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 41 for “"carbon nanomaterials"”.
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Synthesis, characterization and modification of carbon nanomaterials
… the mechanisms involved in catalytic growth of carbon nanotubes (CNT) and related processes, such as the catalytic hydrogenation, and to use this knowledge to optimize the experimental approaches in order to gain better control in the synthesis and modification of carbon nanomaterials. …
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Aquatic toxicity of one dimensional carbon nanomaterials
… study determined the toxicity of one dimensional carbon nanomaterials (CNMs) to amphipods, midge, oligochaetes and juvenile mussels in water and sediment. As-produced or modified carbon nanotubes (CNTs) and silicon carbide nanowires (SiCNW) were selected to represent CNMs. Sediment tests were …
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Synthesis, Structure and Properties of Various Carbon Nanomaterials
Carbon nanomaterials can have a unique place in the field of nanotechnology thanks to their exceptional electrical, optical, chemical, and mechanical properties, and thus they have become promising for a diverse array of applications. More importantly, the properties of a specific carbon …
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MICROBIAL CONTROLS ON THE ENVIRONMENTAL FATE OF CARBON NANOMATERIALS
Since the synthesis of the first carbon nanomaterials (CNM) 30 years ago, researchers and manufacturers have recognized the potential of these materials to transform the world. The unique physical properties and incredible resilience of these materials gives them countless applications and has led …
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Atomic structures of carbon nanomaterials studied by coherent electron diffraction
Carbon has an amazing number of different structural forms because of the versatility of its chemical bonds, which put it among the most extraordinary and complex of elements in materials science. Carbon readily forms nanostructures or nanoforms. The allotropes of carbon nanoforms, including …
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In-situ TEM study of carbon nanomaterials and thermoelectric nanomaterials
Graphene nanoribbons (GNRs) are quasi one dimensional structures which have unique transport properties, and have a potential to open a bandgap at small ribbon widths. They have been extensively studied in recent years due to their high potential for future electronic and spintronic device …
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Biotemplated resin and carbon nanomaterials for energy and environmental applications
… versatile toolkit for growing and assembling nanomaterials with technological importance. Inspired by the natural biomineralization process, much of the existing literature focused on genetically engineering the M13 viral capsid for interaction with inorganic materials, such as metals and …
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One- and Two-Dimensional sp2-Carbon Nanomaterials: Synthesis, Properties, and Applications
… and apply one- and two-dimensional sp2-carbon nanomaterials. The materials include graphene (2D), carbon nanotubes (1D), and graphene nanoribbons (pseudo-1D); and their hybrids with each other. Other classes of materials such as molecules, polymers, and inorganic nanoparticles are also …
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Nanometer-scale temperature measurements of phase change memory and carbon nanomaterials
… is an atomically-thin, two dimensional (2D) carbon material with promising applications in new electronic devices. Comparing measurements and predictions of CVD graphene heating predicted the resistivity, voltage drop, and temperature rise across the one dimensional (1D) GB defects. This work …
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Structure and Morphology Control in Carbon Nanomaterials for Nanoelectronics and Hydrogen Storage
<p>Carbon nanomaterials have a wide range of promising and exciting applications. One of the most heavily investigated carbon nanomaterial in recent history has been the carbon nanotube. The intense interest in carbon nanotubes can be attributed to the many exceptional characteristics which give …
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Reliability, power dissipation, sensing, and thermal transport in carbon nanomaterials and devices
… in energy efficiency. Emerging classes of nanomaterials, such as carbon nanotubes and 2-dimensional crystals (e.g. graphene), have presented new opportunities to improve energy use at the macro and nanoscale. However, much work remains to be done to fully understand the high-field …
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Complexing Carbon Nanomaterials and Reactive Metal Species for Selective Chemical Sensing and Tunable Catalysis
… thesis highlights strategies for functionalizing carbon nanomaterials with reactive metal species for applications in chemical sensing and electrocatalysis. In Chapter 1, we begin with an introduction of chemiresistive sensing using functionalized carbon nanotubes (CNTs). This introduction …
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Computational Analysis of Elastic Moduli of Covalently Functionalized Carbon Nanomaterials, Infinitesimal Elastostatic Deformations of Doubly Curved Laminated Shells, and Curing of Laminates
… literature. Effective utilization of single wall carbon nanotubes (SWCNTs) and single layer graphene sheets (SLGSs) as reinforcements in nanocomposites requires their strong binding with the surrounding matrix. An effective technique to enhance this binding is to functionalize SWCNTs and SLGSs by …
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CARBON-BASED NANOMATERIALS AND THEIR ENSEMBLES FOR HIGH TEMPERATURE THERMAL APPLICATIONS
Carbon nanomaterials, mainly including carbon nanotubes and graphene, have high potential for heat transfer applications at high temperatures because of their superb heat transport properties and good thermal stability. However, due to the small physical sizes of carbon nanomaterials, real-world …
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Building And Validating Next-Generation Neurodevices Using Novel Materials, Fabrication, And Analytic Strategies
… studies are still in their infancy. Recently, carbon nanomaterials have shown great promise to improve performance and multimodal capabilities of bioelectronic interfaces through their unique optical and electronic properties, flexibility, biocompatibility, and nanoscale topology. …
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In Situ Electron Microscopy for Characterization and Development of Clean Energy Nanomaterials
… amount of harmful emissions in the form of carbon nanoparticulates (i.e. soot). To mitigate the production of these pollutants, a more thorough understanding of how these products are formed is required. Apart from the harmful effects, flame formed carbon nanomaterials have crucial uses in …
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The Electrochemical Characterisation of Carbon-based Nanomaterials and their Application in the Detection of Heavy Metal Ions
… ions in aqueous solutions. Firstly, the use of carbon-based nanomaterials commonly used in the construction of electrochemical sensors; multiwalled carbon nanotubes (MWCNTs) and graphene, were characterised using a potassium ferricyanide probe. The carbon nanomaterials were constructed using …
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HIGH TEMPERATURE NANOMANUFACTURING FOR EMERGING TECHNOLOGIES
… mostly furnaces, are far from satisfying for nanomaterials processing owing to their bulky size and limited temperature and ramp range (~1300 K, ~10 K/min). In this thesis, we have focused on the study of electrical triggered Joule heating as a new route for high temperature engineering of …
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Integration of composite nanomaterials into anode and cathode designs
… of high surface area-hierarchically ordered carbon nanomaterials with controlled surface chemistry. Additionally, this research introduces new cathodes designs based on buckeye and toray papers for air-breathing and liquid electrolyte modes. Buckeye and 0.11mm-thick toray papers are used to …
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