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Browsing by Author "Blasco Lanzuela, Teresa"

Now showing items 1-20 of 33

5th International FEZA Conference : abstracts

Blasco Lanzuela, Teresa; Sastre de Andres, Enrique (Editorial Universitat Politècnica de València, 2011-07-12)
A Multi-Nuclear MAS-NMR Study on the Structural Properties of Silicalite-1 Zeolite Synthesized Using N- and P-Based Organic Structure Directing Agents

Martinez-Ortigosa, Joaquin; Simancas, Jorge; Vidal Moya, José Alejandro; Rey Garcia, Fernando; Valencia Valencia, Susana; Blasco Lanzuela, Teresa (MDPI AG, 2021-08)

[EN] The nature of organic structure directing agents (OSDAs) is of paramount importance in the final properties of zeolites, particularly the framework and porosity. Recently, the use of P-containing OSDAs has been employed ...
AgY zeolite as catalyst for the selective catalytic oxidation of NH3

Martinez-Ortigosa, Joaquin; Lopes, Christian W.; Agostini, Giovanni; Palomares Gimeno, Antonio Eduardo; Blasco Lanzuela, Teresa; Rey Garcia, Fernando (Elsevier, 2021-08)

[EN] Ag-exchanged Y zeolites (Si/Al = 2.5; Ag/Al = 0.30-0.95) have been tested in the NH3-SCO reaction, the most promising method for the elimination of ammonia emissions, and deeply characterized before and after reaction ...
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 ...
Ammonia-Containing Species Formed in Cu-Chabazite As Per In SituEPR, Solid-State NMR, and DFT Calculations

Moreno González, Marta; Hueso Fuentes, Beatriz; Boronat Zaragoza, Mercedes; Blasco Lanzuela, Teresa; Corma Canós, Avelino (American Chemical Society, 2015-03-19)

Nowadays, the most attractive technology for the elimination of nitric oxides from the exhaust gas of diesel vehicles is the selective catalytic reduction with ammonia (NH3-SCR-NOx) using Cu zeolite with the chabazite ...
Aplicación de la resonancia magnética nuclear (RMN) al estudio de procesos catalíticos sostenibles: transposición de Beckmann y acilación de sustratos aromáticos

Lezcano González, Inés (Universitat Politècnica de València, 2012-12-27)

En la presente tesis doctoral se ha estudiado el mecanismo de la reacción de acilación de sustratos aromáticos utilizando como catalizadores zeolitas con diferente topología. La combinación de la RMN de sólidos in situ con ...
Aplicación de métodos espectroscópicos "in situ" en el estudio de la reacción de transposición de Beckmann catalizada por sólidos porosos

Fernández Sánchez, Ana Belén (Universitat Politècnica de València, 2009-01-19)

La reacción de transposición de Beckmann de cetoximas en amidas es una de las etapas fundamentales en la producción industrial de la -caprolactama, precursor en la fabricación de Nylon-6 a partir de ciclohexanona oxima. ...
APLICACIÓN DE TÉCNICAS ESPECTROSCÓPICAS IN SITU AL ESTUDIO DE REACCIONES DE INTERÉS MEDIOAMBIENTAL: ELIMINACIÓN DE ÓXIDOS DE NITRÓGENO

Moreno González, Marta (Universitat Politècnica de València, 2015-07-02)

[EN] The Selective Catalytic Reduction of nitrogen oxides (SCR-NOx) is nowadays a very relevant process for reducing NOx emissions in diesel vehicles, which must comply with increasingly restrictive European regulations. ...
Caracterización de catalizadores de cobre utilizados en la reacción de reducción catalítica selectiva de óxidos de nitrógeno utilizando técnicas de resonancia magnética

Moreno González, Marta (Universitat Politècnica de València, 2012-05-04)

Se ha llevado a cabo el estudio de tres catalizadores zeolíticos intercambiados con Cu(II): Cu-IM5 (relación molar Si/Al = 12, Cu/Al=0,65), Cu-SSZ-13 (Si/Al=22, Cu/Al=0,46) y Cu-SSZ-13 (Si/Al=11, Cu/Al=0,15), que muestran ...
Caracterización estructural de zeolitas por Resonancia Magnetica Nuclear y su aplicación como catalizadores

Martínez Ortigosa, Joaquín (Universitat Politècnica de València, 2021-04-26)

