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 19 of 19 for “"reduced graphene oxide (rGO)"”.
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Preparation and Characterization of Electrospun rGO-Poly(ester amide) Tissue Engineering Scaffolds
… electrospun poly(ester amide) (PEA) scaffolds. Reduced graphene oxide (rGO) was incorporated into blend PEA and coaxial PEA-chitosan fibrous scaffolds, which increased scaffold conductivity and supported cardiac differentiation. The novel combination of ultrasonication and leaching of a …
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Lithium Storage Mechanisms and Electrochemical Behavior of Molybdenum Disulfide
… to the extra capacity. The incorporation of reduced graphene oxide (RGO) as a conductive additive in MoS2 electrodes, demonstrating that RGO notably improves the electrochemical performance, rate capability, and durability of the electrodes. These findings are supported by experimental …
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Development of Solution-Processed Stable Silver Nanowire Networks for Transparent Electrodes
The continued use of indium tin oxide (ITO) as a transparent electrode for next generation optoelectronic devices will face severe challenges, including the scarcity of raw materials, high cost of processing, and lack of mechanical flexibility. Emerging transparent electrodes composed of …
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Synthesis and Characterization of Pillared Graphene and Holey Graphene
Pillared graphene (pG) and holey graphene (hG) are derivatives of graphene designed to overcome issues with agglomeration and restacking between graphene sheets, which limit surface area and ion diffusion. These two types of graphenes have enhanced catalytic properties due to holes and pillars …
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Formation Mechanisms and Photocatalytic Properties of ZnO-Based Nanomaterials
Zinc Oxide (ZnO) is one of the most extensively studied semiconductors because of its unique properties, namely, its wide band gap (3.37 eV) and high excitation binding energy (60 meV). These properties make ZnO a promising material for uses in a broad range of applications including sensors, …
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The Design Modelling of PEEK Composite for Bone Implants
… biocomposites like calcium hydroxyapatite (cHAp)/reduced graphene oxide (rGO) to boost the material's performance. This novel approach also involves creating a novel lattice structure to mimic the bone structure within the composite for a more realistic bone implant. The research encompasses …
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Synthesis and characterization of graphene: a raman study of the effect of electromagnetic and proton irradiations on graphene
Graphene, a single atomic layer of hexagonally arranged sp2–hybridized carbon atoms, with a thickness of only 0.34 nm, exhibits unique properties. The current interest in graphene can be attributed to three main reasons. Firstly, various forms of graphite, nanotubes, buckyballs and others can all …
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1, 2, and 3 Dimension Carbon/Silicon Carbon Nitride Ceramic Composites
… Here we present a composite of SiCN with reduced graphene oxide (rGO) aerogels as a route for fully dense bulk PDCs. Incorporation of the rGO aerogel matrix into the SiCN has its pros and cons. While it lowers the strength of the composite, it allows for fabrication of large bulk samples …
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Nanocompósito de poliamida/óxido de grafeno reduzido: um eficiente nanomaterial aplicado no tratamento de água produzida (ap) e separação de óleo/água do mar
… in studies involving environmental issues is reduced graphene oxide (RGO), and therefore, this material was used in this research in the synthesis of a nanocomposite based on polyamide fabric (PA) and evaluated its efficiency both in the treatment of produced water (AP) as well as in the …
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Reduced graphene oxide nanoparticle hybrids and their assembly for lithium-ion battery anodes
… the former is investigated by synthesising a reduced graphene oxide (rGO) tin sulphide (SnS2) hybrid, and the latter by self-assembly of rGO sodium titanate and rGO titanium dioxide (TiO2) nanorods. In Chapter 2, SnS2 is investigated due to its high theoretical capacity as an anode material …
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All-atom and Coarse-grained Molecular Dynamics Modeling of Various Polymeric and Composite Materials
… (PAN-b-PMMA) copolymers, polyetherimide (PEI)-graphene composites, and epoxy network polymers, by bridging molecular-level behaviors and macroscopic thermomechanical properties. First, all-atom MD simulations are used to improve the design of porous carbon fibers derived from PAN-b-PMMA …
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Advanced Thermal Management Strategies – Scalable Coal-Graphene based TIMs and Additively Manufactured Heat Sinks
… fillers such as coal-derived Multi Layered Graphene (MLG), standard reduced Graphene Oxide (rGO), Multi-Walled Carbon Nano Tubes (MWCNTs), and Graphene Nano-Platelets (GNPs) in thermal paste were synthesized and seen to have superior heat dissipation properties. Also, graphene was …
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Study on graphene-based nanocomposites with special magnetoresistance properties
… was designed and developed by integrating reduced graphene oxide (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 …
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Nanoelectronic Devices using Carbon Nanotubes and Graphene Electrodes: Fabrication and Electronic Transport Investigations
… properties using carbon nanotubes (CNTs) and graphene as electrode materials will be shown. I investigated two types of devices using (i) semiconducting CNTs, and (ii) organic semiconductors (OSC). In the first part of this thesis, I will demonstrate the fabrication of high-performance …
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P3HT:PCBM-based organic solar cells : Optimisation of active layer nanostructure and interface properties.
… with the novel ZnPc hybrids (SWCNTs and reduced graphene oxide (rGO) are covalently and non-covalently functionalised to ZnPc) with the weight ratio of (1:0.01) has significantly altered the solar cell device properties. The best performance is based on P3HT:PCBM blended with …
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NEW GO- AND RGO-BASED MORALS AND CARBENE-FUNCTIONALIZED GOLD NANOPARTICLES FOR HETEROGENEOUSLY CATALYZED REDUCTIONS
… it. In this work, the chosen organic molecule is graphene oxide, combined with two different metals, palladium and nickel. The resulting materials can also be further modified by reducing graphene oxide to reduced graphene oxide. All materials were analyzed using various analytical techniques and …
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Multifunctionality in epoxy/glass fibers composites with graphene interphase
In this project, the synergetic effect of a graphene interphase in epoxy/glass fibers composites was investigated by coating glass fibers (GF) with graphene oxide (GO) and reduced graphene oxide (rGO) nanosheets by an electrophoretic deposition (EPD) technique. Graphite oxide was prepared using …
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Investigation on the Mechanical, Microstructural, and Electrical Properties of Graphene Oxide-Cement Composite
… regard, one of the carbon-based nanomaterials, Graphene Oxide (GO), has received attentions from researchers for its superior mechanical properties (e.g. tensile strength, yield strength, and Young's modulus). Although GO is not lucrative in increasing electrical conductivity (EC) of cement …
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Viaggio nel fluxgate a RTD: sfruttare la flessibilità e raggiungere la sostenibilità
Il magnetometro fluxgate viene studiato da più di 80 anni grazie alla sua capacità di rilevare e quantificare segnali (magnetici). E' in grado di rilevare campi magnetici statici e quasi statici da 1pT a 10nT. Però, questa struttura simile a un trasformatore con un core ferromagnetico circondato …