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Showing 1 to 20 of 46 for “"Solvothermal"”.
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Solvothermal synthesis and characterisation of novel Gallium-sulphide compounds
… compounds were synthesised under solvothermal conditions. Three-dimensional frameworks, which are analogous to previously reported structures, along with a large number of new hybrid supertetrahedral compounds were produced. Inorganic three-dimensional structures were obtained …
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The design, fabrication, and implications of a solvothermal vapor annealing chamber
… use, and benefits of a prototype aluminum solvothermal vapor annealing chamber which facilitates the self-assembly of block copolymers (BCPs) on silicon wafers which are then used to generate nanoscale patterns through the use of additive lithography. The chamber aids in the low-waste …
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Hydro/Solvothermal Synthesis, Structures and Properties of Metal-Organic Frameworks Based on S-Block Metals
… (7) have been synthesized using the hydro/solvothermal method and have been characterized using X-ray diffraction, IR, UV-vis, TGA and fluorescence analysis. The structures of compounds 1, 6 and 7are three-dimensional frameworks while that of compound 2 is a double layered network.</p>
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Thermodynamic and kinetic examinations of inorganic materials formation
… and demonstrated for the investigation of solvothermal and solid state reactions. Detailed kinetic reaction progress maps were constructed, showing quantitative information on the kinetic development of the quantity of each constituent phase during chemical reactions. The approach deployed …
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Use of multiple functionalised ligand sets in metalorganic framework formation: synthesis, characterisation and gas uptake studies
… their gas uptake behaviours investigated. The solvothermal reaction of Zn(NO3)2.6H2O with 5-aminoisophthalic acid (H2-5- AIP) and 4,4'-bipyridyl (4,4'-bipy) led to the self-assembly of the 3D hybrid Hbonded/ covalent structure {[Zn(5-AIP)(4,4'-bipy)0.5].DMF}n (1), with an analogous reaction …
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Nonaqueous syntheses of metal oxide and metal nitride nanoparticles
… and other technologically important materials. Solvothermal synthesis however is not restricted to formation of oxide materials only. In the second part we show examples of nonaqueous, solvothermal reactions of metal nitrides, but the main focus lies on the investigation of the influence of …
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Engineering nanoporous materials for application in gas separation membranes
… made with the modified zeolites. First, a facile solvothermal deposition process was developed to prepare roughened inorganic nanostructures on zeolite pure silica MFI crystal surfaces. The functionalized zeolite crystals resulted in high-quality ̒mixed matrix̕ membranes, wherein the zeolite …
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Synthesis and Characterization of Ferroelectric Nanomaterials
… nanoparticles and ceramics were prepared using solvothermal, hydrothermal and citrate-gel methods. The ferroelectric properties of the prepared cosubstituted Bi4Ti3O12 ceramics were studied using P–E hysteresis loop, leakage, and polarization fatigue measurements. A two-phase solvothermal …
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Synthesis and Structures of New Three-Dimensional Copper Metal-Organic Frameworks
… pyz= pyrazine) have been synthesized using hydro/solvothermal methods and have been characterized using X-ray diffraction, IR, TGA, fluorescence and CHN analysis.</p>
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Nichtwässrige Synthese und Bildungsmechanismus von Übergangsmetalloxid-Nanopartikeln = Nonaqueous synthesis of transition-metal oxide nanoparticles and their formation mechanism
… mechanisms leading to particle formation upon solvothermal treatment of the precursors, as an understanding of the formation processes is expected to be crucial for a better control of the systems, offering the potential to tailor particle size and morphology. The synthesis of BaTiO3 was …
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Implementing Solvothermally Synthesized Carbon Nanodots into Dye-Sensitized Solar Cells to Enhance External Quantum Efficiency in the Ultraviolet
… method incorporating a Lewis acid into a solvothermal reflux reaction (consisting of acetonitrile instead of water) to enable the conversion of D-fructose into 5-HMF in acetonitrile. As a result, this solvothermal method with a Lewis acid catalyst showed fluorescent properties under …
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Study on graphene-based nanocomposites with special magnetoresistance properties
… (rGO) and FeCo nanoparticles (NPs). A facile solvothermal process was developed to produce FeCo/rGO hybrid nanosheets with significant MR (21 ± 6%) at the low magnetic field (10 kOe) and room temperature. In addition, we demonstrated that the wireless magnetic field sensing system with …
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Synthesis and properties of transition-metal arsenide nanostructures: from superparamagnetism to superconductivity
… like wet chemistry, electrodeposition, solvothermal, hydrothermal and lithography, are extremely useful for creating nanostructures of these functional materials. This is a challenging task simply because maintaining the phase composition same as that of the bulk material along with …
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Development of manganese oxide based nanostructures by wet chemical methods for enhanced energy storage and photocatalytic applications
… such as electrochemical deposition and solvothermal techniques. The impacts of deposition parameters of manganese oxides were studied in details to tune the morphology, crystallinity and electrochemical energy storage applications. Furthermore, a core-shell structure with copper oxides …
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The design and synthesis of mixed ligand metal organic frameworks for xylene inclusion
… acid) and transition metal salts in DMF under solvothermal conditions. The synthesized MOFs were characterized using thermogravimetric analysis (TGA), single crystal X-ray diffraction (SCXRD) and powder X-ray diffraction (PXRD). Xylene inclusion experiments were performed on the MOFs and the …
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Synthesis and characterisation of new framework materials
… These materials have been<br/>synthesised by solvothermal techniques and the principal analytical technique to<br/>characterise the resulting single crystals has been Single Crystal X-ray Diffraction.<br/>Supporting analysis was carried out, using techniques such as Powder and …
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Crystal engineering of dynamic metal organic frameworks for applications in chromic sensing and capturing of small molecules
… presented. Most materials were synthesised under solvothermal conditions. The link between the phenyl and pyridyl ring in the ligand allows for conformational change through varying the dihedral angles between these two parts. The carboxylate moiety can also rotate relative to the phenyl ring and …
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Tailored heterogeneous catalysts for biomass conversion
… explores methods including hydrothermal and solvothermal approaches, examining how controlled synthesis impacts catalyst faceting, morphology and performance. Chapter 3 examines the stability and catalytic behavior of MgO(111) nanocatalysts when coated with carbon. This modification preserves …
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Functional Metal Phosphonates
… these ligands undergo reactions during the solvothermal syntheses which can impart new chemical reactivity. Another method used to introduce functionality was to partially or completely substitute metal atoms within phosphonate clusters to create materials which may have interesting magnetic …
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Design and Development of 2d Functional Semiconductor Nanocrystals
… nanosheets (NSs), with one by the post-synthetic solvothermal treatment of perovskite nanorods (NRs) and one by a ligand-mediated room temperature synthesis. Additionally, Mn2+-dopant incorporation methods were developed for each synthetic method and a novel low-temperature ZnS shell passivation …
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