Chemistry & Earth Sciences: المرسلات الحديثة
السجلات المعروضة 441 -- 460 من 614
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Sputtered manganese oxide thin film on carbon nanotubes sheet as a flexible and binder-free electrode for supercapacitors
( John Wiley and Sons Ltd , 2019 , Article)In this work, flexible carbon nanotubes (CNTs)/manganese oxide (MnO2) composite electrode was fabricated by direct deposition of MnO2 nanoparticles on CNTs sheet by RF magnetron sputtering. The surface morphology and ... -
Silica-based chelating resin bearing dual 8-Hydroxyquinoline moieties and its applications for solid phase extraction of trace metals from seawater prior to their analysis by ICP-MS
( Elsevier B.V. , 2019 , Article)Solid phase extraction (SPE) using chelating resins has been established as a convenient technique for samples pretreatment prior to trace metal analysis from complex matrices. Oxine chelating agents (e.g., 8-Hydroxyquinoline ... -
Kinetics of alkoxysilanes and organoalkoxysilanes polymerization: A review
( MDPI AG , 2019 , Article Review)Scientists from various different fields use organo-trialkoxysilanes and tetraalkoxysilanes in a number of applications. The silica-based materials are sometimes synthesized without a good understanding of the underlying ... -
Green Light-Responsive CO-Releasing Polymeric Materials Derived from Ring-Opening Metathesis Polymerization
( American Chemical Society , 2019 , Article)Carbon monoxide (CO) is an important biological gasotransmitter in living cells. Precise spatial and temporal control over release of CO is a major requirement for clinical application. To date, the most reported carbon ... -
Rational synthesis of ternary PtIrNi nanocrystals with enhanced poisoning tolerance for electrochemical ethanol oxidation
( Elsevier Inc. , 2019 , Article)The development of highly efficient and durable anode materials for ethanol electro-oxidation remains a challenge. Herein, we report the synthesis of Pt1−x−yIrxNiy nanocrystals via one-step procedure by ultrasonic-assisted ... -
Synthesis, structural and lithium storage studies of graphene-LiVSi 2 O 6 composites
( Institute for Ionics , 2019 , Article)Clinopyroxene LiVSi2O6 phase has been synthesised in this study by a single step solid state reaction in argon atmosphere at 900 °C, and its electrochemical properties have been investigated. Graphene composite of the ... -
The electronic origin of the ground state spectral features and excited state deactivation in cycloalkanones: the role of intermolecular H-bonding in neat and binary mixtures of solvents
( NLM (Medline) , 2019 , Article)In this study, a D-A cycloalkanone (K1) has been investigated by steady state absorption and fluorescence in neat solvents and in three binary mixtures of nonpolar aprotic/polar protic, polar aprotic/polar protic, and polar ... -
Efficient degradation of tannic acid in water by UV/H2O2 process
( Chinese Institute of Environmental Engineering , 2018 , Article)In this work, the degradation of tannic acid (TA) by UV/H2O2 process has been investigated. UV/H2O2 oxidation experiments were performed by UV irradiation at 254 nm of TA aqueous solutions in a photo-reactor. Firstly, the ... -
Bimetallic palladium-supported halloysite nanotubes for low temperature CO oxidation: Experimental and DFT insights
( Elsevier B.V. , 2019 , Article)The design and fabrication of novel metal-supported catalysts for energy conversion and heterogeneous catalysis is a pivotal theme. Herein, we present the synthesis of bimetallic palladium nanoalloys supported on halloysite ... -
Understanding the Origin of the Ultrahigh Rate Performance of a SiO2-Modified LiNi0.5Mn1.5O4 Cathode for Lithium-Ion Batteries
( American Chemical Society , 2019 , Article)LiNi0.5Mn1.5O4 (LNMO) is one of the most promising cathode materials for next-generation lithium-ion batteries for rapid charging–discharging applications. The surfaces of LNMO samples are coated with different amounts ... -
