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.
Results
Showing 1 to 20 of 43 for “"reduced graphene oxide"”.
-
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 …
-
Optical properties of reduced graphene oxide : insights from ab initio and hybrid density functional theory
Graphene, despite its many remarkable material properties, is fundamentally limited for many photonic and microelectronic applications due to its semi-metallic nature. Chemical functionalisation of graphene affords one route toward opening an energy gap, potentially extending its utility to these …
-
Optimizing graphene oxide reduction via laser irradiation
… report discusses a single step method to reduce graphene oxide via laser irradiation. A computer numerically controlled laser engraver equipped with a 450nm laser diode was engineered to conduct this research. Reduced graphene oxide samples were prepared on a polycarbonate substrate at various …
-
Synthesis and Characterization of Graphene-Polymer Nanocomposites via Reversible Addition-Fragmentation Chain-Transfer Polymerization
Graphene has emerged as a subject of tremendous scientific interest due to its exceptional electrical, mechanical and thermal properties. When incorporated into a polymer matrix, graphene sheets can significantly improve the properties of the host polymer. However, the dispersion of pure graphene …
-
Graphene Oxides and Related Applications
One of the most interesting properties of graphene oxide is that it is possible to undergo it to reduction processes by the removal of the oxygen-containing functional groups and, consequently, the restoration of the conjugated structure. The aim of this research project has been the launching of a …
-
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 …
-
Polymer Transcrystallization Induced by Carbon Nanotube and Graphene Fibers
… like nylon and polytetrafluoroethylene.</p> <p>Graphene is one such filler that can provide substantial benefits due to its high strength, thermal conductivity, and electrical conductivity, but the interactions between these materials have not been studied extensively. Because of this, graphene …
-
Large scale applications of 2D materials for sensing and energy harvesting
… the fabrication and characterization of printed reduced graphene oxide strain sensors, Chemical Vapor Deposition (CVD) 2D material transistors, and tungsten diselenide (WSe₂) photovoltaic devices that were produced through a combination of printing and conventional microfabrication processes. …
-
Reduction Study of Oxidized Two-dimensional Graphene-based Materials by Chemical and Thermal Reduction Methods
Graphene is a two-dimensional (2D) sp2-hybridized carbon-based material possessing properties which include high electrical conductivity, ballistic thermal conductivity, tensile strength exceeding that of steel, high flexural strength, optical transparency, and the ability to adsorb and desorb …
-
Emerging electronic materials : thin films of asphaltenes and coal nanoparticles for electronic devices and large area layer controlled 2-dimensional semiconductor synthesis
… and with long-range order (for example, -C:H and reduced graphene oxide), have been used in a variety of optical and electronic applications from conductive additives and contact materials to transistors and photovoltaics. In contrast, the electronic properties of solid natural carbon materials …
-
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 …
-
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 …
-
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 …
-
Preparation and Characterization of Hydrophobic Graphene-Based Thin Films
Since the ``Scotch tape" discovery of graphene synthesis over a decade ago there has been significant interest in the industrial scale-up of graphene production, with the understanding that the material's exceptional physical and electrical properties could be used to enhance finished products. One …
-
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, …
-
Novel Nanostructured Titania and Titania Nanocomposites for Photovoltaics and Photocatalysis
… to enhanced light absorption in DSSCs. Also, reduced graphene oxide nanosheets are deposited onto a TiO2 nanotube array using electrophoretic deposition, for increased electronic conductivity and improved electron transport in DSSCs. Additionally, ultra-thin two dimensional TiO2 nanosheets are …
-
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 …
-
Development of Strontium Titanate Based Nanomaterials for Resistive Switching Applications
… metal-insulator-metal structure, in which metal oxide is widely employed as the insulator. Among a variety of metal oxides, SrTiO3 has attracted extensive attention owing to its superior physical and chemical properties. In this dissertation, novel SrTiO3 resistive switching devices through …
Page 1 of 3