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 82 for “"multi-walled carbon nanotubes"”.
-
Multi-Walled Carbon Nanotubes-Modified Polymer Organic Photovoltaics
Since the carbon nanotubes were first discovered by Iijima in 1991, CNTs have been the focus of intense research by many groups. Nearly 7000 papers and 700 theses on carbon nanotubes can be found from the eminent journals such as Nature and Science in the last decade. Since carbon nanotubes show …
-
THE MOBILITY OF ENGINEERED MULTI-WALLED CARBON NANOTUBES IN POROUS MEDIA
… in porous media is very important. Engineered multi-walled carbon nanotubes (MWCNTs) are an important class of nanomaterials from an environmental perspective as they have application in water purification and also have an associated environmental risk. This study is conducted to explore the …
-
APPLICATION OF POLYETHYLENE-GLYCOL LINKED MULTI-WALLED CARBON NANOTUBES FOR IMPROVED STEM CELL DIFFERENTIATION
POLYETHYLENE GLYCOL LINKED MULTI-WALLED CARBON NANOTUBE (PEG-CNT) FILMS ALONE COULD DIRECT THE SKELETAL MYOGENIC DIFFERENTIATION OF HUMAN MESENCHYMAL STEM CELLS (HMSCS), EVEN IN THE ABSENCE OF MYOGENIC INDUCTION FACTORS. TO ENHANCE THE MYOGENIC DIFFERENTIATION OF HMSCS, WE DESIGNED AND FABRICATED A …
-
Block copolymer-templated iron oxide nanoparticles for bimodal growth of multi-walled carbon nanotubes
Since their discovery carbon nanotubes (CNTs) have sparked great interest due to their exceptional mechanical, electrical, and thermal properties. These properties make carbon nanotubes desirable for numerous applications including: nanoelectronics, high-strength composites, energy storage, …
-
Multi-scale electrical and thermal properties of aligned multi-walled carbon nanotubes and their composites
Carbon nanotubes (CNTs) are a potential new component to be incorporated into existing aerospace structural composites for multi-functional (mechanical, electrical, thermal, etc.) property enhancement and tailoring. Traditional advanced fiber reinforced polymer composites are used for aerospace …
-
Experimental investigation of photocatalytic hydrogen production with boron-doped TiO2 and multi-walled carbon nanotubes-TiO2
… by UV light irradiated boron-doped TiO2 and carbon nanotube-TiO2 semiconductor photoelectrodes. The average current densities generated under potentiostatic scan for uncoated stainless steel, boron-doped TiO2 and carbon nanotube-TiO2 working electrodes are observed to be 112.51 mA /cm2, …
-
Degradation of Emerging Contaminants by Advanced Oxidation Using Multi-Walled Carbon Nanotubes and Continuous Ozone Injection
… study explored an AOP that utilizes ozonated multi-walled carbon nanotubes (MWCNTs) to generate •OH; past research has proven the success of this method of water treatment, showing a significant decrease in the effluent concentration of the tested compounds. However, these previous studies …
-
Effects of Multi-walled Carbon Nanotubes (MWCNTs) and Integrated MWCNTs/SiO2 Additives on Polymeric PVDF Membrane for Membrane Distillation
Multi-walled carbon nanotubes (MWCNTs) and integrated MWCNTs/ SiO2 nanoparticles (NPs) were loaded as additives into nanocomposite polyvinylidene fluoride (PVDF) membranes fabricated via phase inversion methods, and the effects of these additives on the structure and vacuum membrane distillation …
-
Processing, microstructure, and properties of carbon nanotube and silicon carbide composites
… of silicon carbide and silicon carbide with multi-walled carbon nanotubes. The work was completed to investigate the processing, microstructure, and properties of such materials. Various ceramic engineering techniques aided this investigation including powder processing, sintering, …
-
The influence of multi-walled carbon nanotubes on the properties of polypropylene nanocomposite. The enhancement of dispersion and alignment of multiwalled carbon nanotube in polypropylene nanocomposite and its effect on the mechanical, thermal, rheological and electrical properties.
