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 45 for “"Carbon-based materials"”.
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Nanostructured carbon-based materials for electrochemical applications
Mesoporous carbons have been widely studied due to the relevance of these materials for applications in energy storage and conversion devices (batteries, supercapacitors, and fuel cells), mainly due to their high surface area, tunable pore distribution, and good electrical conductivity. Though …
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Investigating physical properties of novel carbon-based materials
… of physical properties in three classes of novel carbon-based materials: carbon aerogels, single-walled carbon nanotubes, and high thermal conductivity graphitic foams. The experimental technique of Raman laser spectroscopy yields structural information about all of these materials that we are …
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A study of carbon based materials for energy applications
Carbon based materials such as CNTs and graphene have been widely studied over the last few years. The outstanding electrical and mechanical properties of these materials attracted researchers to find ways to grow and use them in nano-devices. Among the different techniques, PECVD is a relatively …
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Analysis of carbon based materials under fusion relevant thermal loads
Carbon based materials (CBMs) are used in fusion devices as plasma facing materials for decades. They have been selected due to the inherent advantages of carbon for fusion applications. The main ones are its low atomic number and the fact that it does not melt but sublimate (above 3000°C) under …
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Understanding and enhancing multi-pollutant control using carbon-based materials
… of research and industrial use have solidified carbon as one of the most versatile materials available. In the environmental arena, carbon is used as an adsorbent for air and water applications. Recent studies, however, highlight its use as a catalyst support or direct catalyst. Exploiting this …
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AI-Driven Discovery and Multiscale Computational Frameworks for Carbon-Based Materials
… develops a unified, data-driven framework for carbon-based materials discovery that integrates generative artificial intelligence, multiscale simulations, and reactive dynamics to accelerate research central to carbon-to-X technologies. Chapter 2 establishes a one-directional workflow in which …
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Theoretical Study of Carbon-Based Materials and Their Applications in Nanoelectronics
… limits of silicon and it is foreseen that new materials and novel device structures will be required for future device improvements. In this regards, research in carbon electronics has been intensified since 2004 due to the physical realization of thermodynamically stable planar graphene. …
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Sustainable photocatalysis using carbon-based materials through interfacial and solvent engineering
… attention as a pathway toward a sustainable carbon economy. Among the wide range of semiconducting materials investigated, carbon-based nanomaterials have been considered as promising candidates due to their non-toxicity, scalability, cost-effectiveness, and distinctive optical and …
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Performance of metallic and carbon based materials under the influence of intense transient energy deposition
… on localized areas of the plasma facing materials under transient thermal loads such as edge localized modes (ELMs), plasma disruptions or vertical displacement events (VDEs) in a magnetic confined fusion reactor. Crack formation, thermal erosion and redeposition mainly take place under …
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Electrochemistry of Amorphous Carbon Based Materials - Development of an electrochemical sensor for the detection of dopamine
… we have investigated the use of amorphous carbon (a-C) materials as electrochemical sensors for the sensitive and selective measurement of DA. There have been relatively few reports on the electrochemical properties of a-C, although it offers significant advantages, such as a wide potential …
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Theoretial studies of carbon-based nanostrutured materials with applications in hydrogen storage
… of this work is to search for new stable porous carbon-based materials, which have the ability to accommodate and store hydrogen gas. Theoretical and experimental studies suggest a close relation between the nano-scale structure of the material and its storage capacity. In order to design …
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Production of Single-Walled Carbon Nanotubes by Chemical Vapor Deposition: Design and Scale Up
Carbon nanotubes are a new form of carbon-based materials that are fabricated using several distinct techniques. Carbon nanotubes exhibit exceptional mechanical properties that are ideal for reinforced composites, nanoelectronic structures, and sensor devices. In the present research, single-walled …
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DFT study of doped and functionalized fullerene based materials for lithium-ion battery applications
… metal oxides (TMO) currently used as cathode materials are expensive, strategically scarce, toxic and have environmental implications. The crystal structure of these materials sets an upper bound on the amount of lithium they can intercalate which limits the energy density of the device. …
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Reduction of Electronic Traps in Organic Semiconductors by Novel Processing Methods
In a field dominated by inorganic semiconductors, carbon-based materials are emerging as possible replacements for devices where a moderate performance is acceptable, with many desirable traits that make them better suited in certain applications. Specifically, many organic semiconductors can be …
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Enhancing the Electrical Performance of Organic Field-Effect Transistors Through Interface Engineering
… common material used in FETs today is silicon. Materials used in silicon-based electronics have now begun to be complemented by, and in some case replaced by, organic-based (i.e. carbon- based) materials. Due to weaker interactions between the molecules of organic materials, these compounds can …
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Simulations of the hydrogen storage capacities of carbon materials
… simulations on reversible model systems. Carbon-based materials, have always been regarded as the most attractive physisorption substrates for the storage of hydrogen. Theoretical and experimental studies on various model carbon systems, however, failed to reach the elusive goal. In this …
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Experimental study of alumina-water and zirconia-water nanofluids convective heat transfer and viscous pressure loss in Laminar regime
… of nanoparticles in metal, metal oxide, carbon-based materials in base fluids, and may offer improved heat transfer properties compared with pure base fluids. A flow loop with a vertical heated section was designed and constructed to operate in the laminar flow regime (Re<2000). Initial …
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Photo-Thermal Application of a Polydimethylsiloxane Foam Embedded with Carbon Nanoparticles for Interfacial Solar Water Evaporation
… composites of polydimethylsiloxane (PDMS) and carbon-based materials have attracted intensive research interests over the past several decades owing to its stretchable, non-toxic features which can be applied in various fields such as flexible energy harvesting and storage devices. In this …
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Nanostructural engineering of vapor-processed organic photovoltaics for efficient solar energy conversion from any Surface
… of OPVs, we integrate vapor-processed carbon-based electrodes and sub-30nm-thin encapsulations in organic photovoltaics, leading to the demonstration of monolithic, robust solar cell arrays as well as the first ever solar cells fabricated directly on paper. Furthermore, we have …
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