Search Results - "Rodella, C. B."
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X-ray powder diffraction at the XRD1 beamline at LNLS
Published in Journal of synchrotron radiation (01-11-2016)“…Various upgrades have been completed at the XRD1 beamline at the Brazilian synchrotron light source (LNLS). The upgrades are comprehensive, with changes to…”
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Probing the stability of Pt nanoparticles encapsulated in sol―gel Al2O3 using in situ and ex situ characterization techniques
Published in Applied catalysis. A, General (05-09-2014)Get full text
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Surface Characterisation of V2O5/TiO2 Catalytic System
Published in Physica status solidi. A, Applied research (01-09-2001)“…Samples of the V2O5/TiO2 system were prepared by the sol–gel method and calcined at different temperatures. Surface species of vanadium, their dispersion, as…”
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Structural characterization of the V2O5/TiO2 system obtained by the sol-gel method
Published in The Journal of physics and chemistry of solids (01-05-2003)“…The influence of the vanadium load and calcination temperature on the structural characteristics of the V2O5/TiO2 system was studied by X-ray diffraction and…”
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Combining in situ electrochemistry, operando FTIR and post-mortem analyses to understand Co-Mn-Al spinels on mitigating shuttle effect in lithium-sulfur battery
Published in Nano energy (01-11-2023)“…The spinel oxide Co2Mn0.5Al0.5O4 (CMA) was investigated as an additive onto the cathode of lithium-sulfur batteries. We demonstrate the polysulfide adsorption…”
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Probing the stability of Pt nanoparticles encapsulated in sol-gel Al sub(2)O sub(3) using in situ and ex situ characterization techniques
Published in Applied catalysis. A, General (05-09-2014)“…In this work, we address the stability of platinum nanoparticles (Pt-NPs) encapsulated in alumina. Colloidal Pt-NPs capped with poly(N-vinyl-2-pyrrolidone)…”
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Chemical and structural characterization of V2O5/TiO2 catalysts
Published in Journal of vacuum science & technology. A, Vacuum, surfaces, and films (01-07-2001)“…A series of V2O5/TiO2 samples was synthesized by sol–gel and impregnation methods with different contents of vanadia. These samples were characterized by x-ray…”
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Electric and magnetic properties of polymer electrolyte/carbon black composites
Published in Solid state ionics (01-12-1998)“…Measurements of 1H Nuclear Magnetic Resonance (NMR) relaxation times, Electron Paramagnetic Resonance (EPR) and AC Impedance Spectroscopy (IS) are reported for…”
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Characterization and catalytic performance of rhenium oxide-based catalysts supported on borated silica-alumina
Published in Applied catalysis. A, General (10-06-2004)“…A series of alumino-silicates with an alumina content varying from 15 to 75 wt.% were prepared by the sol–gel method. These oxides, modified or not with boria,…”
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Chemical and structural characterization of V sub(2)O sub(5)/TiO sub(2) catalysts
Published in Journal of vacuum science & technology. A, Vacuum, surfaces, and films (01-01-2001)“…Vanadia supported on titania was synthesised by sol-gel and impregnation methods with different contents of vanadia. The samples were characterized by x-ray…”
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Metathesis of methyl oleate over rhenium oxide-based catalysts supported on borated silica–alumina: catalyst recycling
Published in Applied catalysis. A, General (28-10-2004)“…The recyclability of the 2 wt.% Re 2O 7/7.5 wt.% B 2O 3/SiO 2–Al 2O 3 catalytic system upon activation with SnBu 4 was evaluated in the metathesis of methyl…”
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Electric and magnetic properties of polymer electrolyte/carbon black composites
Published in Solid state ionics (16-11-1997)“…Measurements of exp 1 H Nuclear Magnetic Resonance (NMR) relaxation times. Electron Paramagnetic Resonance (EPR) and AC Impedance Spectroscopy (IS) are…”
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Chemical and structural characterization of V 2 O 5 /TiO 2 catalysts
Published in Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films (01-07-2001)“…A series of V 2 O 5 / TiO 2 samples was synthesized by sol–gel and impregnation methods with different contents of vanadia. These samples were characterized by…”
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Conference Proceeding -
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Germanium and silicon compounds as promoters for Re2O7/SiO2-Al2O3 metathesis catalysts
Published in Journal of molecular catalysis. A, Chemical (02-12-2002)Get full text
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15
V2O5/TiO2 Catalytic Xerogels Raman and EPR Studies
Published in Journal of sol-gel science and technology (01-08-2002)“…Raman spectroscopy and Electron Paramagnetic Resonance (EPR) studies were performed on a series of V2O5/TiO2 catalysts prepared by a modified sol-gel method in…”
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An in situ NMR study of the reactions of cyclohexanone promoted by solid acid catalysts: acetalization versus deuteration
Published in Catalysis communications (01-05-2003)“…The effect of different catalysts (NaY, Cr-VPI-5, acidic kaolinite clay, clayfen, and p-toluenesulfonic acid) on the reaction between cyclohexanone and…”
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V2O5/TiO2 catalyst xerogels: Method of preparation and characterization
Published in Journal of sol-gel science and technology (01-08-2002)“…This work describes a modified sol-gel method for the preparation of V2O5/TiO2 catalysts. The samples have been characterized by N2 adsorption at 77 K, X-ray…”
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Electric and magnetic properties of polymer electrolyte/carbon black composites
Published in Solid state ionics (1998)Get full text
Conference Proceeding