Jorda Moret, Jose Luis
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- PublicaciónITQ-69: A Germanium-Containing Zeolite and its Synthesis, Structure Determination, and Adsorption Properties(John Wiley & Sons, 2021-05-17) Sala-Gascon, Andres; Pérez-Botella, Eduardo; Jorda Moret, Jose Luis; Cantin Sanz, Angel; Rey Garcia, Fernando; Valencia Valencia, Susana; Instituto Universitario Mixto de Tecnología Química; Ministerio de Educación, Cultura y Deporte; Ministerio de Ciencia, Innovación y Universidades; MINISTERIO DE ECONOMÍA, INDUSTRIA Y COMPETITIVIDAD[EN] In this work, a new zeolite named as ITQ-69, has been synthesized, characterized and its application as selective adsorbent for industrially relevant light olefins/paraffins separations has been assessed. This material has been obtained as pure germania as well as silica-germania zeolites with different Si/Ge ratios using a diquaternary ammonium cation as organic structure directing agent. Its structure was determined by single-crystal X-Ray diffraction showing a triclinic unit cell forming a tridirectional small pore channel system (8x8x8R). Also, it has been found that Si preferentially occupies some special T sites of the structure as deduced from Rietveld analysis of the powder X-ray diffraction patterns. In addition, the new zeolite ITQ-69 has been found to be stable upon calcination and thus, its adsorption properties were evaluated, showing a promising kinetic selectivity for light olefin separations in the C3 fraction.
- PublicaciónSynthesis and structure determination via ultra-fast electron diffraction of the new microporous zeolitic germanosilicate ITQ-62(The Royal Society of Chemistry, 2018) Bieseki, Lindiane; Simancas Coloma, Raquel; Jorda Moret, Jose Luis; Bereciartua-Pérez, Pablo Javier; Cantin Sanz, Angel; Simancas-Coloma, Jorge; Pergher, Sibele B.; Valencia Valencia, Susana; Rey Garcia, Fernando; Corma Canós, Avelino; Instituto Universitario Mixto de Tecnología Química; European Regional Development Fund; Ministerio de Economía y Competitividad[EN] Here, we present the synthesis and structure determination of the new zeolite ITQ-62. Its structure was determined via ultra-fast electron diffraction tomography and refined using powder XRD data of the calcined material. This new zeolite contains a tridirectional channel system of highly distorted 8-rings, as well as a monodirectional 12-ring channel system.
- PublicaciónGas confinement in compartmentalized coordination polymers for highly selective sorption(The Royal Society of Chemistry, 2017-04-01) Giménez-Marqués, Mónica; Calvo Galve, Néstor; Palomino Roca, Miguel; Valencia Valencia, Susana; Rey Garcia, Fernando; Sastre Navarro, German Ignacio; Vitorica-Yrezabal, Iñigo J.; Jiménez-Ruiz, Mónica; Rodríguez-Velamazán, J. Alberto; González, Miguel A.; Jorda Moret, Jose Luis; Coronado, Eugenio; Minguez Espallargas, Guillermo; Instituto Universitario Mixto de Tecnología Química; European Commission; Generalitat Valenciana; European Regional Development Fund; Ministerio de Economía y Competitividad[EN] Discrimination between different gases is an essential aspect for industrial and environmental applications involving sensing and separation. Several classes of porous materials have been used in this context, including zeolites and more recently MOFs. However, to reach high selectivities for the separation of gas mixtures is a challenging task that often requires the understanding of the specific interactions established between the porous framework and the gases. Here we propose an approach to obtain an enhanced selectivity based on the use of compartmentalized coordination polymers, named CCP-1 and CCP-2, which are crystalline materials comprising isolated discrete cavities. These compartmentalized materials are excellent candidates for the selective separation of CO2 from methane and nitrogen. A complete understanding of the sorption process is accomplished with the use of complementary experimental techniques including X-ray diffraction, adsorption studies, inelastic- and quasi-elastic neutron scattering, magnetic measurements and molecular dynamics calculations.
