Browsing Materials Science & Technology by Publication Date
Now showing items 21-40 of 52
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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 ... -
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, ... -
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 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 ... -
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 ... -
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 ... -
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 ... -
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 ... -
Designing Flexible and Porous Polystyrene/Silver Doped Zinc Oxide Nanocomposite Fiber Sorbents for Oil/Water Separation
(2020 , Master Thesis)The aim of this work is to fabricate hydrophobic porous nanocomposite with enhanced oil adsorption capacity and multifunctional features including antibacterial and photocatalytic effect. Zinc oxide (ZnO) and silver doped ... -
Fabrication of Heterostructured TiO2 Nanorods for Enhanced Solar Water Splitting
(2020 , Master Thesis)As global population growth and energy demand keep to ramp up, green and sustainable energy production with environmental concerns has become as one of the most serious challenges over the past years. Photocatalysis is a ... -
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 ... -
Controlled Fabrication of Efficient Porous Multifunctional Nanocatalysts for The Gas Conversion Reactions to Usable Fuels: A Closer Step for Commercialization
(2020 , Master Thesis)Carbon-based (CNs) nanostructures attracted great attention in various conversion energy technologies, owing to their unique"physicochemical properties such as high surface area, abundant active sites, and stability. Herein, ... -
Enhancing the Thermoelectric Properties of N-type Bismuth-Telluride-Based Alloys Using Graphene As A Nanofiller
(2020 , Master Thesis)Bismuth telluride chalcogenides are the ideal thermoelectric materials used for near room temperature applications. However, the usage of these materials is relegated to a few applications as a result of the extremely low ... -
Designing of polyethylene-based material modified by plasma discharge for water/oil separation
(2021 , Master Thesis)Produced water (PW) from petrochemical industries is one of the largest wastewaters generated in Qatar. Soluble and insoluble oil contaminants occur in this water and must be removed if water will be used or discharged ... -
ENHANCING THE FOULING RESISTANCE AND REJECTION OF CELLULOSE ACETATE [CA] /MXENE [𝑇𝑖3𝐶2𝑇𝑥] NANOCOMPOSITE MEMBRANES
(2021 , Master Thesis)Obstacles in the membrane-based separation field are mainly related to membrane fouling. This study synthesized a pioneering covalently crosslinked cellulose acetate anti-fouling mixed matrix membrane containing between ... -
Relationship between structure, properties and UV/Heat protection behavior of two different types of polyethylene manufactured in Qatar
(2021 , Professional Masters Project)Accelerated (artificial) weathering and thermal ageing tests were performed to investigate the effectiveness of different UV/HALS formulations in reducing the UV/heat degradation effect for two different low-density ... -
Nutrient consumption over time in plant litter decomposition in drylands: effects of different species mixtures and Photodegradation
(2021 , Professional Masters Project)Plant litter decomposition in soil is a dynamic process that is affected and regulated by several factors. Soil microbial activity, light intensity, litter composition and habitat all affect the rate of decomposition ... -
Nip/Zno-Doped C3n4 Nanocapsules: A New Highly Corrosion-Resistant Electroless-Plated Coating with Superior Mechanical and Antibacterial Properties
(2021 , Master Thesis)Carbon nitride (C3N4) nanomaterials has superior mechanical, thermal and tribological properties, which make them attractive for various applications including corrosion resistant coatings. In this research, newly ... -
Fabrication of Nano-Composite Membrane for FO Desalination
(2021 , Master Thesis)The aim of this work is to solve the current issues experienced in forward osmosis (FO) membranes such as low water flux, membrane fouling, and high reverse solute flux (RSF). We also propose a novel technique to ...
