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Browsing by Subject "Oxidation"

Now showing items 21-40 of 76

Effect of the environment on wear ranking and corrosion of biomedical CoCrMo alloys

Igual Muñoz, Anna Neus; Mischler, Stefano (SPRINGER, 2011)

[EN] The corrosion behaviour and the wear ranking of biomedical high carbon (HC) and low carbon (LC) CoCrMo alloys sliding against an alumina ball in four different simulated body fluids [NaCl and phosphate buffered solutions ...
Effects of low pressure exhaust gas recirculation on regulated and unregulated gaseous emissions during NEDC in a light-duty diesel engine

Bermúdez, Vicente; Luján, José M.; Plá Moreno, Benjamín; Linares Rodríguez, Waldemar Gregorio (Elsevier, 2011-09)

Regulated and unregulated gaseous emissions with high pressure and low pressure EGR (exhaust gas recirculation) system were tested in a 4-cylinder, light-duty diesel EURO IV engine typically used in European vehicles. Four ...
Electrochemical and In Situ FTIR Study of o-Cresol on Platinum Electrode in Acid Medium

Taleb, Z.; Montilla, F.; Quijada Tomás, Cesar; Morallón, E.; Taleb, S. (Springer Verlag (Germany), 2014-04)

The electrochemical behaviour of o-cresol in acidic medium on platinum electrode has been studied by cyclic voltammetry and in situ Fourier transform infrared spectroscopy. The o-cresol suffers hydrolysis during oxidation ...
Electrochemical treatment of a synthetic wastewater containing a sulphonated azo dye. Determination of naphthalenesulphonic compunds produced as main by-products

Del Río García, Ana Isabel; Fernández Sáez, Javier; Molina Puerto, Javier; Bonastre Cano, José Antonio; Cases Iborra, Francisco Javier (Elsevier, 2011-06-15)

The electrochemical treatment of wastewaters from textile industry is a promising technique for substances which are resistant to biodegradation. This paper deals with the electrochemical decolourisation/degradation of ...
Electrochemical Treatment of C.I. Reactive Black 5 Solutions on Stabilized Doped Ti/SnO2 Electrodes

Del Río García, Ana Isabel; Benimeli Cámara, María José; Molina Puerto, Javier; Bonastre Cano, José Antonio; Cases Iborra, Francisco Javier (Electrochemical Science Group, 2012-12-01)

The electrochemical treatment of wastewaters from the textile industry is a promising technique for substances which are resistant to biodegradation. This paper deals with the electrochemical decolourisation and degradation ...
Electrochemical treatment of solutions containing a recalcitrant dye: A way of using dimensionally adaptable catalytic fabrics

Del Río García, Ana Isabel; García, Carolina; Fernández Sáez, Javier; Molina Puerto, Javier; Bonastre Cano, José Antonio; Cases Iborra, Francisco Javier (American Chemical Society, 2015-07-01)

The objective of this work is to study the decolorization/degradation of reactive dye Remazol Black (RMZB) in sulfuric media. The electrochemical behavior was evaluated by cyclic voltammetry (CV) using platinum (Pt) and ...
Estabilidad de bases aromáticas alimentarias microencapsuladas: Comparación de diferentes combinaciones de soportes basados en hidratos de carbono, proteinas y gomas

Navarro Selma, Ignacio (Universitat Politècnica de València, 2015-11-13)

[ES] Uno de los factores clave en la calidad de los productos elaborados por las empresas del sector de la alimentación es la preservación de los aromas propios del alimento. En este trabajo se han estudiado los efectos ...
Estudio del efecto del fuego en los cambios microestructurales de las aleaciones del cobre

López Sánchez, Inmaculada (Universitat Politècnica de València, 2012-01-17)

Estudio de las transformaciones que los conductores de cobre sufren en distintas condiciones de trabajo, para lo cual hemos sometido a distintos conductores de 2.5, 4, 6 y 13 mm2 a temperaturas de 950, 975, 1000, 1050 y ...
Ethylene Production by ODHE in Catalytic Modified Ba0.5Sr0.5Co0.8Fe0.2O3 Membrane Reactors

Lobera González, Maria Pilar; Escolástico Rozalén, Sonia; García Fayos, Julio; Serra Alfaro, José Manuel (Wiley-VCH Verlag, 2012)

[EN] Process intensification by the integration of membranes and high-temperature reactors offers several advantages with regard to conventional process schemes, that is, energy saving, safe operation, reduced plant/unit ...
Evaluación de la oxidación superficial de recubrimientos de Ti6Al4V obtenidos por recubrimiento por láser

Amigó Borrás, Vicente; Candel Bou, Juan José; Amado, J.M.; Yañez, A. (CSIC, 2010)

[ES] Se ha estudiado la in¿uencia de los parámetros de procesado sobre la oxidación super¿cial y propiedades mecánicas de diferentes recubrimientos de Ti6Al4V. La gran reactividad química del polvo de titanio junto a la ...
Evaluación y desarrollo de aleaciones de alta entropía Ti-Nb-Zr-Ta obtenidas mediante procesos pulvimetalúrgicos, para aplicaciones aeronáuticas y biomédicas