- PublicaciónSynthesis of a Novel Zeolite through a Pressure-Induced Reconstructive Phase Transition Process(Wiley-VCH Verlag, 2013-09) Jorda Moret, Jose Luis; Rey Garcia, Fernando; Sastre Navarro, German Ignacio; Valencia Valencia, Susana; Palomino Roca, Miguel; Corma Canós, Avelino; Segura Garcia del Rio, Alfredo; Errandonea, Daniel; Lacomba Perales, Raúl; Manjón Herrera, Francisco Javier; Gomis Hilario, Oscar; Kleppe, Annette K.; Jephcoat, Andrew P.; Amboage, Mónica; Rodríguez-Velamazán, J. Alberto; Departamento de Física Aplicada; Instituto Universitario Mixto de Tecnología Química; Escuela Técnica Superior de Ingeniería Aeroespacial y Diseño Industrial; Instituto de Diseño para la Fabricación y Producción Automatizada; Escuela Politécnica Superior de Alcoy; Centro de Tecnologías Físicas: Acústica, Materiales y Astrofísica; Ministerio de Ciencia e Innovación; Generalitat Valenciana; Universitat Politècnica de València; Ministerio de Economía y CompetitividadThe first pressure-induced solid-phase synthesis of a zeolite has been found through compression of a common zeolite, ITQ-29 (see scheme, Si yellow, O red). The new microporous structure, ITQ-50, has a unique structure and improved performance for propene/propane separation with respect the parent material ITQ-29.
- PublicaciónA new photochemical based route for the preparation of organic structure directing agents useful for zeolite synthesis(Elsevier, 2007) Cantin Sanz, Angel; Leiva Herrero, Sandra; Jorda Moret, Jose Luis; Valencia Valencia, Susana; Rey Garcia, Fernando; Corma Canós, Avelino; Instituto Universitario Mixto de Tecnología Química; Ministerio de Educación y Ciencia[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 be able to direct the synthesis of zeolites. The main benefit of this new synthetic route is that it opens the possibility of obtaining a large number of OSDA's with high rigidity and low C/N ratio. Here, we report the employ of some OSDA's obtained by using this approach in the crystallization of pure silica, silico-aluminate and silico-germanate zeolites. This preliminary exploration has yielded to obtain by first time two new materials, ITQ-32 and ITQ-35, obtained as silico-aluminate and silico-germanate, respectively. Furthermore, other zeolites, such as Beta, Nonasil, and ZSM-12 have also been obtained, showing the ability of this new type of OSDA's for directing the crystallization of zeolites.
- PublicaciónZeolite Rho: a highly selective adsorbent for CO2/CH4 separation induced by a structural phase modification(Royal Society of Chemistry, 2012) Palomino Roca, Miguel; Corma Canós, Avelino; Jorda Moret, Jose Luis; Rey Garcia, Fernando; Valencia Valencia, Susana; Instituto Universitario Mixto de Tecnología Química; European Commission; Ministerio de Ciencia e Innovación[EN] Zeolite Rho is able to successfully separate CO2 from CH4 with the highest selectivity ever observed on the basis of pore diameter and surface polarity. The adsorption of CO2 provokes structural changes in the zeolite Rho.
- PublicaciónStructural study of pure silica and Ge-containing zeolite ITQ-24(Oldenbourg Wissenschaftsverlag, 2007) Jorda Moret, Jose Luis; Cantin Sanz, Angel; Corma Canós, Avelino; Díaz Cabañas, Mª José; Leiva Herrero, Sandra; Moliner Marin, Manuel; Rey Garcia, Fernando; Sabater Picot, Mª José; Valencia Valencia, Susana; Instituto Universitario Mixto de Tecnología Química; Generalitat Valenciana; Ministerio de Ciencia y Tecnología[EN] The possibility to obtain zeolite ITQ-24 in a wide Si/Ge range of compositions have made possible to study the preferential location of Ge atoms in the zeolitic framework. Also, it has allowed studying the effect of zeolite composition on the thermal properties of these materials, varying their composition while maintaining a neutral framework without extra-framework cations.
