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Browsing by Subject "Iron"

Now showing items 1-20 of 25

[Fe(TPT)2/3{MI(CN)2}2]·nSolv (MI=Ag, Au): new bimetallic porous coordination polymers with spin-crossover properties

Arcis-Castillo, Zulema; Muñoz Roca, María del Carmen; Molnár, Gábor; Bousseksou, Azzedine; Real, José Antonio (Wiley-VCH Verlag, 2013-05-17)

Two new heterobimetallic porous coordination polymers with the formula [Fe(TPT)2/3{MI(CN)2}2]¿nSolv (TPT=[(2,4,6-tris(4-pyridyl)-1,3,5-triazine]; MI=Ag (nSolv=0, 1¿MeOH, 2¿CH2Cl2), Au (nSolv=0, 2¿CH2Cl2)) have been synthesized ...
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. ...
Caracterización de la transición de embrión globular a corazón en embriones androgénicos de berenjena

García Fortea, Edgar (2015-09-04)

[ES] La puesta a punto de métodos eficientes de obtención de individuos doble haploides (DHs) es uno de los objetivos principales de muchas empresas empresas de mejora genética, pues permiten obtener líneas puras de forma ...
Combining ZVI reduction with photo-Fenton process for the removal of persistent pollutants

Santos-Juanes Jordá, Lucas; Garcia Einschlag, F. S.; Amat Payá, Ana María; Arqués Sanz, Antonio (Elsevier, 2017)

[EN] An iron-based photochemical process able to act via reductive and oxidative stages by tuning experimental conditions has been explored. In a first step, zero-valent iron (ZVI), added as steel wool, was used to reduce ...
Electrochemical recovery of zinc from the spent pickling baths coming from the hot dip galvanizing industry. Potentiostatic operation

Carrillo Abad, Jorge; García Gabaldón, Montserrat; Ortega Navarro, Emma María; Pérez-Herranz, Valentín (Elsevier, 2011-09)

An electrochemical reactor was developed to recover zinc from the spent pickling solutions coming from the hot dip galvanizing industry. These solutions mainly contain ZnCl2 and FeCl2 in aqueous HCl media. The effect of ...
Electrochemical recovery of zinc from the spent pickling solutions coming from hot dip galvanizing industries. Galvanostatic operation

Carrillo Abad, Jordi; García Gabaldón, Montserrat; Pérez Herranz, Valentín (Electrochemical Science Group, 2012-06)

[EN] The performance of an electrochemical reactor for zinc recovery from the spent pickling solutions coming from the hot dip galvanizing industry in galvanostatic operation is studied in this paper. These solutions mainly ...
Fe-Containing Zeolites for NH3-SCR of NOx: Effect of Structure, Synthesis Procedure, and Chemical Composition on Catalytic Performance and Stability

Martín-García, Nuria; Vennestrom; Peter Nicolai Ravnborg; Thogersen, Joakim Reimer; Moliner Marin, Manuel; Corma Canós, Avelino (John Wiley & Sons, 2017)

[EN] The direct preparation of different iron-containing Beta and CHA zeolites has been attempted under diverse synthesis conditions, including in alkaline and fluoride media, to evaluate the influence of their physicochemical ...
Generation of defects on oxide supports by doping with metals and their role in oxygen activation

Boronat Zaragoza, Mercedes; Corma Canós, Avelino (Elsevier, 2011-07-01)

Doping of anatase TiO2 with Au and Fe has been investigated using DFT methods. The geometry distortion, charge and spin density distribution in the lattice and oxygen vacancy formation energies calculated for the Au- and ...
Iron Nanoparticles Embedded in Graphitic Carbon Matrix as Heterogeneous Catalysts for the Oxidative C-N Coupling of Aromatic N-H Compounds and Amides

He, Jinbao; Dhakshinamoorthy, Amarajothi; Primo Arnau, Ana María; García Gómez, Hermenegildo (John Wiley & Sons, 2017)

[EN] Fe or Co nanoparticles (NPs) and two nanoparticulate Fe-Co alloys having different Fe/Co atomic ratio with average particle size ranging from 10.9 to 26.5 nm embedded in turbostratic graphitic carbon matrix have been ...
Iron(III) Triflimide as a catalytic substitute for gold(I) in hydroaddition reactions to unsaturated carbon-carbon bonds

Cabrero Antonino, Jose Ramón; Leyva Perez, Antonio; Corma Canós, Avelino (John Wiley & Sons, 2013)

[EN] In this work it is shown that iron(III) and gold(I) triflimide efficiently catalyze the hydroaddition of a wide array of nucleophiles including water, alcohols, thiols, amines, alkynes, and alkenes to multiple CC ...
Iron-containing SBA-15 as catalyst for partial oxidation of hydrogen sulfide

