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Browsing by Author "Rey Garcia, Fernando"

Now showing items 1-20 of 111

A highly stable and hierarchical tetrathiafulvalene-based metal organic framework with improved performance as a solid catalyst

Souto, Manuel; Santiago-Portillo, Andrea; Palomino Roca, Miguel; Vitorica-Yrezabal, Iñigo J.; Vieira, Bruno J. C.; Waerenborgh, João C.; Valencia Valencia, Susana; Navalón Oltra, Sergio; Rey Garcia, Fernando; García Gómez, Hermenegildo; Minguez Espallargas, Guillermo (The Royal Society of Chemistry, 2018-03)

[EN] Herein we report the synthesis of a tetrathiafulvalene (TTF)-based MOF, namely MUV-2, which shows a non-interpenetrated hierarchical crystal structure with mesoporous one-dimensional channels of ca. 3 nm and orthogonal ...
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 ...
A New Aluminosilicate Molecular Sieve with a System of Pores between Those of ZSM-5 and Beta Zeolite

Moliner Marin, Manuel; Gonzalez, Jorge; Portilla Ovejero, Mª Teresa; Willhammar, Tom; Rey Garcia, Fernando; Llopis Alonso, Francisco Javier; Zou, Xiaodong; Corma Canós, Avelino (American Chemical Society, 2011-06)

[EN] A new aluminosilicate zeolite (ITQ-39) has been synthesized. This is an extensively faulted structure with very small domains that makes the structure elucidation very difficult. However, a combination of adsorption ...
A new metal exchanged zeolite for a present environmental problem. An in-situ XAS study

Alonso Escobar, Cristina; Franch Martí, Cristina; Palomares Gimeno, Antonio Eduardo; Rey Garcia, Fernando; Guilera, Gemma (IOP Publishing, 2013)

The medium pore zeolite, TNU-9, is prepared and studied for the selective catalytic reduction (SCR) of NO using C3H8 as the reducing agent. The catalytic activity of TNU-9 zeolites for the SCR is comparable to other known ...
A new microporous zeolitic silicoborate (ITQ-52) with interconnected small and medium pores

Simancas Coloma, Raquel; Jorda Moret, Jose Luis; Rey Garcia, Fernando; Corma Canós, Avelino; Cantin Sanz, Angel; Peral, Inmaculada; Popescu, Catalin (American Chemical Society, 2014-03-05)

A new zeolite (named as ITQ-52) having large cavities and small and medium channels has been synthesized. This was achieved by using a new family of amino-phosphonium cations as organic structure directing agents (OSDA). ...
A new photochemical based route for the preparation of organic structure directing agents useful for zeolite synthesis

Cantin Sanz, Angel; Leiva Herrero, Sandra; Jorda Moret, Jose Luis; Valencia Valencia, Susana; Rey Garcia, Fernando; Corma Canós, Avelino (Elsevier, 2007)

[EN] A new photochemically induced [2+2] cycloaddition route for the synthesis of amines has been successfully applied for the preparation of a series of organic structure directing agents (OSDA's) that has been found to ...
A New Synthesis Route of the Tridirectional 12 Ring Channel Zeolite ITQ-7

Cantin Sanz, Angel; Corma Canós, Avelino; Díaz Cabañas, Mª José; Rey Garcia, Fernando; Sastre Navarro, German Ignacio (Elsevier, 2004)

[EN] A new synthesis procedure for the synthesis of ITQ-7 zeolites is reported that has been afforded by combining theoretical and experimental approaches. This new synthesis method is specially relevant since the earlier ...
Acid properties of organosiliceous hybrid materials based on pendant (fluoro)aryl-sulfonic groups through a spectroscopic study with probe molecules

Erigoni, Andrea; Paul, Geo; Meazza, Marta; Hernández Soto, María Consuelo; Miletto, Ivana; Rios, Ramon; Segarra-Almela, Mª De La Candelaria; Marchese, Leonardo; Raja, Robert; Rey Garcia, Fernando; Gianotti, Enrica; DÍAZ MORALES, URBANO MANUEL (The Royal Society of Chemistry, 2019-11-21)

[EN] Two different heterogeneous catalysts carrying aryl-sulfonic moieties, in which the aromatic ring was either fluorinated or not, were successfully synthesized. The multi-step synthetic approaches implemented involved ...
Adsorption of Alkanes in Zeolites LTA and FAU: Quasi-Equilibrated Thermodesorption Supported by Molecular Simulations

Slawek, Andrzej; Vicent-Luna, José Manuel; Ogorzaly, Karolina; Valencia Valencia, Susana; Rey Garcia, Fernando; Makowski, Waclaw; Calero, Sofia (American Chemical Society, 2019-11-12)

[EN] Adsorption of n-alkanes from pentane to decane (C5¿C10) in zeolites LTA (ITQ-29 and 5A) and faujasite (FAU, dealuminated high-silica Na-FAU, NaY, and NaX) as well as branched hexane isomers in FAU was investigated by ...
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 ...
An in situ XAS study of the activation of precursor-dependent Pd nanoparticles

Wittee Lopes, Christian; Cerrillo, José Luis; Palomares Gimeno, Antonio Eduardo; Rey Garcia, Fernando; Agostini, G. (The Royal Society of Chemistry, 2018-05-14)

