Listar por tema "Spectroscopy"
Mostrando ítems 1-11 de 11
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Characterization of amine stabilized CdSe/ZnS core–shell quantum dots by using triarylpyrylium dyes
Royal Society of Chemistry (2016-06-13)A new method to study the stabilizing primary amine ligands coordinated to the surface of CdSe/ZnS core–shell quantum dots has been developed. The method is based on the reactivity of fluorescent 2,4,6-triarylpyrylium dyes ... -
Crystal structure of NaCd(H2PO3)3·H2O and spectroscopic study of NaM(H2PO3)3·H2O, M= Mn, Co, Ni, Zn, Mg and Cd
Copyright © 2016 Elsevier Ltd. All rights reserved. (2016-01-11)NaCd(H2PO3)3·H2O was synthesized in solution and its structure was studied by single-crystal X-ray diffraction. It crystallizes in the orthorhombic system (Pbca, Z = 8) with the cell parameters: a = 9.2895(14) Å, b = ... -
Cuboidal Mo3S4 and Mo3NiS4 Complexes Bearing Dithiophosphates and Chiral Carboxylate Ligands: Synthesis, Crystal Structure and Fluxionality
Wiley (2011-02)New triangular Mo and W cluster complexes incorporating (S)-lactic acid (HLac), [Mo3S4(μ-Lac)(dtp)3(py)] (1) and [W3S4(μ-Lac)(dtp)3(py)] (2), were prepared [dtp = (EtO)2PS2]. Analogous synthetic procedures were adapted for ... -
Describing the molecular mechanism of organic reactions by using topological analysis of electronic localization function
Bentham Science Publishers (2011)Here, we provide an essay on the analysis of the reaction mechanism at the molecular level; in particular, the evolution of the electron pair, as it is provided by the ELF, is used to decribe the reaction pathway. Then, ... -
Fingerprints of Short-Range and Long-Range Structure in BaZr1−xHfxO3 Solid Solutions: An Experimental and Theoretical Study
Royal Society of Chemistry (2015)A microwave-assisted hydrothermal method was applied to synthesize BaZr1xHfxO3, (BZHO) solid solutions at a low temperature, 140 1C, and relatively short times, 160 min. The detailed features of the crystal structure, ... -
High prevalence of microplastics in the digestive tract of Scyliorhinus canicula (Linneaus, 2 1758) shows the species biomonitoring potential
Elsevier (2024-01-24)Plastic pollution is widespread in oceans and the ingestion of plastic by marine organisms is causing concern about potential adverse effects. The purpose of this study was to analyze the different types of plastics in ... -
Impedance spectroscopic analysis of high-performance dye sensitized solar cells based on nano-clay electrolytes
Elsevier (2016)In this work we present quasi-solid state dye-sensitized solar cells obtained employing artificial hydrotalcite nano-clay as electrolyte additive, with a greatly improved photo-energy conversion efficiency of up to 10.9% ... -
Impedance spectroscopy characterisation of highly efficient silicon solar cells under different light illumination intensities
Royal Society of Chemistry (2009)Highly efficient silicon solar cells have been characterised by impedance spectroscopy and current–potential characteristic in the dark and with different illumination intensities. For each illumination the impedance ... -
On the reversed crystal growth of BaZrO3 decaoctahedron: shape evolution and mechanism
Royal Society of Chemistry (2011)BaZrO3 (BZO) nanoparticles were nucleated, grown and subsequently self-assembled into a 3D decaoctahedronal architecture via a microwave-assisted hydrothermal (MAH) method. X-Ray diffraction (XRD), field emission scanning ... -
Study of Cr-SnO2 ceramic pigment and of Ti/Sn ratio on formation and coloration of these materials
Elsevier (2007)In this study, CrxSn1−xO2 (0 ≤ x ≤ 0.06) and Cr0.03Sn0.97−yTiyO2 (0 < y ≤ 0.97) compositions were synthesized by the ceramic method and characterized by X-ray diffraction, UV–vis spectroscopy and CIE L*a*b* (Commission ... -
The puzzling issue of silica toxicity: are silanols bridging the gaps between surface states and pathogenicity?
Springer Nature (2019)Background: Silica continues to represent an intriguing topic of fundamental and applied research across various scientific fields, from geology to physics, chemistry, cell biology, and particle toxicology. The pathogenic ...