system are able to produce valuable energy resource. Catalysts for water oxidation are the essential component of water splitting cells which have been intensively studied. As a solid state porous crystalline material with synthetic tunability, Metal-organic framework (MOF) is a promising platform for

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Ding, Bowen. "Localised Charge Transfer in Metal-Organic Frameworks for Catalysis." Thesis, The University of Sydney, 2018. http://hdl.handle.net/2123/19852.

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In natural photosynthetic systems localised charge transfer (CT) interactions are employed to prolong photoexcited charge separated states, facilitating conversion to chemical energy. This thesis explores localised CT in redox-active Metal-Organic Frameworks (MOFs) for applications in electrocatalysis and photoelectrocatalysis. Two design strategies are adopted, the first of which incorporates cofacial dimeric units of the photo- and redox-active N,Nʹ-di(4-pyridyl)-1,4,5,8-naphthalenediimide (DPNDI) ligand into a Cd(II) MOF. Crystallographic characterisation of the structural flexibility in th

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Ashoka, Sahadevan Suchithra. "Anilate-based molecular building blocks for metal-organic frameworks and molecular conductors Conducting Anilate-Based Mixed-Valence Fe(II)Fe(III) Coordination Polymer: Small-Polaron Hopping Model for Oxalate-Type Fe(II)Fe(III) 2D Networks Nanosheets of Two-Dimensional Neutral Coordination Polymers Based on Near-Infrared-Emitting Lanthanides and a Chlorocyananilate Ligand." Thesis, Angers, 2019. http://bu.univ-angers.fr/Contact.

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Ce travail porte sur la synthèse et la caractérisation de matériaux moléculaires fonctionnels basés sur la molécule anilate et présentant des propriétés de conductivité, de magnétisme et de luminescence. Les anilates sont des dérivés de la 2,5-dihydroxy-1,4-benzoquinone substitués en positions 3 et 6 par une variété d’éléments (H, F, Cl, Br, I, CN, etc). Parmi eux, le seul composé hétérosubstitué ClCNAn2- a été choisi pour préparer une nouvelle famille de polymères de coordination bidimensionnels (PC 2D) avec des métaux de transition ou des ions lanthanides : i) un PC à valence mixte FeIIFeIII

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Ferrandon, Magali. "Mixed metal oxide - noble metal catalysts for total oxidation of volatile organic compounds and carbon monoxide." Doctoral thesis, Stockholm, 2001. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3156.

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Renouf, Catherine Louise. "Coordinatively unsaturated metal organic frameworks for olefin separations." Thesis, University of St Andrews, 2013. http://hdl.handle.net/10023/3686.

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The research presented in this thesis aims to assess the capacity of metal organic frameworks with open metal sites for the separation of olefin mixtures. Chapter 1 provides a background to the field, including industrial separation techniques, metal organic frameworks and their applications and the current state-of-the- art for olefin separation. Chapter 3 describes the experimental techniques used in this research. Ethylene and propylene adsorption and desorption isotherms on Ni-CPO-27 and HKUST-1 at a range of temperatures are presented and compared in Chapter 4, and used to calculate isost

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Keskin, Seda. "Accelerating development of metal organic framework membranes using atomically detailed simulations." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/31679.

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Thesis (Ph.D)--Chemical Engineering, Georgia Institute of Technology, 2010.<br>Committee Chair: Sholl, David S.; Committee Member: Chance, Ronald R.; Committee Member: Jang, Seung Soon; Committee Member: Koros, William J.; Committee Member: Nair, Sankar. Part of the SMARTech Electronic Thesis and Dissertation Collection.

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Mu, Bin. "Synthesis and gas adsorption study of porous metal-organic framework materials." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/41097.

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Metal-organic frameworks (MOFs) or porous coordination polymers (PCPs) have become the focus of intense study over the past decade due to their potential for advancing a variety of applications including air purification, gas storage, adsorption separations, catalysis, gas sensing, drug delivery, and so on. These materials have some distinct advantages over traditional porous materials such as the well-defined structures, uniform pore sizes, chemically functionalized sorption sites, and potential for post-synthetic modification, etc. Thus, synthesis and adsorption studies of porous MOFs have

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Putkham, Apipong. "Synthesis, characterisation and gas absorption studies for metal organic framework materials." Thesis, University of Newcastle Upon Tyne, 2010. http://hdl.handle.net/10443/909.

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Recently, porous metal organic framework materials (MOFs) have attracted considerable attention due to the wide range of possible applications of the materials in 1) gas storage, purification and separation; 2) as catalysts and catalyst supports; and 3) for adsorption of environmentally unfriendly species. This study has involved the synthesis, characterisation and determination of the adsorption/desorption characteristics of functionalised porous metal organic framework materials. The overall objective was to increase understanding of the role of surface functional groups and framework flexib

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Bendiksen, Bård A., Eddy W. Hansen, and Harald Walderhaug. "NMR studies of benzene mobility in metal-organic framework UiO-67." Universitätsbibliothek Leipzig, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-182918.

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Sua, Andy. "Using Metal-Organic Framework Film as a Drug-Eluting Stent Coating." Thesis, California State University, Long Beach, 2019. http://pqdtopen.proquest.com/#viewpdf?dispub=10975741.

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<p> Metal-organic frameworks have a wide range of applications including gas separation, gas capture, catalysis and drug delivery. Due to the in-stent thrombosis of the current drug-eluting stents we propose replacing the toxic polymer with a more biodegradable MOF thin film consisting of MIL-88b. The MIL-88b thin film was formed on functionalized gold through a direct crystallization method and was confirmed using x-ray diffraction (XRD) and Fourier- transform infrared spectroscopy (FTIR). Possible ibuprofen encapsulation and elution was confirmed through FTIR and UV-VIS spectroscopy. The MIL

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Martin, Kathleen E. (Kathleen Ewing). "Selective ethylene dimerization by a nickel-exchanged metal-organic framework catalyst." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/107570.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Chemistry, 2016.<br>Cataloged from PDF version of thesis. Vita.<br>Includes bibliographical references (pages 31-32).<br>Short linear [alpha]-olefins such as 1-butene are valuable commodity chemicals due to their use as comonomers in linear low-density polyethylene. Presently only homogeneous systems are used to catalyze ethylene dimerization in industry, causing many to suffer from quick deactivation and poor selectivity. The metal-organic framework (MOF) CPF-5 Mn₅(TBA)₃(HCOO)₃(OH)(H₂O₂)2]]₄·6DMF where TBA = 4-(l H-tetrazol-5-

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Munn, Alexis S. "Synthesis and characterisation of metal-organic framework materials with carboxylate ligands." Thesis, University of Warwick, 2013. http://wrap.warwick.ac.uk/58606/.

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The adsorption of various guest molecules by the flexible 1,4-benzenedicarboxylate metal-organic framework (MOF), MIL-53, has been followed using in situ diffraction techniques. This crystalline MOF displays a structural expansion upon the adsorption of guest molecules, evident by a change in unit cell parameters, which allows adsorption to be followed using diffraction techniques. Adsorption studies were performed with the Fe(III) form of MIL-53 using both liquidand gas-phase guest molecules. The results from in situ X-ray diffraction (XRD) studies show that small aliphatic-alcohols give rise

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Bendiksen, Bård A., Eddy W. Hansen, and Harald Walderhaug. "NMR studies of benzene mobility in metal-organic framework UiO-67." Diffusion fundamentals 20 (2013) 43, S. 1, 2013. https://ul.qucosa.de/id/qucosa%3A13612.

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