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Listar por autor "López Nieto, José Manuel"

Mostrando ítems 1-20 de 109

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A study of the oxidehydration of 1,2-propanediol to propanoic acid with bifunctional catalysts

Bandinelli, Claudia; Lambiase, Barbara; Tabanelli, Tommaso; De Maron, Jacopo; Dimitratos, Nikolaos; Basile, Francesco; Concepción Heydorn, Patricia; López Nieto, José Manuel; Cavani, Fabrizio (Elsevier, 2019-07-25)

[EN] The gas-phase oxidehydration (ODH) of 1,2-propanediol to propionic acid has been studied as an intermediate step in the multi-step transformation of bio-sourced glycerol into methylmethacrylate. The reaction involves ...
Al2O3-Supported W-V-O bronzes catalysts for oxidative dehydrogenation of ethane

Benomar, S.; Chieregato, A.; Masso, A.; Soriano Rodríguez, Mª Dolores; Vidal Moya, José Alejandro; Blasco Lanzuela, Teresa; Issaadi, R.; López Nieto, José Manuel (The Royal Society of Chemistry, 2020-12-07)

[EN] Supported vanadium-containing hexagonal tungsten bronzes (HTBs) were prepared for the first time using a combination of a new soft synthetic procedure and fine-tuned heat treatments. The characterization of heat-treated ...
Alkali-promoted V2O5 catalysts for the partial oxidation of H2S to sulphur

Soriano Rodríguez, Mª Dolores; López Nieto, José Manuel; Ivars Barceló, Francisco; Concepción Heydorn, Patricia; Rodriguez-Castellon, E. (Elsevier, 2012-09-30)

[EN] Present paper describes the influence of the incorporation of alkali metal cations (AM = Li, Na, K, Cs; and an AM/V ratio of 0.04) and Na-content (Na/V ratio of 0.02-0.30) in alkali metal promoted V2O5 catalyst on ...
Bronces de óxido de vanadio como catalizadores para la activación selectiva de enlaces C-H y S-H

Ruiz Rodríguez, Lidia (Universitat Politècnica de València, 2020-09-02)

[ES] En los últimos años, debido al aumento de la contaminación global y su impacto sobre el medio ambiente, se ha puesto especial énfasis en el desarrollo de nuevos procesos catalíticos respetuosos con el medioambiente. ...
Catalytic abatement of trichloroethylene over Mo and/or W-based bronzes

Blanch Raga, Neus; Soriano Rodríguez, Mª Dolores; Palomares Gimeno, Antonio Eduardo; Concepción Heydorn, Patricia; Martínez Triguero, Luis Joaquín; López Nieto, José Manuel (Elsevier, 2013-02)

[EN] In this paper we present the results of the synthesis, characterization and catalytic behaviour of Mo(W)¿Nb¿V¿O mixed metal oxides bronzes for the catalytic oxidation of trichloroethylene. The catalysts were prepared ...
Catalytic behavior of NaV6O15 bronze for partial oxidation of hydrogen sulfide

Soriano Rodríguez, Mª Dolores; Rodriguez-Castellon, E.; Garcia-Gonzalez, E.; López Nieto, José Manuel (Elsevier, 2014-12)

[EN] Na-containing V2O5 materials have been prepared hydrothermally from gels with Na/V ratios of 0.02-0.26, and calcined at 500 degrees C. The calcined samples have been characterized and tested as catalysts in the partial ...
Catalytic valorization of natural gas and biomass-derived feedstocks by metal oxides

Delgado Muñoz, Daniel (Universitat Politècnica de València, 2019-06-11)

[ES] La presente tesis doctoral se sitúa en el marco de la actual transición energética, que plantea la sustitución progresiva de materias primas de origen fósil por fuentes renovables, tanto para la obtención de productos ...
Catalytic VOCs elimination over copper and cerium oxide modified mesoporous SBA-15 silica

Tsoncheva, Tanya; Issa, Gloria; Blasco Lanzuela, Teresa; Dimitrov, M.; Popova, Margarita; Hernández Morejudo, Selene; Kovacheva, Daniela; Atanasova, Genoveva; López Nieto, José Manuel (Elsevier, 2013)

[EN] Copper and cerium oxide bi-component materials with different Cu/Ce ratio were prepared using ordered SBA-15 silica as a support and compared with their bulk analogs. The samples were characterized by nitrogen ...
Chemical, Structural, and Morphological Changes of a MoVTeNb Catalyst during Oxidative Dehydrogenation of Ethane

Valente, Jaime S.; Armendariz-Herrera, Héctor; Quintana-Solorzano, Roberto; Del Angel, Paz; Nava, Noel; Massó Ramírez, Amada; López Nieto, José Manuel (American Chemical Society, 2014)

MoVTeNb mixed oxide, a highly active and selective catalyst for the oxidative dehydrogenation of ethane to produce ethylene, exhibits the so-called M1 and M2 crystalline phases. The thermal stability of the MoVTeNb ...
DESARROLLO DE PELÍCULAS BASADAS EN ÁCIDO POLILÁCTICO REFORZADAS CON NANOFIBRAS RENOVABLES ELECTROESTIRADAS

Busolo Pons, María Antonieta (Universitat Politècnica de València, 2011-10-21)

Se obtienen nanofibras de zeína por electroestirado, con un diámetro aprox. de 300 nm. Éstas se han incorporado a una matriz de ácido poliláctico-polietilénglicol con un procedimiento novedoso que permite mantener la ...
Discerning the Metal Doping Effect on Surface Redox and Acidic Properties in a MoVTeNbOx for Propa(e)ne Oxidation

