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 11 of 11 for “"Nanotube Formation"”.
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Mechanics Analysis of Semiconductor Nanotube Formation Driven By Residual Mismatch Strain
The intent of this thesis is to investigate the formation mechanics of bi-layer semiconductor nanotubes (SNTs). SNTs are a promising architecture for use in a variety of applications from quantum structures to building blocks in micro- and nano-electro-mechanical systems. Bi-layer SNTs are …
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On the mechanism of carbon nanotube formation by means of catalytic chemical vapour deposition
… enormous strides in the synthesis of carbon nanotubes (CNTs), the mechanism for growth is still a highly debated issue. It is generally accepted that the model for carbon filament growth [1, 2], derived from concepts of vapour-liquid-solid theory, also applies to CNT growth. However, this …
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Bringing down barriers to the tunability, purity, and scalability of imogolite nanotubes
Synthetic imogolite is an aluminosilicate nanotube 2.1 to 2.3 nm wide and up to 1000 nm long. The high aspect ratio and ability to modify specific functional groups are desirable attributes affording it a wide range of potential. Additionally, the isomorphic substitution of Ge for Si in the …
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Bakteriofago vB_EcoS_NBD2 kilmės nanovamzdelių pritaikymas baltyminių fragmentų eksponavimui /
… safe and effective vaccines. In this study, the nanotubes formed by the tail tube protein gp39 of bacteriophage vB_EcoS_NBD2 were characterized and their use as a carrier for the presentation of foreign protein fragments was evaluated. Saccharomyces cerevisiae-produced recombinant protein gp39 …
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Flame synthesis of carbon nanotubes and metallic nanomaterials
Carbon nanotubes are a remarkable material with many appealing properties. Despite the appeal of this material, there are few synthesis techniques capable of producing nanotubes in large quantities at low-cost. The broad objective of this study was to examine the potential of a premixed flame for …
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Electrodeposition of multilayered nanostructures for giant magnetoresistance and thermoelectric applications
… of novel materials such as multilayer nanotubes for giant magneto resistance (GMR) applications and bismuth telluride nanotubes for thermoelectric applications are presented in this dissertation. The motivation for the multilayer electrodeposition is the investigation of giant …
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DEVELOPMENT OF NOVEL CATALYSTS AND PROCESSES FOR SUSTAINABLE HYDROGEN TECHNOLOGIES
… catalysts on KCC-1 support carbon nanotube formation and regeneration. These innovations improve catalyst durability and efficiency. Additionally, integrating membrane reactors is proposed to enhance hydrogen recovery. Thermodynamic assessments were conducted across PDH, DRM, CDM, …
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Development of Nano-scale Featured Materials for Electrode Modification and Solid Supports.
… B. Megaterium, as the template for nanomaterial formation. To enable the formation long microchannels, the flexible bacteria chains were aligned by using light scratches on the substrate surface as anchors for the bacteria’s adhesive cell capsule. Polystyrene (PS) sphere templates were then used …
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Atomic and electronic structure studies of nano-structured systems : Carbon and related materials
… functional theory has been conducted on carbon nanotubes and graphene nano-structures. The results have been extended to non-carbon systems such as boron nanostructures. Computational studies are complemented by experimental methods to refine the structural models and obtain a better …
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New approaches to scaled-up carbon nanotube synthesis and nanotube-based metal composites and sensors
… cost-effective synthesis of single walled carbon nanotubes (SWNTs) by thermally-induced catalytic chemical vapor deposition (CVD). With the goal of understanding the growth mechanism and optimize the synthesis process, the effect of CVD and catalyst parameters on nanotube formation was …
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Development of an internally heated FC-CVD reactor for CNT synthesis
Carbon nanotubes (CNTs) are a highly applicable material in many different applications ranging from energy storage systems to electromagnetic interference shielding devices. The macro assemblies of CNTs come in different forms including powders, textiles and sheets, which are synthesised through …