تصفح Research Units حسب العنوان
السجلات المعروضة 4146 -- 4165 من 4992
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Sustainable Preparation of Graphene Quantum Dots for Metal Ion Sensing Application
( MDPI , 2023 , Article)Highlights: What are the main finding? Preparation of GQDs from ethanolic extract of eucalyptus tree leaves. Hydrothermal treatment of extract at different temperatures and times was carried out. What is the implication ... -
Sustainable Preparation of Graphene Quantum Dots from Leaves of Date Palm Tree
( American Chemical Society , 2023 , Article)The date palm (Phoenix dactylifera), a subtropical and tropical tree, included in the family Palmae (Arecaceae) is one of the oldest cultivated plants of mankind. Date palm is a major agricultural product in the semi-arid ... -
Sustainable production of nannochloris atomus biomass towards biodiesel production
( MDPI , 2020 , Article)Nannochloris atomus (QUCCCM31) is a local marine microalga showing potential to serve as renewable feedstock for biodiesel production. The investigation of the impact of temperature variation and nitrogen concentrations ... -
Sustainable Qatar : Social, Political and Environmental Perspectives
( Springer Singapore , 2023 , Book)This open access book provides a topical overview of the key sustainability issues in Qatar, focusing on environmental sustainability from a socio-political perspective. The transition to a sustainable Qatar requires ... -
Sustainable use of nanomaterials in textiles and their environmental impact
( MDPI AG , 2020 , Article)At present, nanotechnology is a priority in research in several nations due to its massive capability and financial impact. However, due to the uncertainties and abnormalities in shape, size, and chemical compositions, the ... -
Sustainable utilization of waste carbon black in alkali-activated mortar production
( Elsevier , 2021 , Article)This article investigates the potential utilization of waste carbon black (WCB) resulting from the aluminum industry as a by-product material in the fly ash-based geopolymer composites production. Experimental study was ... -
Synergetic Water Demand and Sustainable Supply Strategies in GCC Countries: Data-driven Recommendations
( Springer Science and Business Media B.V. , 2023 , Article)The Gulf Cooperation Council (GCC) countries, characterized with limited water resources and high oil/gas revenues, rely heavily on energy-intensive seawater desalination and non-renewable groundwater abstraction. The need ... -
Synergistic Behavior of Polyethyleneimine and Epoxy Monomers Loaded in Mesoporous Silica as a Corrosion-Resistant Self-Healing Epoxy Coating
( American Chemical Society , 2022 , Article)Corrosion is a significant problem and is, to a large extent, responsible for the degradation of metallic parts. In this direction, mesoporous silica particles (MSPs) were synthesized by a sol–gel technique and had an ... -
Synergistic effect of Co-Ni co-bridging with MoS2nanosheets for enhanced electrocatalytic hydrogen evolution reactions
( Royal Society of Chemistry , 2018 , Article)The depletion of fossil fuels and associated environmental problems have drawn our attention to renewable energy resources in order to meet the global energy demand. Electrocatalytic hydrogen evolution has been considered ... -
Synergistic effect of concentration and annealing on structural, mechanical, and room-temperature thermoelectric properties of n-type Ga-doped ZnO films
( Elsevier , 2024 , Article)The development of Ga-doped Zinc Oxide (GZO) films from nontoxic, abundant elements using a cost-effective and scalable approach is crucial for the profitability and sustainability of thermoelectric applications. Challenges ... -
Synergistic effect of Cu2+ in Fe2+/H2O2 reaction system to enhance oxytetracycline degradation in polluted water
( Institute for Ionics , 2023 , Article)The higher production of HO· concentration associated with the presence of a Cu2+ co-catalyst in a Fe2+/H2O2 system is reported. The synergistic effect of the co-catalyst was investigated to evaluate the possibility of ... -
Synergistic effect of expanded graphite, diammonium phosphate and Cloisite 15A on flame retardant properties of EVA and EVA/wax phase change blends
( Springer , 2015 , Article)The influence of the introduction of expanded graphite (EG), as well as combinations of EG with Cloisite 15A clay and diammonium phosphate (DAP), into EVA and an EVA/wax blend on the thermal stability and flammability of ... -
Synergistic effect of interfacial phenomenon on enhancing catalytic performance of Pd loaded MnO: X-CeO2-C hetero-nanostructure for hydrogenation and electrochemical reactions
( Royal Society of Chemistry , 2017 , Article)Hetero-nanostructures have proven to be impressive materials due to their multi-functionalities in various catalytic applications. Here, the basic focus has been devoted to interface chemistry among different domains in ... -
Synergistic effect of reduced graphene oxide layers wrapped in polyaniline sheets to porous blades for boosted oxygen evolution reaction
( Taylor & Francis , 2021 , Article)Electrochemical water splitting is a unique approach for producing renewable energy in hydrogen fuel, though it is limited due to the sluggish kinetics of oxygen evolution reaction (OER). To enhance the efficacy of hydrogen ... -
Synergistic effect of vanadium pentoxide and graphene oxide in polyvinyl alcohol for energy storage application
( Elsevier Ltd , 2016 , Article)A novel ultra-high-k composite material comprising of polyvinyl alcohol (PVA) as a polymer matrix and vanadium pentoxide (V2O5) and graphene oxide (GO) as fillers have been developed successfully using colloidal processing ... -
Synergistic Erosion-Corrosion Behavior of API X120 Steel
( Elsevier Ltd , 2020 , Conference Paper)The corrosive nature of fluid (oil and gas) and the presence of solid erodent particles in it causes the pipelines to experience severe erosion and corrosion during the transportation process. In this study, erosion-corrosion ... -
Synergistically interactive MnFeM (M = Cu, Ti, and Co) sites doped porous g-C3N4 fiber-like nanostructures for an enhanced green hydrogen production
( Royal Society of Chemistry , 2023 , Article)The use of a synergetic effect is an effective approach for promoting the green hydrogen evolution reaction (HER). However, ternary metal doped porous g-C3N4 fiber-like nanostructures have not been reported so far. Herein, ... -
Synthesis & Performance Evaluation of Hybrid Cathode Materials for Energy Storage
( Qatar University Press , 2021 , Poster)Research into the development of novel cathode materials for energy storage applications is progressing at a rapid rate to meet the ever-growing demands of modern society. Amongst various options, batteries are playing a ... -
Synthesis and characterisation of Co2+-incorporated ZnO nanoparticles prepared through a sol-gel method
( Elsevier B.V. , 2016 , Article)The properties of ZnO nanoparticles were modified by doping them with cobalt ions (Co2+) in various compositions through a sol-gel route. The Co2+-doped ZnO nanoparticles were characterised using X-ray diffraction (XRD), ... -
Synthesis and characterisation of Ni–B/Ni–P–CeO2 duplex composite coatings
( Springer Netherlands , 2018 , Article)Abstract: Binary (Ni–B, Ni–P) and duplex coatings (Ni–B/Ni–P, Ni–B/Ni–P–CeO2) with an inner Ni–B layer were electrodeposited on mild steel substrates. A comparison of the structural, surface, mechanical, and electrochemical ...