Materials Science & Technology: Recent submissions
Now showing items 161-180 of 311
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In-situ growth of single-crystal plasmonic aluminum–lithium-graphene nanosheets with a hexagonal platelet-like morphology using ball-milling
( Elsevier , 2021 , Article)Metal-graphene nanocomposites and plasmonic metal nanoparticles are two nanoscience fields of a rapidly growing interest due to their potential in advanced applications. In this study, we combine both fields by synthesizing ... -
Enhanced tensile strength, fracture toughness and piezoresistive performances of CNT based epoxy nanocomposites using toroidal stirring assisted ultra-sonication
( Taylor & Francis , 2021 , Article)The importance of proper CNT dispersion is still the main challenge in CNTs doped epoxy nanocomposites. Therefore, this study was aimed to investigate the effect of toroidal stirring-assisted sonication on final mechanical, ... -
The effects of structural integrity of graphene on the thermoelectric properties of the n-type bismuth-telluride alloy
( Elsevier , 2021 , Article)This study examines the effects of the structural integrity of graphene on the thermoelectric properties of n-type bismuth telluride alloy. Graphene/Bi2Te2.7Se0.3 composites were prepared via mechanical alloying and spark ... -
Efficient machine-learning model for fast assessment of elastic properties of high-entropy alloys
( Elsevier , 2022 , Article)We combined descriptor-based analytical models for stiffness-matrix and elastic-moduli with mean-field methods to accelerate assessment of technologically useful properties of high-entropy alloys, such as strength and ... -
Effect of graphene on thermal stability of tin selenide
( Elsevier , 2022 , Article)The thermal stability of polycrystalline tin selenide (SnSe) is essential for its long-term applications. In this study, the thermo-mechanical stability of hot compacted polycrystalline SnSe and SnSe/graphene nanocomposite ... -
Experimental and modeling analysis of p-type Bi0.4Sb1.6Te3 and graphene nanocomposites
( Elsevier , 2022 , Article)The state-of-the-art Bismuth-Telluride (Bi2Te3) based systems are promising thermoelectric materials for efficient thermoelectric applications. In this study, the effect of graphene nanosheets (GNS) integrity on thermoelectric ... -
Tunable metal contacts at layered black-arsenic/metal interface forming during metal deposition for device fabrication
( Nature Research , 2022 , Article)Understanding the kinetics of interfacial reaction in the deposition of metal contacts on 2D materials is important for determining the level of contact tenability and the nature of the contact itself. Here, we find that ... -
White graphene-cobalt oxide hybrid filler reinforced polystyrene nanofibers for selective oil absorption
( MDPI AG , 2020 , Article)In this work, stable hydrophobic nanocomposites are made from electrospun fibers of polystyrene (PS) containing a hybrid filler combination of (i) hexagonal boron nitride (hBN) and (ii) cobalt oxide (Co3O4) nanomaterials. ... -
Effect of anions on the structural, morphological and dielectric properties of hydrothermally synthesized hydroxyapatite nanoparticles
( Springer Nature , 2020 , Article)Synthetic nano hydroxyapatites (HA) have been considered as potential biomaterials for bone tissue engineering applications because of its excellent biological properties. The present work deals with the synthesis of HA ... -
Gas Sensing and Power Harvesting Polyvinylidene Fluoride Nanocomposites Containing Hybrid Nanotubes
( Springer , 2020 , Article)Gas sensing properties at room temperature and energy harvesting performances are realized for the polyvinylidene fluoride (PVDF) nanocomposites containing titanium dioxide (TiO2) nanotubes grown in the presence of carbon ... -
Electrospun nanofibers of PVDF-HFP composites containing magnetic nickel ferrite for energy harvesting application
( Elsevier Ltd , 2020 , Article)Nickel ferrite nanoparticles (NiFe2O4) synthesized by chemical co-precipitation method, are added to poly(vinylidene fluoride-co-hexafluoroproplyene) (PVDF-HFP) in specific concentrations (1, 2, and 3 wt%) and the composite ... -
Materials and technologies for the tertiary treatment of produced water contaminated by oil impurities through nonfibrous deep-bed media: A review
( MDPI AG , 2020 , Article)This review covers various aspects of the treatment of emulsified oil/water mixtures and is particularly focused on tertiary treatment, which means the reduction of the oil content from 70-100 ppm to below 10 ppm, depending ... -
Mesoporous silica filled smart super oleophilic fibers of triblock copolymer nanocomposites for oil absorption applications
( Springer Nature , 2020 , Article)Super oleophilic fibers of styrene-isoprene-styrene (SIS) block copolymer/mesoporous silica (MS) nanocomposites are fabricated by electrospinning, and their oil absorption efficiency is monitored by following two different ... -
Vertically oriented nanoporous block copolymer membranes for oil/water separation and filtration
( Royal Society of Chemistry , 2020 , Article)The separation of oil from water and filtration of aqueous solutions and dispersions are critical issues in the processing of waste and contaminated water treatment. Membrane-based technology has been proven as an effective ... -
Designing Flexible and Porous Fibrous Membranes for Oil Water Separation-A Review of Recent Developments
( Bellwether Publishing, Ltd. , 2020 , Article Review)Oil sorbent membranes are highly effective materials in combating oil spills. Recent technological advancements in membrane preparations permit higher oil-sorption efficiency and easier oil recoverability. This review ... -
The Effect of the Milling Vial Shape on the In-Situ Consolidation of a Nanocrystalline Al-Li-GNPs Nanocomposite Synthesized by Room Temperature Ball-Milling
( Frontiers Media , 2022 , Article)Several studies investigating the ball-milling of ductile face-centered cubic metals have reported a so-called in-situ consolidation phenomenon where the milled powder is also consolidated during the milling process. Thus, ... -
Mussel-mimicking sulfobetaine-based copolymer with metal tunable gelation, self-healing and antibacterial capability
( Elsevier B.V. , 2020 , Article)In the present study, the sulfobetaine-based copolymer bearing a dopamine functionality showed gel formation adjusted by the application of metal salts for gelation and various values of pH. Normally, the liquid-like ... -
Optimum sintering method and temperature for cold compact Bismuth Telluride pellets for thermoelectric applications
( Elsevier , 2021 , Article)This work intends to investigate the optimum sintering method and temperature that can improve the efficiency of bismuth telluride cold compact pellets, for the thermoelectric applications. Different p-type and n-type ... -
Membrane Distillation Crystallization Hybrid Process for Zero Liquid Discharge in QAFCO Plant
( Qatar University Press , 2021 , Poster)Qatar fertilizer company (QAFCO) is one of the world’s largest single site producer of ammonia and urea with production capacity of 12,900 metric tons per day. Currently, QAFCO faces major challenges in terms of water ... -
Enhancement of Adhesion Characteristics of Low-density Polyethylene Using Atmospheric Plasma Initiated-Grafting of Polyethylene Glycol
( Qatar University Press , 2021 , Poster)The low-density polyethylene/aluminum (LDPE/Al) joint in Tetra Pak food container provides stability and strength to food packaging, ensures protection against outside moisture, and maintains the nutritional values and ...
