Chemistry & Earth Sciences: Recent submissions
Now showing items 141-160 of 556
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Stratigraphy, faciès analysis and reservoir characterization of the Upper Jurassic Arab "C", Qatar, Arabian Gulf
( Gebruder Borntraeger Verlagsbuchhandlung , 2011 , Article)The Arab C is a member of the Jurassic Arab Formation, one of the largest carbonate reservoirs in the Arabian Basin. Detailed petrographic analysis of cores and thin sections from selected wells in the onshore Dukhan ... -
Mangrove-bearing limestone from the Eocene Dammam Formation, Arabian Gulf: Implications for the mangrove dispersal controversy
( springer link , 2012 , Article)Fossil mangrove remains are found within the shallow carbonate strata of the Middle Eocene Dammam Formation of the Arabian Gulf. This formation is of wide distribution across most eastern parts of the Arabian Platform and ... -
Effect of temperature and sunlight on the leachability potential of BPA and phthalates from plastic litter under marine conditions
( Elsevier , 2023 , Article)This study investigates the leaching potential of several additives embedded in six different plastic types when exposed to extreme simulated marine conditions for 140 days. The findings achieved herein contribute to a ... -
Regiospecific Photochemical Synthesis of Methylchrysenes
( MDPI , 2023 , Article)Methylated polycyclic aromatic hydrocarbons (PAHs) are suspected to be some of the toxic compounds in crude oil towards marine life and are needed as single compounds for environmental studies. 1-, 3- and 6-methylchrysene ... -
Systematic Molecular-Size Variants in Diphosphonate Inhibitors for Oilfield Scale Management
( American Chemical Society , 2023 , Article)Organophosphorus-based scale inhibitors (SIs) have been widely used in the petroleum industry for several decades. Among them, aminomethylenephosphonates (possessing at least one −NH+-CH2-PO3H- moiety) have shown outstanding ... -
Phosphonated Polyetheramine-Coated Superparamagnetic Iron Oxide Nanoparticles for Inhibition of Oilfield Scale
( American Chemical Society , 2023 , Article)Oilfield scale is one of the significant problems in hydrocarbon production in the oil and gas industry. Many research groups have attempted to develop greener chemicals to meet environmental regulations. Magnetic nanoparticles ... -
Flexible, Linear, and Systematically Expanded Tetraphosphonate Bolaamphiphiles and Their Inhibition Performance against Calcite and Barite Scale Formation
( American Chemical Society , 2023 , Article)Oilfield scaling is one of the most prevalent water-based oilfield production problems. Chemical inhibitors are often used to combat and prevent scale deposition. The phosphonate functional group is commonly used in many ... -
Tyrosinase and carbonic anhydrase enzymes inhibition studies of vanadium(V) complexes
( Chemical Society of Pakistan , 2018 , Article)Present study endeavors synthesis of series of vanadium(V) hydrazide complexes and its enzyme inhibition studies. Octahedral structure of complexes has been evaluated previously using conductance measurements, spectroscopic ... -
Advances in smart materials and applications
( Hindawi Publishing Corporation , 2014 , Other)[No abstract available] -
Temperature sensor based on composite film of vanadium complex (VO2(3-fl)) and CNT
( J. Semicond. , 2015 , Article)A vanadium complex (VO2(3-fl)) and CNT composite film based temperature sensor is reported in this study. Surface-type silver electrodes were deposited on the glass substrates. A thin film of VO2(3-fl) and CNT composite ... -
Chemistry and antioxidant properties of titanium(IV) complexes
( Kluwer Academic Publishers , 2015 , Article)The synthesis of titanium(IV) complexes with biologically active hydrazide ligands has been carried out. The complexes were characterized by spectroscopic methods (IR, <sup>1</sup>H NMR and <sup>13</sup>C NMR), elemental ... -
In vitro Synthesis, Structure Elucidation, and Antioxidant Properties of Platinum(IV)-hydrazide Complexes: Molecular Modeling of Free-Hydrazides Suggested as Potent Lipoxygenase Inhibitor
( Bentham Science Publishers , 2022 , Article)Background: A combination of biologically active ligand and metal in one molecule may increase the activity and reduce the toxicity. Objectives: In this study, the synthesis and characterization of platinum(IV) complexes ... -
Synthesis, characterization, lipoxygenase, and tyrosinase inhibitory activities of non- cytotoxic titanium(III) and (IV) hydrazide complexes
( Chemical Society of Ethiopia , 2023 , Article)Ti(III) and (IV) hydrazide complexes were synthesized, characterized, and screened for their tyrosinase and lipoxygenase inhibitory and cytotoxic activities. The geometry of Ti(III) hydrazide complexes is tentatively ... -
The contribution of mediated oxidation mechanisms in the electrolytic degradation of cyanuric acid using diamond anodes
( IOS Press , 2015 , Article)In this work, the contribution of mediated oxidation mechanisms in the electrolytic degradation of cyanuric acid using boron-doped diamond (BDD) anodes was investigated in different electrolytes. A complete mineralization ... -
Electrochemical reduction of carbon dioxide to hydrocarbons
( Elsevier , 2022 , Book chapter)Global accumulation of CO2 in the atmosphere has become a significant environmental challenge in the past twodecades. Global warming and climate change resulting from increasing concentrations of CO2 are of utmost concern ... -
Biodegradable Preformed Particle Gel (PPG) Made of Natural Chitosan Material for Water Shut-Off Application
( MDPI , 2023 , Article)Oil and gas extraction frequently produces substantial volumes of produced water, leading to several mechanical and environmental issues. Several methods have been applied over decades, including chemical processes such ... -
Polymer-metal oxide composite nanofibers
( Elsevier , 2021 , Book chapter)Extensive studies have been conducted on different kinds of polymers, their composites, and multifunctionalities, depending on their structural features. Metal oxides and their polymer nanocomposites offer technological ... -
Polymer-metal oxide composite nanofibers
( Elsevier , 2021 , Book chapter)Extensive studies have been conducted on different kinds of polymers, their composites, and multifunctionalities, depending on their structural features. Metal oxides and their polymer nanocomposites offer technological ... -
Novel Polyepoxysuccinic Acid-Grafted Polyacrylamide as a Green Corrosion Inhibitor for Carbon Steel in Acidic Solution.
( American Chemical Society , 2023 , Article)Utilizing green corrosion inhibitors has been classified among the most efficient and economical mitigation practices against metallic degradation and failure. This study aims to integrate the features of green and ... -
The nature and kinetics of the adsorption of dibenzothiophene in model diesel fuel on carbonaceous materials loaded with aluminum oxide particles
( Elsevier B.V. , 2019 , Article)The resulted environmental and industrial problems from presence of sulfur compounds such as dibenzothiophene (DBT) in some fuel led to attract greater interest in research on the removal of these compounds. In this study ...