Quintana-Solórzano, Roberto; Mejía-Centeno, Isidro; Armendáriz-Herrera, Héctor; Ramírez-Salgado, Joel; Rodríguez-Hernandez, Andrea; Guzmán-Castillo, Maria de Lourdes; López Nieto, José Manuel; Valente, Jaime S. (American Chemical Society, 2021-06-15)

[EN] Adding a small quantity of K or Bi to a MoVTeNbOx via impregnation with inorganic solutions modifies its surface acid and redox properties and its catalytic performance in propa(e)ne partial oxidation to acrylic acid ...
Electrical conductivity of a MoVTeNbO catalyst in propene oxidation measured in operando conditions

Caldararu, M.; Scurtu, M.; Hornoiu, C.; Munteanu, C.; Blasco Lanzuela, Teresa; López Nieto, José Manuel (Elsevier, 2010-10-15)

[EN] A complex ac electrical conductivity study was performed on a Te(0.33)MO(3.33) (M = Mo + V + Nb) pure phase (M2-type phase) in operando conditions, using the differential step technique (DST). The aim is to obtain new ...
Electrifying Ba0.5Sr0.5Co0.8Fe0.2O3-δ; for focalized heating in oxygen transport membranes

Laqdiem-Marin, Marwan; García-Fayos, Julio; Almar-Liante, Laura; Carrillo-Del Teso, Alfonso Juan; Represa-Bullido, Álvaro; López Nieto, José Manuel; Escolástico Rozalén, Sonia; Catalán-Martínez, David; Serra Alfaro, José Manuel (Elsevier, 2024-04)

[EN] Industry decarbonization requires the development of highly efficient and flexible technologies relying on renewable energy resources, especially biomass and solar/wind electricity. In the case of pure oxygen production, ...
Enhanced NiO Dispersion on a High Surface Area Pillared Heterostructure Covered by Niobium Leads to Optimal Behaviour in the Oxidative Dehydrogenation of Ethane

Rodríguez-Castellón, Enrique; Delgado-Muñoz, Daniel; Dejoz, Ana; Vázquez, Isabel; Agouram, Said; Cecilia, Juan A.; Solsona, Benjamín; López Nieto, José Manuel (John Wiley & Sons, 2020-07-27)

[EN] A Nb-containing siliceous porous clay heterostructure (PCH) with Nb contents from 0 to 30 wt %) was prepared from a bentonite and used as support in the preparation of supported NiO catalysts with NiO loading from 15 ...
Enhancement of ethylene production by alkali metal doping of MoVSb mixed oxide catalyst for ethane oxidative dehydrogenation

Ivars Barceló, F.; Solsona, B.; Asedegbega-Nieto, E.; López Nieto, José Manuel (Elsevier, 2023-06-25)

[EN] Hydrothermally prepared Mo-V-Sb mixed oxides doped with alkali metal cations (Li+, Na+, K+, Rb+, or Cs+) show a significantly improved catalytic behavior in the oxidative dehydrogenation of ethane (ODH) compared to ...
Estudio de la actividad catalítica de óxidos de molibdeno y vanadio soportados sobre TiO2 para la valorización de etanol

Olmos Huerta, Juan (Universitat Politècnica de València, 2021-10-27)

[ES] En los últimos años, el aumento descontrolado de emisiones de óxidos de carbono a la atmosfera, derivado en gran medida por el uso de combustibles fósiles, supone uno de los principales problemas a los que la sociedad ...
Estudios de óxidos metálicos para la transformación de metanol en presencia de oxígeno

Zamora Blanco, Segundo (Universitat Politècnica de València, 2012-05-25)

Síntesis de catalizadores de óxidos mixtos metálicos y ensayos de reacción para la transformación de metanol en presencia de oxígeno.
Evolution of the optimal catalytic systems for the oxidative dehydrogenation of ethane: The role of adsorption in the catalytic performance

De Arriba-Mateos, Agustín; Solsona, Benjamin; Dejoz, Ana M.; Concepción Heydorn, Patricia; Homs, Narcís; Ramírez de la Piscina, Pilar; López Nieto, José Manuel (Elsevier, 2022-04)

[EN] Three samples that correspond to the evolution of optimal catalytic systems for the oxidative dehydrogenation of ethane have been synthesized and compared in terms of catalytic behavior and adsorption properties: (i) ...
Fe2O3 supported on hollow micro/mesospheres silica for the catalytic partial oxidation of H2S to sulfur

Cecilia, J.A.; Soriano Rodríguez, Mª Dolores; Marques Correia, L.; Rodríguez-Castellón, E.; López Nieto, José Manuel; Silveira Vieira, R. (Elsevier, 2020-03-01)

[EN] A family of Fe-based catalysts supported hollow silica mesospheres has been synthesized and tested in the catalytic partial oxidation of H2S to elemental sulfur at 170.180 degrees C, atmospheric pressure and under 300 ...
Ferric sludge derived from the process of water purification as an efficient catalyst and/or support for the removal of volatile organic compounds

Sanchis, Rut; Dejoz, Ana; Vázquez, Isabel; Vilarrasa-García, Enrique; Jiménez-Jiménez, José; Rodríguez-Castellón, Enrique; López Nieto, José Manuel; Solsona, Benjamín (Elsevier, 2019-03)

[EN] Ferric chloride solutions are used as coagulants or flocculants in water treatment operations for human consumption. This treatment produces large amounts of clay-type solids formed mainly of montmorillonite with ...