Visualitzant QUIO_Articles per títol
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Ultrafast Synthesis and Coating of High Quality β-NaYF4:Yb3+,Ln3+ Short Nanorods
American Chemical Society (2017-11)An ultrafast route to prepare up-converting single β-phase NaYF4:Yb3+,Ln3+ (Ln: Er, Tm, or Tb) short nanorods (UCNRs) of high quality was developed. This new procedure affords reactive-surface nanorods that are easily ... -
Understanding the rapid reoxidation process and the electrical properties of Spark Plasma sintered pyrochlores
(2024-02-07)Pyrochlore structures with composition Pr2−xSmxZr2O7 (x = 0, 1, and 2) were synthetized and studied. Spark Plasma Sintering (SPS) was employed to produce ceramics with over 95% of relative density. The reoxidation behavior ... -
Unraveling the Molecular Recognition of Amino Acid Derivatives by a Pseudopeptidic Macrocycle: ESI-MS, NMR, Fluorescence, and Modeling Studies
American Chemical Society (2009)The binding between a pseudopeptidic macrocyclic naphthalenophane and different N-protected amino acid derivatives has been thoroughly studied by ESI-MS, NMR, fluorescence, and molecular modeling. Careful NMR titration ... -
Unraveling the superior role of dicarboxylic acids as surface chelators in Eu3+-doped yttrium fluorides: A systematic modulation of the crystal phases and morphologies for highly tuned optical performance
Elsevier (2021-06-16)Eu3+-doped YF3 and KY3F10 phosphors have been prepared hydrothermally in a wide range of pH values without the use of surface chelators and adding oxalic or tartaric acid. We have proved, for the first time, the usefulness ... -
Unravelling the Supramolecular Driving Forces in the Formation of CO2-Responsive Pseudopeptidic Low-Molecular-Weight Hydrogelators
MDPI (2022): A new family of C2 -symmetric pseudopeptides with a high functional density for supramolecular interactions has been synthetized through the attachment of four amino acid subunits to a diamino aliphatic spacer. The ... -
Unveiling anion-induced folding in tripodal imidazolium receptors by ion-mobility mass spectrometry
The Royal Society of Chemistry (2021-08-02)The anion-induced folding of tripodal imidazolium receptors has been investigated by NMR spectroscopy, electrospray ionization ion mobility mass spectrometry and DFT calculations. Such folding can be switched by anion ... -
Unveiling the Potential of BenzylethyleneAryl–Urea Scaffolds for the Design of New Onco Immunomodulating Agents
MDPI (2023)This work focuses on the development of thirteen benzylethylenearyl ureas and one carbamate. After the synthesis and purification of the compounds, we studied their antiproliferative action on cell lines, such as HEK-293, ... -
Upgrading biomass to high-added value chemicals: synthesis of monoterpenes-based compounds using catalytic green chemical pathways
Elsevier (2024-04-08)Monoterpenes derived from various biomass constitute an important platform for synthesizing fragrances, intermediates, and pharmaceuticals. In this review, the most recent and relevant transformations of terpenes are ... -
Use fluorescence spectroscopy to study polymeric materials with porous structure based on imprinting by self-assembled fibrilar networks
American Chemical Society (2008)Different polymeric materials have been prepared from the organogels formed by a polymerizable methacrylic mixture (methyl methacrylate/ethylene glycol dimethacrylate, 1:1, w/w) and the macrocyclic pseudopeptide 1. The use ... -
Use of granite sludge wastes for the production of coloured cement-based mortars
Elsevier (2010)The value of granite sludge wastes (GS) in cement-based mortar formulations was examined by assessing their potential as structural components and pigments. Full characterization of GS was accomplished by X-ray fluorescence ... -
Use of micellar liquid chromatography for rapid monitoring of fungicides post harvest applied to citrus wastewater
Elsevier (2016)A method based on micellar liquid chromatography has been developed to simultaneously monitor four pesticides largely post-harvest applied to citrus: thiabendazole, pyrimethanil, o-phenylphenol and imazalil. Water samples ... -
Vibrational Circular Dichroism Shows Reversible Helical Handedness Switching in Peptidomimetic l-Valine Fibrils
American Chemical Society (2012)We elucidate the supramolecular organization in the form of microsize fibrils of gels formed by a l-Valine peptidomimetic compound. Analysis was based on circular dichroism spectroscopies, vibrational (VCD) and electronic ... -
Vitrification and sinter-crystallization of fly ash with glass cullet
MedCrave (2019)The synthesis of a new glass-ceramic obtained by sinter-crystallization has been investigated by using soda-lime-silicate glass waste and fly ashes from a coal power thermal station located in Andorra (Teruel, Spain). ... -
Voltage-Dependent Bulk Resistivity of SrTiO3:Mg Ceramics
John Wiley & Sons (2014)Single phase ceramics of composition Sr(Ti1–xMgx)O3–x: 0 ≤ x ≤ 0.01 were prepared by sol–gel synthesis and characterized by X-ray diffraction, scanning electron microscopy, impedance spectroscopy, and current–voltage ... -
Voltage-Dependent Low-Field Bulk Resistivity in BaTiO3:Zn Ceramics
American Ceramic Society (2010-02)Ceramics of composition Ba(Ti1−xZnx)O3−x: 0.00003≤x≤0.01 exhibit modest semiconductivity, whose value is increased by up to two orders of magnitude under the action of a small dc bias voltage. The effect, which is not ... -
Wastewater treatment via H2O2 activation and 4-nitrophenol oxidation with iron-doped nickel-azolate frameworks
Elsevier B.V. (2024-08-01)An advanced oxidation heterogeneous process completely degrades 4-nitrophenol in weak acid ambient aqueous conditions using post-synthetically iron-doped nickel azolate frameworks. The framework crystallinity, porosity and ... -
Water Oxidation at Hematite Photoelectrodes with an Iridium-Based Catalyst
American Chemical Society (2013)The iridium complex [Cp*Ir(H2O)3](SO 4) was used as an organometallic source for the electrodeposition of iridium oxide onto Fe2O3. The new iridium-containing electrode allowed us to study the coupling between the ... -
Water-soluble IrIII n-heterocyclic carbene based catalysts for the reduction of CO2 to formate by transfer hydrogenation and the deuteration of aryl amines in water
WILEY-VCH Verlag (2011-03-01)Two new water-soluble [IrI2(AcO)(bis-NHC)] complexes (NHC=N-heterocyclic carbene) incorporating a sulfonate functionality have been synthesized. The two complexes have been tested in the reduction of CO2 with H2 and iPrOH, ... -
Y-Shaped Tris-N-Heterocyclic-Carbene Ligand for the Preparation of Multifunctional Catalysts of Iridium, Rhodium, and Palladium
American Chemical Society (2012)A series of homo- and hetero-dimetallic complexes of Ir, Rh, and Pd have been obtained using our previously reported Y-shaped tris-NHC ligand. The new complexes can be obtained through the isolation of the corresponding ... -
Zinc(II) coordination polymers with pseudopeptidic ligands
Royal Society of Chemistry (2011-10-11)Two new phenyl-bridged pseudopeptidic ligands have been prepared and structurally characterised. The nature of the ligands’ substituents play an important role in the nature of the solid state structure yielding either ...