[ES] Las zeolitas son sólidos cristalinos microporosos con canales y cavidades de tamaños moleculares, que pueden presentar gran variedad de estructuras y composición química, lo que las hace útiles como catalizadores en ...
Carbonylation of Methanol on Metal Acid Zeolites: Evidence for a Mechanism Involving a Multisite Active Center

Blasco Lanzuela, Teresa; Boronat Zaragoza, Mercedes; Concepción Heydorn, Patricia; Corma Canós, Avelino; Law, David; Vidal Moya, José Alejandro (John Wiley & Sons, 2007)
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 ...
Control de las propiedades ácidas de las zeolitas MFI y RTH sintetizadas con agentes directores de estructura fosforados

Fernandez Vazquez, Alicia (Universitat Politècnica de València, 2021-01-28)

[ES] Las zeolitas son sólidos cristalinos microporosos, generalmente aluminosilicatos, que se utilizan ampliamente como catalizadores para llevar a cabo diferentes reacciones de interés industrial. Uno de los principales ...
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 ...
Estudio por rmn "in-situ" de la reacción de hidroxialquilación de guayacol y 13c-formaldehido utilizando zeolitas acidas como catalizadores

Hueso Fuentes, Beatriz (Universitat Politècnica de València, 2015-06-02)

[EN] A study was performed by NMR-Solids, employed "in-situ" technics of the Hidroxyalkylation reaction of guaiacol and different sources of 13C-formaldehyde in zeolite type H-MOR. The used of DFT/GIAO methods allow ...
Evidence of a Cu2+-Alkane Interaction in Cu-Zeolite Catalysts Crucial for the Selective Catalytic Reduction of NO with Hydrocarbons

Moreno González, Marta; Palomares Gimeno, Antonio Eduardo; Chiesa, Mario; Boronat Zaragoza, Mercedes; Giamello, Elio; Blasco Lanzuela, Teresa (American Chemical Society, 2017)

[EN] The selective catalytic reduction of NOx with hydrocarbons (HC-SCR-NOx) on Cu-zeolites is an alternative for the depletion of NOx present in the exhaust gas of diesel engines. The role played by copper and the general ...
Gold(III) stabilized over ionic liquids grafted on MCM-41 for highly efficient three component coupling reactions

Bobadilla, Luis F; Blasco Lanzuela, Teresa; Odriozola, José Antonio (Royal Society of Chemistry, 2013)

[EN] Two alkoxysilyl-modified ionic liquids (ILs) have been synthesized and further grafted onto mesoporous silica, MCM-41; these ionic liquids were used for dispersing AuCl3 catalysts that activate C-H bonds as required ...
Host-Guest and Guest-Guest Interactions of P- and N-Containing Structure Directing Agents Entrapped inside MFI-Type Zeolite by Multinuclear NMR Spectroscopy

Martinez-Ortigosa, Joaquin; Simancas-Coloma, Jorge; Vidal Moya, José Alejandro; Gaveau, Philippe; Rey Garcia, Fernando; Alonso, B.; Blasco Lanzuela, Teresa (American Chemical Society, 2019-09-12)

[EN] Highly crystalline pure silica MFI zeolites have been synthesized using tetraethylammonium (TEA), tetraethylphosphonium (TEP), or a mixture of both cations in different proportions as organic structure directing agents ...
Identification of Active Surface Species for Friedel Crafts Acylation and Koch Carbonylation Reactions by in situ Solid-State NMR Spectroscopy

Lezcano González, Inés; Vidal Moya, José Alejandro; Boronat Zaragoza, Mercedes; Blasco Lanzuela, Teresa; Corma Canós, Avelino (Wiley-VCH Verlag, 2013-05-03)

Finding the culprits: In situ NMR spectroscopy combined with theoretical calculations show the formation of acetyl species covalently bound to framework oxygen atoms in acid zeolites. These species, and not the usually ...
Modeling of EPR Parameters for Cu(II): Application to the Selective Reduction of NOx Catalyzed by Cu-Zeolites

Fernández-Villanueva, Estefanía; Moreno González, Marta; Moliner Marin, Manuel; Blasco Lanzuela, Teresa; Boronat Zaragoza, Mercedes; Corma Canós, Avelino (Springer-Verlag, 2018-06)

[EN] We present a combined theoretical-experimental study aiming to provide information about the location and coordination environment of the Cu2+ species involved in the selective reduction of NOx with NH3 catalyzed by ...