Materials Science & Technology: Recent submissions
Now showing items 41-60 of 66
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The Influence of Carbon Nanotubes on the Thermoelectric Properties of Bismuth Telluride
(2020 , Professional Masters Project)Thermoelectric materials are devices that have the ability to convert waste heat to electricity. The widespread use of thermoelectric materials is currently limited by the low value of their figure-of-merit (ZT). Bismuth ... -
Study of the Ion Interclation Mechanism in Mxene Membrane for the Water Treatment Applications
(2020 , Master Thesis)MXene membrane consists of free-standing layers of a 2D material, namely MXene, which is attracting growing interest due to its conductivity and well-defined interlayer distance and slit-like channels, making it ... -
Impact of Prolonged Exposure to Sour Service on the Mechanical Properties and Corrosion Mechanism of Nace Carbon Steel Material Used In Wet Sour Gas Multiphase Pipeline in Qatar
(2020 , Master Thesis)Oil and Gas industries involve severe corrosive/sour environmental conditions due to H2S and CO2 and moisture content. The National Association of Corrosion Engineers, NACE, has developed standards to enable the users ... -
Optimization and Stabilization of P-Type BISBTE/GRAPHENE Nanocomposites for Efficient Thermoelectric Energy Conversion
(2020 , Master Thesis)The state-of-the-art Bismuth Antimony Telluride (BiSbTe) alloys have a promising potential to advance thermoelectric applications in energy harvesting for efficient power generation and active refrigeration. In this ... -
THE INFLUENCE OF SHEAR STRESS ON NANOMATERIAL'S UPTAKE BY CANCER
(2020 , Master Thesis)Recently, nanotechnology products have been used for a variety of applications including the medical field. Two dimensional (2D) nanomaterials have attracted a growing interest due to its unique properties and ultrathin ... -
PREPARATION OF POLYSTYRENE/ NICKEL OXIDE NANOCOMPOSITE SUPERHYDROPHOBIC COATING FOR PROTECTION AGAINST CORROSION
(2020 , Master Thesis)Many technologies have been studied carefully to overcome the corrosion phenomenon of various metal species found in nature. Among these, the high water repellent surfaces have received significant attention from researchers ... -
Preparation And Characterization Of Multilayered Electrospun Composite Scaffolds For Biomedical Applications
(2019 , Master Thesis)Electrospinning has gained wide attention recently in biomedical applications. Electrospun biocompatible scaffolds are well-known for biomedical applications such as drug delivery, wound dressing and tissue engineering ... -
Polymer-Matrix Nanocomposite Membranes For Water Treatment
(2019 , Master Thesis)A new generation of advanced fibrous materials with high surface area, large number of pores, high flexibility and adjustable wettability were manufactured from different materials which are viable for many applications ... -
Preparation and characterization of flexible all solid state CNT/MnO2 Supercapacitors
(2018 , Master Thesis)In this work, CNTs/MnO2 hybrid supercapacitors were prepared using RF magnetron sputtering as deposition technique. The as-prepared composite materials were characterized by different morphology and spectroscopy techniques, ... -
Thermoelectric Behavior of Nanocrystalline Tin Selenide Nanocomposites
(2018 , Master Thesis)Thermoelectric technology converts thermal energy to electricity. Many studies were conducted on thermoelectric materials such as Bismuth Telluride and Lead Telluride. And the goal was to achieve an average ZT >2 which is ... -
Single Step Electrodeposition of CZTS Absorber Layer for Solar Cells Application
(2018 , Master Thesis)Nowadays, one of the most critical issues in photovoltaic (PV) industry is the fabrication of an efficient and low cost solar cells. The solar energy have to be more efficient and cost effective than other electricity ... -
NEW SULFUR-DOPED CARBON FIBER – SUPPORTED ALLOYS FOR ELECTROCATALYTIC REDUCTION OF OXYGEN FOR PEM FUEL CELLS APPLICATIONS
(2018 , Master Thesis)The daily increase in the world needs for new sources of energy, the population and economy growth, and the industrial expansions made the demand for new sources of energy a critical request within different societies. ... -
CARBON BASED CONDUCTIVE FIBERS FOR FUEL CELL APPLICATION
(2018 , Master Thesis)A novel catalyst consists of a group of metals (Ni, Co and Cu) deposited on carbon fiber support and was prepared for oxidation using methanol and ethanol in alkaline medium. The carbon fiber support was fabricated by ... -
Corrosion inhibition of Mild Steel at Elevated temperature in highly Acidic Brines using a green corrosion inhibitor
( Material Science and Technology , 2017 , Master Thesis)Corrosion Inhibition of mild steel in 5 M Hydrochloric acid solution at different temperatures was investigated using a new green corrosion inhibitor (lauramidopropylamine oxide). Various electrochemical techniques and ... -
Er Doped III-Nitride Semiconductors
(2017 , Master Thesis)Erbium ions (Er3+) doped in a solid material enables the intra 4f shell transitions from its first excited state (4I13/2) to the ground state (4I15/2). The intra-4f shell transition at 1540 nm is of exceptional interest ... -
Properties and thermal stabilization of Nanocrystalline copper via solute additions of niobium
(2017 , Master Thesis)Nanocrystalline materials, those with grain size <100 nm, were found to have superior mechanical properties compared to their coarse-grained (CG) counterparts. However, these materials are not thermally stable because of ... -
NEW FLEXIBLE POLYVINYLIDENE FLUORIDE NANOCOMPOSITES FOR FUTURE APPLICATIONS
(2017 , Master Thesis)In this work, we report novel flexible polyvinylidene fluoride (PVDF) hybrid pressure sensors with good mechanical properties. Hybrid combinations of reduced graphene oxide (rGO) with different nano metal oxides -titanium ... -
MOLECULAR LEVEL UNDERSTANDING OF NANOCLAY DISPERSION IN POLYSULFONE, POLYIMIDE, AND THEIR BLEND COMPOSITES
(2016 , Master Thesis)Polymer composites based on polysulfone (PSF) and polyimide (PI) are used as membranes for gas separation and water purification applications. However, structure composition related issues limit the performance of the used ... -
SYNTHESIS AND PROPERTIES OF NANOCRYSTALLINE BI-TE BASED THERMOELECTRIC MATERIALS FOR ENERGY APPLICATION
(2016 , Master Thesis)Thermoelectric phenomenon is the science associated with converting thermal energy into electricity based on the Seebeck effect. Bismuth telluride Bi2Te3 is currently considered to be the state-of-the art thermoelectric ... -
Heat Absorbers based on Recycled Polyethylene and Paraffin Wax for Energy Storage
(2016 , Master Thesis)The building sector is one of the main sectors in Qatar; however, it consumes a huge portion of primary energy sources. Today, there is a worldwide trend to utilize renewable sources of energy to cover buildings’ energetic ...
