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Listar por palabra clave "Chromium"

Mostrando ítems 1-11 de 11

A new phenanthrene-based bis-oxime chemosensor for Fe(III) and Cr(III) discrimination

Bravo, Virginia; Gil Grau, Salvador; Costero Nieto, Ana María; Kneeteman, Maria N.; Llaosa, Úrsula; Mancini, Pedro Maximo Emilio; Ochando Gómez, Luis Enrique; Parra Álvarez, Margarita (Elsevier, 2012-06-17)

[EN] The synthesis of two new 2,7-disubstituted phenanthrene-based bis oximes is described. The ability of these two compound for complexing heavy metal cations have been studied and complexation constants and complex ...
A new selective fluorogenic probe for trivalent cations

Barba Bon, Andrea; Costero, Ana; Gil Grau, Salvador; Parra Álvarez, Margarita; Soto Camino, Juan; Martínez Mañez, Ramón; Sancenón Galarza, Félix (Royal Society of Chemistry, 2012)

[EN] A new selective chromo-fluorogenic probe for Fe 3+, Cr 3+ and Al 3+ is reported. Detection limits are in the ¿M range and the fluorogenic sensing ability could be observed by the naked eye when illuminated with UV-light. ...
Crack Free Tungsten Carbide Reinforced Ni(Cr) Layers obtained by Laser Cladding

Amado Paz, José Manuel; Tobar Vidal, María José; Yañez Casal, Armando Jose; Amigó Borrás, Vicente; Candel Bou, Juan José (Elsevier, 2011-04-15)

[EN] The development of hardfacing coatings has become technologically significant in many industries A common approach is the production of metal matrix composites (MMC) layers. In this work NiCr-WC MMC hardfacing layers ...
Determination of transport properties of Ni(II) through a Nafion cation-exchange membrane in chromic acid solutions

Martí Calatayud, Manuel César; García Gabaldón, Montserrat; Pérez-Herranz, Valentín; Ortega Navarro, Emma María (Elsevier, 2011-07-07)

The transport properties of a cation-exchange membrane in the presence of nickel sulphate solutions were investigated by means of chronopotentiometry. The interest of this study relies on the application to the treatment ...
Effects of chromium yeast supplementation on growth performances and meat quality in rabbits

Lambertini, L.; Vignola, G.; Beone, G.M.; Zaghini, G.; Formigoni, A. (World Rabbit Science. ICTA. UPV, 2004)

[EN] The aim of the trial was to estimate the effect of dietary Cr-yeast addition to growing rabbit diet on growth performance, meat composition, muscle fatty acid profile and Cr content of meat and edible organs. Ninety-six ...
Electrodeposited Cr-Doped alpha-Fe2O3 thin films active for photoelectrochemical water splitting

Bouhjar, Feriel; Derbali, Lotfi; Marí, B.; Bessais, Brahim (Elsevier, 2020-04-14)

[EN] Polycrystalline hematite (alpha-Fe2O3) Chromium (Cr)-doped thin films were electrodeposited on fluorine-doped tin oxide-coated glass substrates. The electrodeposition bath comprised an aqueous solution containing FeCl3 ...
Estudio de los artefactos forenses generados por la aplicación WhatsApp Web en el entorno Chromium

Moreno Martínez, Álvaro (Universitat Politècnica de València, 2023-07-26)

[ES] El estudio sobre la adquisición de evidencias y su significado en las aplicaciones de mensajería instantánea se ha enfocado, principalmente, en el ámbito de los dispositivos móviles. Sin embargo, el uso de estas ...
Hydrothermal synthesis of nanostructured Cr-doped hematite with enhanced photoelectrochemical activity

Bouhjar, Feriel; Mollar García, Miguel Alfonso; Chourou, M.L.; Marí, B.; Bessais, Brahim (Elsevier, 2018)

[EN] Using the easily applicable hydrothermal method Cr-doped hematite thin films have been deposited polycrystalline on conductive glass substrates. The hydrothermal bath consisted of an aqueous solution containing a ...
Influence of Terephthalic Acid Substituents on the Catalytic Activity of MIL-101(Cr) in Three Lewis Acid Catalyzed Reactions

Santiago-Portillo, Andrea; Navalón Oltra, Sergio; Concepción Heydorn, Patricia; Alvaro Rodríguez, Maria Mercedes; García Gómez, Hermenegildo (John Wiley & Sons, 2017)

[EN] Six isostructural MIL¿101(Cr)¿X (X: H, NO2, SO3H, Cl, CH3, and NH2) materials have been prepared directly by the reaction of CrIII salts and the corresponding terephthalic acid or by postsynthetic treatments of preformed ...
Reducing sulfates concentration in the tannery effluent by applying pollution prevention techniques and nanofiltration

Galiana Aleixandre, María Vicenta; Mendoza Roca, José Antonio; Bes-Piá, M.A. (ELSEVIER SCI LTD, 2011)

[EN] The use of large quantities of sulfuric acid and other sulfur-containing chemicals causes high sulfate concentrations in the wastewater of a tannery. The aim of this work was reducing the sulfate concentration in the ...
The effectiveness of the stabilization/solidification process on the leachability and toxicity of the tannery sludge chromium

Montañés Sanjuan, María Teresa; Sánchez Tovar, Rita; Roux, Marie Sophie Beatrice (Elsevier, 2014-10-01)

[EN] A stabilization/solidification (S/S) process by using cement was applied to tannery sludge in order to find a safer way of landfilling this waste. The effects of three parameters on the process effectiveness ...