Materials Literature
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Triglycine sulfate (TGS) is one of the most intensively investigated ferroelectrics. Though the domain structure is an important subject in the research of ferroelectricity, the domain in TGS is invisible by usual optical method. Many substitutive methods have been developed for the observation of static and dynamic d…
In this paper, the structural and electronic properties of ternary SnSxSe1−x semiconductor nanocrystals were systematically investigated through both experimental and computational methods. It reveals that the Eg can be modulated from 0.92 to 1.24 eV in an intrinsic linear variation by controlling the ratio of S/(S +…
We demonstrated the formation of monodispersed spherical aluminum hydrous oxide precursors with tunable sizes by controlling the variables of a forced hydrolysis method. The particle sizes of aluminum hydrous oxide precursors were strongly dependent on the molar ratio of the Al(3+) reactants (sulfates and nitrates). I…
The reaction of N,N-bis(2-pyridylmethyl)-2-aminoethanol (bpaeOH), NaSCN/NaN(3), and metal (M) ions [M = Mn(II), Fe(II/III), Co(II)] in MeOH, leads to the isolation of a series of monomeric, trimeric, and tetrameric metal complexes, namely [Mn(bpaeOH)(NCS)(2)] (1), [Mn(bpaeO)(N(3))(2)] (2), [Fe(bpaeOH)(NCS)(2)] (3), [F…
A series of layered double hydroxides (LDHs) based composites were synthesized by using an induced hydrolysis silylation (IHS) method, surfactant precursor method, in situcoprecipitation method, and direct silylation method. Their structures, morphologies, bonding modes and thermal stabilities can be readily adjusted…
By using aminosugars, a series of multipodal gold nanostructures has been obtained via a one-pot chemical reduction method in aqueous solution and at room temperature. The size and shape of these NPs were controlled either by adjusting the amount of reducing agent or by quenching the reaction at a given time.
A process model for the crystallization of L-phenylalanine crystals from mixed propanol–water solution, an enantiotropic system, is developed with nucleation and growth kinetics estimated for the anhydrate and monohydrate forms using in situATR-FTIR spectroscopy and laser backscattering. A challenging aspect of estima…
In the present work, chemical modification of the sugarcane bagasse fibers by estherification through anhydride system was studied to use as reinforcement in polyester matrix. Sugarcane bagasse fibers were estherified during 5 hours with acetic anhydride, toluene, acetic acid and percloric acid. The modification the f…
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Oxidative aromatic coupling of meso-substituted porphyrins bearing one electron-rich naphthalene unit has been studied in detail. After thorough optimization of oxidant, naphthalene-fused porphyrins were prepared in high yield without contamination from chlorinated side-products using Fe(ClO(4))(3)·2H(2)O. Copper and…
Platinum nanoparticles have industrial application, for example in catalysis, and are used in consumer products such as cosmetics and supplements. Therefore, among the many nanoparticles, platinum is one of the more accessible nanoparticles for consumers. Most platinum nanoparticles that are used in cosmetics and supp…
Polyaniline-fly ash (PANI-FA) composites were prepared by oxidative polymerization of aniline with fly ash in presence of ammonium persulphate (APS). The PANI-FA composites were prepared with different concentrations of fly ash to aniline ratio. The composites, so prepared, were characterized by UV-vis spectroscopy, F…
The preparation of polymer blends of poly (lactic acid) (PLA), Poly(butylene-succinate-co-adipate)(PBSA) and poly)butylene adipate-co-terephthalate((PBAT) were studied with the objectives to apply to blown film extrusion method. The blends were prepared using twin-screw extruder. The ratio of PLA and PBSA was fixed at…
Ba1−xDyxTi1−xScxO3 ceramics, 0 ≤ x ≤ 0.075, were prepared and the influence of Dy and Sc co-doping on the ferroelectric, electrical and structural properties of BaTiO3 (BT) investigated. A solid solution limit of x ≈ 0.05 was established using X-ray diffraction, and all compositions x ≤ 0.05 were tetragonal at room te…
Tautomerism process of single fluorescent molecules was studied by means of confocal microscopy in combination with azimuthally or radially polarized laser beams. During a tautomerism process the transition dipole moment (TDM) of a molecule changes its orientation which can be visualized by the fluorescence excitation…
Abstract This research work presents a study of the combined influence of the partial pressure of hydrogen sulfide (H2S) and the concentration of free acetic acid (CH3COOH) on the general and localized carbon dioxide (CO2) corrosion at the bottom of the line. Experiments were carried out for up to 21 days in three 4-i…
The last two decades have witnessed an exponential growth of investigations into the application of nanomaterials for drug delivery. A majority of these investigations have focused on either passive or controlled or targeted drug delivery. However, a combination of these attributes and, most importantly, spatiotempora…
The effects of Zr addition on the microstructure and magnetic properties of the sintered NdFeB magnets were investigated by X-ray diffraction (XRD) and BH magnetic tester. The XRD analysis showed that both the Zr-free and Zr-doped samples are composed of main amount of Tetragonal phase Nd2Fe14B (P42/mnm) and trace amo…
Iron-stabilized aluminum titanate powder was prepared via the non-hydrolytic sol-gel method,using anhydrous aluminum chloride and titanium tetrachloride as precursors,anhydrous ethanol as oxygen donor,iron powder,iron chloride and iron ethoxide as iron stabilizers.The effect of iron stabilizers on the low-temperature…
Aluminum titanate nanopowder was prepared by the nonhydrolytic sol-gel method(NHSG) at low temperature,using anhydrous aluminum chloride and titanium tetrachloride as precursors,butanol as oxygen donor,polyethylene glycol(PEG) as dispersant.The influence of precursor concentrations,different gelation processes and PEG…