Reyes-Carmona, Alvaro; Soriano Rodríguez, Mª Dolores; López Nieto, José Manuel; Jones, Deborah J.; Jimenez-Jimenez, Jose; Jimenez-Lopez, Antonio; Rodriguez-Castellon, Enrique (Elsevier, 2013-07-01)

[EN] A family of Fe-containing SBA-15 silica synthesized by a simple one-pot hydrothermal method was synthesized and tested in the hydrogen sulfide partial oxidation for sulfur production at 200 degrees C and atmospheric ...
La corrosión de los objetos de hierro durante el almacenaje: Estudio previo de la efectividad de tres resinas acrílicas como protección.

Ribas Liern, Ester (2013-06-26)

[ES] El presente trabajo pretende ser una introducción al complejo mundo de la conservación de los objetos de hierro arqueológico, prestando especial interés a las estrategias de conservación que puedan amoldarse a las ...
Nanoporosity, Inclusion Chemistry, and Spin Crossover in Orthogonally Interlocked Two-Dimensional Metal Organic Frameworks

Romero Morcillo, Tania; De la Pinta, Noelia; Callejo, Lorena M.; Piñeiro López, Lucía; Muñoz Roca, María del Carmen; Madariaga, Gotzon; Ferrer, Sacramento; Breczewski, Tomasz; Cortés, Roberto; Real, José A. (Wiley, 2015-08-17)

[Fe(tvp)(2)(NCS)(2)] (1) (tvp=trans-(4,4-vinylenedipyridine)) consists of two independent perpendicular stacks of mutually interpenetrated two-dimensional grids. This uncommon supramolecular conformation defines square-sectional ...
Particular Transport Properties of NiFe2O4 Thin Films at High Temperatures

Solis Díaz, Cecilia; Somacescu, Simona; Palafox, E.; Balaguer Ramírez, María; Serra Alfaro, José Manuel (American Chemical Society, 2014-10-23)

NiFe2O4 (NFO) thin films were deposited on quartz substrates by rf magnetron sputtering, and the influence of the deposition conditions on their physic-chemical properties was studied. The films structure and the high ...
pH effect on zinc recovery from the spent pickling baths of hot dip galvanizing industries

Carrillo Abad, Jorge; García Gabaldón, Montserrat; Pérez-Herranz, Valentín (Elsevier, 2017)

[EN] In this work, the pH effect on the zinc electrowinning present in the spent pickling baths (SPBs) is analysed with the aim of decreasing the energetic cost of the process. Specifically, the effect of increasing the ...
Quantitative colorimetric-imaging analysis of nickel in iron meteorites

Lahuerta Zamora, L.; Alemán López, P.; Antón Fos, G.M.; Martín Algarra, R.; Mellado Romero, Ana María; Martínez Calatayud, J. (Elsevier, 2011-02)

A quantitative analytical imaging approach for determining the nickel content of metallic meteorites is proposed. The approach uses a digital image of a series of standard solutions of the nickel-dimethylglyoxime coloured ...
Recovery of zinc from spent pickling solutions using an electrochemical reactor in presence and absence of an anion-exchange membrane: Galvanostatic operation

Carrillo Abad, Jorge; García Gabaldón, Montserrat; Ortega Navarro, Emma María; Pérez-Herranz, Valentín (Elsevier, 2012-09-19)

The performance of a one- and two-compartment electrochemical reactor under galvanostatic control for zinc recovery present in the spent pickling solutions is studied in this paper. These solutions, which mainly contain ...
Regioselective Hydration of Alkynes by Iron(III) Lewis/Brønsted Catalysis

Cabrero Antonino, Jose Ramón; Leyva Perez, Antonio; Corma Canós, Avelino (Wiley-VCH Verlag, 2012-08-27)

The triflimide iron(III) salt [Fe(NTf2)3] promotes the direct hydration of terminal and internal alkynes with very good Markovnikov regioselectivities and high yields. The enhanced carbophilic Lewis acidity of the FeIII ...
Study of corrosion in steel sculptures by means of solid state voltammetry at paraffin-impregnated graphite electrodes

Domenech Carbo, Antonio; Roig Salom, José Luis; Domenech Carbo, Mª Teresa (Instituto Universitario de Restauración del Patrimonio de la UPV, 2006)

Solid-state voltammetry is used for studying the composition of corrosion products in a series of sculptures from the Contemporary Sculpture Collection of the Universidad Politècnica de Valencia (Spain). Upon attachment ...