Materials Literature
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The present paper describes the studies on the adsorption behavior and charge transfer from isonicotinic acid to silver nanoparticles with experiment and theory. Compared with UV–Visible adsorption spectrum, the adsorption spectrum of Ih-Ag13 cluster was quite good agreed with that of silver colloidal nanoparticle. So…
The magnetism of La${}_{0.7}$Ca${}_{0.3}$MnO${}_{3}$ (LCMO) epitaxial thin films grown on SrTiO${}_{3}$ (STO) and BaTiO${}_{3}$ (BTO) substrates is studied using polarized neutron reflectometry (PNR) and ferromagnetic resonance (FMR) techniques. In LCMO/BTO, PNR reveals a strongly suppressed magnetization of 300 kA/m,…
Biofilm formation with eight different microscopic fungi on the polyaniline surface and its effect on the morphological, electrochemical and redox properties have been studied. The investigations on selected Chrysosporium merdarium and Rhizomucor pusillus fungi behavior were performed. Conspicuous difference in the ox…
A series of new dicationic sensitizers that are hybrids of pyrylium salts and viologens has been synthesized. The electrochemical and photophysical properties of these "pyrylogen" sensitizers are reported in sufficient detail to allow rationale design of new photoinduced electron transfer reactions. The range of their…
Eins mit der Oberfläche: Elektroden können mit endständigen Alkinen und Alkenen modifiziert werden. Die direkte Oxidation dieser Einheiten bewirkt eine effiziente Verknüpfung mit Glaskohlenstoff-, Gold-, Platin- und Indiumzinnoxid-Oberflächen. Verschiedene Ferrocenderivate und 5,10,15,20-(4-Ethinylphenyl)porphyrin wur…
Nanocomposites of plasticized-poly(vinyl chloride) (PVC) filled with different contents (3-9 parts by weight per hundred of PVC resin) of nanosilica (nSiO2), nanosized poly(methyl methacrylate) (nPMMA) and PMMA-grafted-nanosilica (PMMA-nSiO2) were investigated in this study. nPMMA and PMMA-nSiO2 were synthesized via d…
Morphotropic phase boundary (MPB) in ferroelectric materials leads to improved properties due to the structural instability. The manganese modified Pb(In1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-PbTiO3 crystals with MPB composition were investigated, the structure/property relationship was established. The tetragonal side MPB (coe…
In this study, the novel thermally stable poly(urethane-imide)s (PUIs) were synthesized. The structures of the obtained polymers were confirmed by FT-IR and NMR techniques. The molecular weight distribution parameters of the synthesized PUIs were determined by the size exclusion chromatography (SEC). The synthesized P…
Nanomaterials are typically defined as particles with at least one dimension measuring < 100 nm. Limited information is currently available and more research is needed regarding the occurrence of these materials in source water and the effectiveness of water treatment processes at removing engineered nanomaterials.…
We performed synthesis and investigated the self-assembly properties of gold nanoparticles (NPs) with covalently attached bolaamphiphilic ligands (B-AuNPs). The judiciously designed coating rendered the NPs amphiphilic and induced their self-assembly. The B-AuNPs formed ordered two-dimensional structures over large ar…
We report for the first time the use of p-toluene sulphonic acid (PTSa) and other sulphonic acids as trace-free oxidants for polymerisation of poly (bi-) and (ter-) thiophene. Sulphur is reduced from the oxidation state +6 to +4, leaving only SO2 and an aromatic compound to evaporate during the polymerisation.
We report on the first simultaneous observations of both electronic and structural temperature-induced insulator-to-metal transition (IMT) in VO2 ultrathin films, made possible by the use of broad range transmission infrared spectroscopy. Thanks to these techniques, the infrared phonon structures, as well as the appea…
Reactions of the tetraphosphine ligand N,N,N',N'-tetra(diphenylphosphanylmethyl)ethylene diamine) (dppeda) or 1,4-N,N,N',N'-tetra(diphenylphosphanylmethyl)benzene diamine (dpppda) with NiCl2, ancillary ligand (C2H5)2NCS2Na (Na(dtc)) and NH4PF6 afforded two binuclear complexes [(dtc)Ni(dppeda)Ni(dtc)](PF6)2 (1) and [(d…
Abstract Electrospinning of a poly( ε ‐caprolactone) ( PCL )/lactic acid ( LA ) blend was investigated to fabricate electrospun PCL fibers with improved biodegradability and biocompatibility for biomedical applications. Simple blending of PCL solution with various amounts of LA was used for electrospinning, and the ph…
The blue emission of Ca3SnSi2O9 was identified to arise from the recombination of electrons and holes via intrinsic oxygen vacancy defects using photoluminescence spectra measurements, density functional theory calculations, and thermoluminescence analysis. A significant enhancement in the photoluminescence intensity…
The nuclear magnetic resonance (NMR) spectra of single-anion bridged, dinuclear copper(II) metallacycles [Cu2(μ-X)(μ-L)2](A)3 (L(m) = m-bis[bis(1-pyrazolyl)methyl]benzene: X = F(-), A = BF4(-); X = Cl(-), OH(-), A = ClO4(-); L(m)* = m-bis[bis(3,5-dimethyl-1-pyrazolyl)methyl]benzene: X = CN(-), F(-), Cl(-), OH(-), Br(-…
The efficiency of disintegration of sewage sludge cells microorganisms were characterized using biochemical parameters such as COD, phosphate, ammonium nitrogen and proteins. The investigated process was additionally assessed using the coefficient DD (Degree of Disintegration). It has been demonstrated that a 30-min o…
The thermoelectric properties of magnesium silicide samples prepared by Vacuum Plasma Spray (VPS) are compared with those made from the conventional hot press method using the same feedstock powder. Thermal conductivity, electrical conductivity, Seebeck coefficient, and figure of merit are characterized from room temp…
Nanocomposites based on biodegradable poly(3-hydroxybutyrate) (PHB) and two types of organically modified layered silicates, cloisite 30B (C30B) and montmorillonite grafted-poly(ϵ-caprolactone) (MPCL), were prepared through solution intercalation technique. The thermal properties of PHB/nanocomposites at different org…
Abstract A series of CuO/Ce 0.6 Zr 0.4 O 2 catalysts doped with rare earth (Y, La) oxides and transition metal (Fe, Co, Ni) promoters were synthesized by the coprecipitation method. The effects of the additive type and content on the structure, redox properties, and water‐gas shift (WGS) catalytic activity were invest…