Carbon nanotubes are known as ideal fillers for polymer systems; the main advantage of carbon nanotubes over other nano-reinforcing particles is the combination of superior strength and stiffness with large aspect ratio. Carbon nanotubes may improve the mechanical, electrical and thermal properties …
-
Removal of organic pollutants present in water using inorganic-organic Hybrid Multifunctional Nanocomposites
Novel multifunctional nanocomposites were synthesised for the removal of organic dye pollutants from contaminated water samples. Nanocomposites were functionalised to remove dyes via adsorption, photocatalytic breakdown and separation of the nanocomposites from water by simple magnetism. Two types …
-
Carbon Nanotube-Based Wearable Sweat Sensors; Design and Fabrication
… by sodium chloride ions. This thesis presents a multiplexing wearable sweat sensor using single and multi-walled carbon nanotubes. The wearable device houses pH, humidity, temperature and sodium chloride sensors. The potential change of a pH sensor is calibrated by measuring sodium chloride ion …
-
A magnetorheological study of single-walled and multi-walled carbon nanotube dispersions in mineral oil and epoxy resin.
Single wall carbon nanotubes (SWNTs) and multi-walled carbon nanotubes (MWNTs) were dispersed in mineral oil and epoxy resin. The magnetorheological properties of these dispersions were studied using a parallel plate rheometer. Strain sweeps, frequency sweeps, magneto sweeps and steady shear tests …
-
Impact of Porous Media Grain Size on the Transport of Multiwalled Carbon Nanotubes
… the mobility of one important nanomaterial (multi-walled carbon nanotubes or MWNTs) through porous media. Particular focus is placed on the impact of varying mean collector grain size on MWNT retention. Results from one dimensional column experiments conducted under various physical and …
-
Forced Convection in Microchannels with Nanostructures on One Wall
… silicon microchannels on whose bottom surfaces multi-walled carbon nanotubes are grown. The objective of the study is to investigate the effect of carbon nanotubes on the heat transfer characteristics. The heat sink size is 15 mm by 15 mm by 0.675 mm. It contains two microchannel designs. One …
-
Mechanics of deformation of carbon nanotubes
The deformation mechanics of multi-walled carbon nanotubes (MWCNT) and vertically aligned carbon nanotube (VACNT) arrays were studied using analytical and numerical methods. An equivalent orthotropic representation (EOR) of the mechanical properties of MWCNTs was developed to model the anisotropic …
-
Scanning electrochemical microscopy for the investigation of biosensors /
… with a conductive polymer - polypyrrole and multi walled carbon nanotubes for evaluating changes in the charge transfer. These modified cells were examined with atomic force microscopy, scanning electron microscopy, cyclic voltammetry and scanning electrochemical microscopy after the …
-
Control of carbon nanotube stiffness via tunable fabrication process parameters that determine CNT geometry
… that may be used to control the geometry of multi-walled carbon nanotubes (MWCNTs). The results may be used to grow MWCNTs with desired stiffness properties. This is important to devices that rely on the compliance of MWCNTs in order to achieve specific performance requirements, e.g. …
-
Scalable Electrochemical Surface Enhanced Raman Spectroscopy (EC-SERS) for bio-chemical analysis
… type of conducting nanopillar arrays composed of multi-walled carbon nanotubes (MWCNTs) doped polymeric nanocomposites, which are manufactured over the wafer-scale on both rigid and flexible substrates by direct nanoimprinting of perfluoropolyether nanowell-array templates into uncured …
-
Piezoresistive UHMWPE WMCNT Sensors for Instrumented Total Knee Replacements
… piezoresistive polymeric sensor. The addition of multi-walled carbon nanotubes (MWCNT) as electrically conducting fillers to the ultra-high molecular weight polyethylene (UHMWPE) transforms the electrically insulating UHMWPE to a nano-composite whose resistance changes with the applied stress. A …
Page 1 of 5