Saavedra Sayago, Wilder Rafael (Universitat Politècnica de València, 2021-07-16)

[ES] En los últimos años sean desarrollado algunas aleaciones de alta entropía con interesantes propiedades de diferentes sectores. Sin embargo, su desarrollo no resulta sencillo al resultar una mezcla prácticamente ...
Evaluation of two ion-exchange membranes for the transport of tin in the presence of hydrochloric acid

García Gabaldón, Montserrat; Pérez-Herranz, Valentín; Ortega Navarro, Emma María (Elsevier, 2011-01-19)

The transport properties of two ion-exchange membranes in the presence of tin, as Sn(II) and Sn(IV), were investigated by chronopotentiometry and current-voltage curves. Since tin forms positively or negatively charged ...
Exceptional oxidation activity with size-controlled supported gold clusters of low atomicity

Corma Canós, Avelino; Concepción Heydorn, Patricia; Boronat Zaragoza, Mercedes; Sabater Picot, Mª José; Navas Escrig, Javier; Yacaman, Miguel José; Larios, Eduardo; Posadas, Álvaro; López Quintela, M. Arturo; Buceta, David; Mendoza, Ernest; Guilera, Gemma; Mayoral, Álvaro (Nature Publishing Group, 2013-09)

[EN] The catalytic activity of gold depends on particle size, with the reactivity increasing as the particle diameter decreases. However, investigations into behaviour in the subnanometre regime (where gold exists as small ...
Gold Catalysis Opens Up a New Route for the Synthesis of Benzimidazoylquinoxaline Derivatives from Biomass Derived Products (Glycerol)

Climent Olmedo, María José; Corma Canós, Avelino; Iborra Chornet, Sara; Martínez Silvestre, Sergio (Wiley-VCH Verlag, 2013-12)

Process intensification by using well-defined solid catalysts able to perform one-pot multistep reactions is one of the open fronts in heterogeneous catalysis. This is even more relevant if new, more efficient synthesis ...
High temperature oxidation behavior of laser cladding MCrAlY coatings on austenitic stainless steel

Pereira, Juan Carlos; Zambrano, J.C.; Tobar, M.J.; Yañez, A.; Amigó Borrás, Vicente (Elsevier, 2015-05-25)

The development of coatings has become technologically significant in many industries. A common approach in high temperature applications is the production of new thermal barrier coatings (TBCs). Laser cladding (LC) can ...
Hydroxyl radical as an unlikely key intermediate in the photodegradation of emerging pollutants

Rodríguez Muñiz, Gemma María; Gomis Vicens, Juan; Arques Sanz, Antonio; Amat Payá, Ana María; Marín García, Mª Luisa; Miranda Alonso, Miguel Ángel (Wiley-Blackwell, 2014-11)

In this work, a kinetic model, in combination with time-resolved experiments, is applied to assess the involvement of OH in the photodegradation of emerging pollutants (EPs) by means of advanced oxidation processes. In ...
Influence of Phase Composition of Bulk Tungsten Vanadium Oxides on the Aerobic Transformation of Methanol and Glycerol

Delgado-Muñoz, Daniel; Chieregato, Alessandro; Soriano Rodríguez, Mª Dolores; Rodríguez-Aguado, E.; Ruiz-Rodríguez, Lidia; Rodriguez-Castellon, E.; López Nieto, José Manuel (John Wiley & Sons, 2018-03-14)

[EN] A series of W-V-O catalysts with different m-WO3 and h-WO3 phase contents were hydrothermally synthesized by employing different tungsten, vanadium, and ammonium precursors and characterized by powder XRD, N-2 adsorption, ...
Influence of process parameters and initial microstructure on the oxidation resistance of Ti48Al2Cr2Nb coating obtained by laser metal deposition

Zambrano Carrullo, Jenny Cecilia; Pereira Falcón, Juan Carlos; Amigó, Vicente (Elsevier, 2019)

[EN] Ti6Al4V have been the most important and versatile titanium alloys currently used, due to their excellent combination of low density and good mechanical properties, despite their application temperature being limited ...
Intracrystalline diffusion in metal organic framework during heterogeneous catalisys: Influence of particle size on the activity of MIL-100 (Fe) for oxidation reaction

Dhakshinamoorthy, Amarajothi; Alvaro Rodríguez, Maria Mercedes; Hwang, Young Kyu; Seo, You-Kyong; Corma Canós, Avelino; García Gómez, Hermenegildo (ROYAL SOC CHEMISTRY, 2011)

[EN] Three MIL-100 (Fe) samples differing in average crystal size (from 60-70 to >400 nm) have been synthesized by microwave heating using three HF/Fe 3+ ratios. Oxidation of diphenylmethane with tert-butylhydroperoxide ...
La Cruz de Cerrajería (Sevilla): historia, proceso degradativo, materiales y metodología de restauración

Alejandre Sánchez, Francisco J.; Flores-Alés, Vicente; Soler Núñez, Pilar; León Calzado, José (Universitat Politècnica de València, 2018-12-19)

[EN] The Cruz de Cerrajería is a wrought-iron cross forged in 1692 by the master locksmith Sebastián Conde. Its exposure to environmental elements, its structural characteristics and the inappropriate application of ...