Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 35 for “"materials synthesis"”.
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CVD Grown Graphene-Based Materials: Synthesis, Characterization and Applications
… or 3D porous structures; which involves the synthesis of several structures such as nitrogen-doped graphene, graphene-carbon nanotube hybrids, in-plane graphene-boron nitride heterostructures, and graphene-molybdenum carbide hybrids. The analysis of impurities in CVD grown graphene at the …
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Microstructured materials synthesis via salt-assisted ultrasonic spray pyrolysis
Micro- and nanostructured materials are a very important part of today’s technology due to their unique physical, optical, magnetic, and electrical properties. Many methods of producing these materials, however, require expensive precursors or templates and complicated, multi-step procedures. …
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Theoretical advancements towards understanding crystalline metastability during materials synthesis
… is an unsolved and fundamental problem in materials synthesis, and one which if understood and harnessed, could enable the rational design of synthesis pathways towards or away from metastable structures. Although metastable phases are ubiquitous in both nature and technology, only a …
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Ionic liquids and chitinous biomass: materials, synthesis, and applications for uranium sequestration
The mining of Uranium (U) ore, processing, and applications in weapons manufacturing and nuclear fuel have resulted in a legacy of contamination that require the creation of innovative methods that provide waste to volume minimization. Therefore a major objective of this research was to combine the …
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Well defined graft copolymers and end functional materials: synthesis, characterization and adhesion studies
… methods, anionic and group transfer, for the synthesis of well defined end functional materials and graft copolymers. Group transfer polymerization was utilized to synthesize acrylic terminal poly(methyl methacrylate) (PMMA) macromonomers of controlled molecular weight and narrow molecular …
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Bismuth-, Tin-, and Lead-Containing Metal-Organic Materials: Synthesis, Structure, Photoluminescence, Second Harmonic Generation, and Ferroelectric Properties
<p>Metal-Organic Materials (MOMs) contain metal moieties and organic ligands that combine to form discrete (e.g. metal-organic polyhedra, spheres or nanoballs, metal-organic polygons) or polymeric structures with one-, two-, or three-dimensional periodicities that can exhibit a variety of …
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Protein crystals as templates for materials chemistry
… biological crystals as templates for materials synthesis. The macromolecular crystal itself offers unique micro- and mesoporous structure with specific binding sites for molecules. This work utilizes this porous structure for the design of polymer and metal loaded nanocomposites. The …
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Synthesis and Electronic Transport of Natural Superlattice Compounds
… through the band structure. Advances in materials synthesis and discovery have led to precise control over electronic properties via control of the atomic structure. One family of materials in which this has been explored are van der Waals (vdW) materials. In addition to their study as …
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The synthesis, characterization and catalytic applications of mesocellular silica foams
Despite recent progress in materials synthesis, there are few materials with narrow pore size distributions and well-defined pore structures in the size range of 100 - 500 A. Materials with pores of 100 - 500 A possess a potential combination of high surface areas and pore sizes accommodating of …
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Synthesis and microfabrication of elastomeric biomaterials for advanced tissue engineering scaffolds
… of microfabrication technology and advanced biomaterials synthesis and processing for use in designing and fabricating novel tissue engineered constructs. The unifying theme is to use micron and sub-micron fabrication strategies to form advanced tissue engineering scaffolds which are able to …
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Studies of Metathesis for Materials Applications: Present and Future Possibilities
… are now widely used as catalysts for organic and materials synthesis. Among such transformations, olefin metathesis (OM) occupies a position of pre-eminent significance. Alkyne metathesis holds great promise, but remains in a much lower state of development. The OM-directed work in this thesis …
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The discovery of new functional oxides using combinatorial techniques and advanced data mining algorithms
Electroceramic materials research is a wide ranging field driven by device applications. For many years, the demand for new materials was addressed largely through serial processing and analysis of samples often similar in composition to those already characterised. The Functional Oxide Discovery …
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Proposta de atividades para o ensino de química envolvendo o tema biodiesel.
… of classes involves the extraction of raw materials, synthesis and characterization of biodiesel, into theoretical and experimental. The unprecedented character of this work it is the inclusion of modern chemistry related to the topic which is the characterization technique of infrared …
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A versatile design platform for multi-heterocyclic ionic liquid synthesis
… have supported a variety of discoveries in materials design. The modular combination of available `IL-forming' cations and anions provides retention of properties inherent to ILs such as low melting points, good thermal stability and negligible vapor pressure. Additionally, the …
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Periodically Modulated Electronic States in Natural Superlattices
… it was realized that interaction effects and materials synthesis techniques could be exploited to introduce additional periodic modulations atop this underlying atomic periodicity. Over the years, efforts in this direction based on two-dimensional (2D) thin-films and van der Waals (vdW) …
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Accelerating Novel Energy Catalyst Discovery Using Automation, Active Learning, and AI
… is a critical challenge in the field of materials science. Traditional methods for materials discovery are labor-intensive and time-consuming, hindering the rapid development of new catalysts. To address this issue, we introduce a comprehensive approach that integrates automation, active …
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High-throughput Bandgap Mapping for Perovskite-inspired Materials
… application. As a result, perovskite-inspired materials, which are stable and lead-free, have attracted attention. Like their lead halide counterparts, these perovskite-inspired materials possess a vast compositional space, presenting a challenge in finding materials with the desired …
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Metallocluster Site-Differentiation and Subsite Specific Heterometal Substitution
… in applications such as catalysis and materials synthesis requires robust methods for site-differentiation: the conversion of clusters with symmetric ligand spheres to those with unsymmetrical ligand spheres. However, imparting precise patterns of site-differentiation is challenging …
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Evaluation of ligninolytic enzymes of (coptotermes curvignathus) gut bacteria for oil palm residues biodelignification
… bioethanol production, fine chemicals and materials synthesis.
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Synthesis and evaluation of rare-earth doped glasses and crystals for optical refrigeration
… and characterizing rare-earth doped, solid-state materials for laser cooling. In particular, the work targeted the optimization of the laser-cooling efficiency in Yb3+ and Tm3+ doped fluorides. The first instance of laser-induced cooling in a Tm3+-doped crystal, BaY2F8 was reported. Cooling by 3 …
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