[EN] The activation of precursor-dependent Pd nanoparticles was comprehensively followed by in situ X-ray absorption spectroscopy on two inorganic supports for rationalizing the final catalytic activity. Two series of ...
An INS study of entrapped organic cations within the micropores of zeolite RTH

Lemishko, Tetiana; Simancas-Coloma, Jorge; Hernández Rodríguez, Manuel; Jiménez-Ruiz, Mónica; Sastre Navarro, German Ignacio; Rey Garcia, Fernando (Royal Society of Chemistry, 2016-06-14)

[EN] Two different organic cations (structure directing agents, SDAs) have been selected because of their ability to drive the synthesis of zeolites towards the same microporous material, RUB-13 (RTH), both being ...
An Ultrahigh CO2-Loaded Silicalite-1 Zeolite: Structural Stability and Physical Properties at High Pressures and Temperatures

Marqueno, Tomas; Santamaria-Perez, David; Ruiz-Fuertes, Javier; Chulia-Jordan, Raquel; Jorda Moret, Jose Luis; Rey Garcia, Fernando; McGuire, Chris; Kavner, Abby; MacLeod, Simon; Daisenberger, Dominik; Popescu, Catalin; Rodríguez-Hernández, Plácida; Munoz, Alfonso (American Chemical Society, 2018-06-04)

[EN] We report the formation of an ultrahigh CO2-loaded pure-SiO2, silicalite-1 structure at high pressure (0.7 GPa) from the interaction of empty zeolite and fluid CO, medium. The CO2-filled structure was characterized ...
Arsenolite: a quasi-hydrostatic solid pressure transmitting medium

Sans-Tresserras, Juan Ángel; Manjón, F. J.; Popescu, C.; Muñoz, A.; Rodríguez-Hernández, P.; Jordá, J. L.; Rey Garcia, Fernando (IOP Publishing, 2016-11-30)

This study reports the experimental characterization of the hydrostatic properties of arsenolite (As4O6), a molecular solid which is one of the softest minerals in the absence of hydrogen bonding. The high compressibility ...
Bifunctional hybrid organosiliceous catalysts for aldol condensation-hydrogenation tandem reactions of furfural in continuous-flow reactor

Hernández-Soto, M.C.; Erigoni, Andrea; Segarra, C.; Rey Garcia, Fernando; DÍAZ MORALES, URBANO MANUEL; Gianotti, E.; Miletto, I.; Pera-Titus, M. (Elsevier, 2022-08-05)

[EN] A series of organic-inorganic hybrid bifunctional organosiliceous catalysts with accessible pendant amine groups as single basic sites (such as propylamine, diethylamine, pyrrolidine) and Pd nanoparticles was prepared ...
Bioethanol steam reforming on Ni-based modified mordenite. Effect of mesoporosity, acid sites and alkaline metals

Da Costa Serra, Javier Francisco; Navarro Ruiz, María Teresa; Rey Garcia, Fernando; Chica, Antonio (Elsevier, 2012-04)

Support plays an important role in the preparation of highly active and selective bioethanol steam reforming catalysts since it helps in the dispersion of metal particles and enhances its activity via metal-support ...
Capturing renewable isobutanol from model vapor mixtures using an all-silica beta zeolite

Claessens, Benjamin; Gittevrongel, Guille R.; Rey Garcia, Fernando; Valencia Valencia, Susana; Cousin-Saint-Remi, Julien; Baron, Gino V.; Denayer, Joeri F.M. (Elsevier, 2021-05-15)

[EN] Isobutanol is a promising renewable platform chemical, produced via fermentation. In the conventional downstream processing, isobutanol is recovered from the fermentation broth via evaporation or gas-stripping, followed ...
Caracterización mediante técnicas espectroscópicas in situ de catalizadores de Cu y Co sobre zeolitas utilizados en la eliminación de NOx por reducción catalítica selectiva (SCR)

Alonso Escobar, Cristina (Universitat Politècnica de València, 2012-05-15)

La reducción de óxidos de nitrógeno sobre materiales zeolíticos intercambiados con metales de transición es una de las rutas más prometedoras para la disminución de estos contaminantes en emisores móviles. Sin embargo, existe ...
Catalytic cracking performance of alkaline-treated zeolite Beta in the terms of acid sites properties and their accessibility

Tarach, K.; Gora-Marek, K.; Tekla, J.; Brylewska, K.; Datka, J.; Mlekodaj, K.; Makowski, W.; Igualada López, María Cristina; Martínez-Triguero, Joaquín; Rey Garcia, Fernando (Elsevier, 2014-04)

The zeolite Beta is considered as a promising additive for FCC catalyst in diesel oil production. In this article, it is shown that hierarchical zeolite Beta obtained by an optimized desilication procedure increases diesel ...
Cation Gating and Relocation during the Highly Selective Trapdoor Adsorption of CO2 on Univalent Cation Forms of Zeolite Rho

Lozinska, Magdalena M.; Mowat, John P. S.; Wright, Paul A.; Thompson, Stephen P.; Jorda Moret, Jose Luis; Palomino Roca, Miguel; Valencia Valencia, Susana; Rey Garcia, Fernando (American Chemical Society, 2014-03-25)

Adsorption of CO2 and CH4 has been measured on the Na-, K-, and Cs-forms of zeolite Rho (0 9 bar; 283 333 K). Although CH4 is excluded, CO2 is readily taken up, although the uptake at low pressures decreases strongly, in ...