Thermochemistry and Kinetics of the Thermal Degradation of 2-Methoxyethanol as Possible Biofuel Additives
( Nature Publishing Group , 2019 , Article)Oxygenated organic compounds derived from biomass (biofuel) are a promising alternative renewable energy resource. Alcohols are widely used as biofuels, but studies on bifunctional alcohols are still limited. This work ... -
On Chip Optical Modulator using Epsilon-Near-Zero Hybrid Plasmonic Platform
( Nature Publishing Group , 2019 , Article)In this work, we propose a micro-scale modulator architecture with compact size, low insertion loss, high extinction ratio, and low energy/bit while being compatible with the silicon-on-insulator (SOI) platform. This is ... -
Design, structural, C–H….H–C supramolecular interactions and computational investigations of Cd(N∩N″)X2 complexes based on an asymmetrical 1,2-diamine ligand: physicochemical and thermal analysis
( Taylor and Francis Ltd. , 2019 , Article)Complexes [N∩N″CdX2] (X = Cl (1), I (2) and N∩N″ is N1,N1,N2-triethylethane-1,2-diamine) are reported. The desired complexes were prepared under identical synthetic conditions and characterized by ESI-MS, UV-vis, CHN-elemental ... -
Eco-structured biosorptive removal of basic fuchsin using pistachio nutshells: A definitive screening design-based approach
( MDPI AG , 2019 , Article)Biosorptive removal of basic fuchsin (BF) from wastewater samples was achieved using the recycled agro-wastes of pistachio nut shells (PNS). Seven adsorbents were developed; raw shells (RPNS) and the thermally activated ... -
AEO7 Surfactant as an Eco-Friendly Corrosion Inhibitor for Carbon Steel in HCl solution
( Nature Publishing Group , 2019 , Article)The impact of AEO7 surfactant on the corrosion inhibition of carbon steel (C-steel) in 0.5 M HCl solution at temperatures between 20 °C and 50 °C was elucidated using weight loss and different electrochemical techniques. ... -
An Innovative Platform Merging Elemental Analysis and Ftir Imaging for Breast Tissue Analysis
( Nature Publishing Group , 2019 , Article)Histopathology and immunohistology remain the gold standard for breast cancer diagnostic. Yet, these approaches do not usually provide a sufficiently detailed characterization of the pathology. The purpose of this work is ... -
Silicon–Germanium bilayer sputtered onto a carbon nanotube sheet as anode material for lithium–ion batteries
( Elsevier Ltd , 2019 , Article)In this work, multiwalled carbon nanotube-silicon/germanium (MWCNT-Si/Ge) electrodes were prepared by layer-by-layer deposition of Si and Ge films onto an MWCNT sheet using RF magnetron sputtering. The MWCNT-Si/Ge composites ... -
The inhibitive impact of both kinds of 5-isothiocyanatomethyl-8-hydroxyquinoline derivatives on the corrosion of carbon steel in acidic electrolyte
( Elsevier B.V. , 2019 , Article)Two new 8-hydroxyquinoline derivatives namely 1-((8-hydroxyquinolin-5-yl)methyl)-3-methylthiourea (HQMT) and 5-isothiocyanatomethyl-8-hydroxyquinoline (TCHQ) were synthesized and identified by various spectroscopic methods ... -
Indacenodithiazole-Ladder-Type Bridged Di(thiophene)-Difluoro-Benzothiadiazole-Conjugated Copolymers as Ambipolar Organic Field-Effect Transistors
( American Chemical Society , 2019 , Article)A series of four donor-acceptor conjugated copolymers P1-P4 with linear and branched side chains based on a ladder-type indacenodithiazole (IDTz) moiety containing an electron-deficient thiazole unit are copolymerized with ... -
Silicon nanofilms as anode materials for flexible lithium ion batteries
( Elsevier B.V. , 2019 , Article)Silicon (Si)-based anodes demonstrate great potential for the revolutionary enhancement in the energy storage of Li-ion cells. Unfortunately, these materials suffer from several shortcomings, such as high electrical ...