- PublicaciónCharge matching between the occluded organic cations and zeolite framework as structure directing effect in zeolite synthesis(Elsevier, 2008) Marqués, Blanca; Leiva Herrero, Sandra; Cantin Sanz, Angel; Jorda Moret, Jose Luis; Sabater Picot, Mª José; Corma Canós, Avelino; Valencia Valencia, Susana; Rey Garcia, Fernando; Instituto Universitario Mixto de Tecnología Química; Ministerio de Educación y Ciencia[EN] The charge matching effect has been found to be an important parameter driving the synthesis towards particular zeolite frameworks. This has been evidenced by isomorphous incorporation of Aluminium into the zeolite synthesis as well as by incorporation of fluoride anions at zeolite interstices. In both cases, negatively zeolite frameworks are developed and the resulting structure must provide enough space to locate the compensating organic cations. Therefore, this can be used by combining with the appropriate selection of organic polycations to direct the synthesis towards a particular structure, such as the formation of Ge-ITQ-24 materials.
- PublicaciónCation Gating and Relocation during the Highly Selective Trapdoor Adsorption of CO2 on Univalent Cation Forms of Zeolite Rho(American Chemical Society, 2014-03-25) 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; Instituto Universitario Mixto de Tecnología Química; Ministerio de Ciencia e Innovación; Diamond Light Source; UK Research and Innovation; Ministerio de Economía y CompetitividadAdsorption 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 the order Na+ > K+ > Cs+. Structural studies by powder X-ray diffraction (PXRD) suggest that cations in intercage window sites block CH4 adsorption; however, in the presence of CO2, the cations can move enough to permit adsorption (several angstroms). Determination of time-averaged cation positions during CO2 adsorption at 298 K by Rietveld refinement against PXRD data shows that (i) in Na-Rho, there is a small relaxation of Na+ cations within single eight-ring (S8R) sites, (ii) in Cs-Rho, D8R cations move to S8R sites (remaining within windows) and two phases of Cs-Rho (I4̅3m, Im3̅m) are present over a wide pressure range, and (iii) in K-Rho, there is relocation of some K+ cations from window sites to cage sites and two phases coexist, each with I4̅3m symmetry, over the pressure range of 0 1 bar. The final cation distributions at high PCO2 are similar for Na-, K-, and Cs-Rho, and adsorption in each case is only possible by trapdoor -type cation gating. Complementary studies on K-chabazite (Si/Al = 3) also show changes in time-averaged cation location during CO2 adsorption.
- PublicaciónControl of zeolite framework flexibility and pore topology for separation of ethane and ethylene(American Association for the Advancement of Science (AAAS), 2017-11-24) Bereciartua-Pérez, Pablo Javier; Cantin Sanz, Angel; Corma Canós, Avelino; Jorda Moret, Jose Luis; Palomino Roca, Miguel; Rey Garcia, Fernando; Valencia Valencia, Susana; Corcoran Jr., Edward W.; Kortunov, Pavel; Ravikovitch, Peter I.; Burton, Allen; Yoon, Chris; Wang, Yu; Paur, Charanjit; Guzman, Javier; Bishop, Adeana R.; Casty, Gary L.; Instituto Universitario Mixto de Tecnología Química; European Regional Development Fund; Ministerio de Economía y Competitividad; ExxonMobil Research and Engineering Company[EN] The discovery of new materials for separating ethylene from ethane by adsorption, instead of using cryogenic distillation, is a key milestone for molecular separations because of the multiple and widely extended uses of these molecules in industry. This technique has the potential to provide tremendous energy savings when compared with the currently used cryogenic distillation process for ethylene produced through steam cracking. Here we describe the synthesis and structural determination of a flexible pure silica zeolite (ITQ-55). This material can kinetically separate ethylene from ethane with an unprecedented selectivity of ~100, owing to its distinctive pore topology with large heart-shaped cages and framework flexibility. Control of such properties extends the boundaries for applicability of zeolites to challenging separations.