Jorda Moret, Jose Luis
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- PublicaciónUltrafast Electron Diffraction Tomography for Structure Determination of the New Zeolite ITQ-58(American Chemical Society, 2016-08-17) Simancas-Coloma, Jorge; Simancas Coloma, Raquel; Bereciartua-Pérez, Pablo Javier; Jorda Moret, Jose Luis; Rey Garcia, Fernando; Corma Canós, Avelino; Nicolopoulos ., Stavros; Das, Partha Pratim; Gemmi, Mauro; Mugnaioli, Enrico; Instituto Universitario Mixto de Tecnología Química; European Research Council; Ministerio de Economía y Competitividad; Generalitat Valenciana[EN] In this work a new ultrafast data collection strategy for electron diffraction tomography is presented that allows reducing data acquisition tithe by one order of Magnitude.,,This Methodology minimizes the radiation damage of, beam-sensitive materials, such as microporous materials. This method, combined with the precession of the electron beam, provides high quality data enabling the determination of very complex structures. Most importantly,, the implementation of this new, electron diffraction methodology is, easily affordable in any modem electron Microscope. As a proof of concept, we have solved a new highly complex zeolitic structure named ITQ-58, with a very low symmetry (triclinic) and a large unit cell volume (1874.61(3)), containing 16 silicon and 32 oxygen atoms in its asymmetric unit, which would be very difficult to solve with the state of the art techniques.
- PublicaciónRational Design and HT Techniques Allow the Synthesis of New IWR Zeolite Polymorphs(American Chemical Society, 2006) Cantin Sanz, Angel; Corma Canós, Avelino; Díaz Cabañas, Mª José; Jorda Moret, Jose Luis; Moliner Marin, Manuel; Instituto Universitario Mixto de Tecnología Química; Ministerio de Ciencia y Tecnología
- PublicaciónITQ-54: a multi-dimensional extra-large pore zeolite with 20 × 14 × 12-ring channels(Royal Society of Chemistry: Chemical Science, 2015) Jiang, Jiuxing; Yun, Yifeng; Zou, Xiaodong; Jorda Moret, Jose Luis; Corma Canós, Avelino; Instituto Universitario Mixto de Tecnología Química; Knut and Alice Wallenberg Foundation; Ministerio de Economía y Competitividad; Ministerio de Ciencia e Innovación; Generalitat Valenciana; Swedish Research Council; Swedish Governmental Agency for Innovation SystemsA multi-dimensional extra-large pore silicogermanate zeolite, named ITQ-54, has been synthesised by in situ decomposition of the N,N-dicyclohexylisoindolinium cation into the N-cyclohexylisoindolinium cation. Its structure was solved by 3D rotation electron diffraction (RED) from crystals of ca. 1 μm in size. The structure of ITQ-54 contains straight intersecting 20 × 14 × 12-ring channels along the three crystallographic axes and it is one of the few zeolites with extra-large channels in more than one direction. ITQ-54 has a framework density of 11.1 T atoms per 1000 Å3, which is one of the lowest among the known zeolites. ITQ-54 was obtained together with GeO2 as an impurity. A heavy liquid separation method was developed and successfully applied to remove this impurity from the zeolite. ITQ-54 is stable up to 600 °C and exhibits permanent porosity. The structure was further refined using powder X-ray diffraction (PXRD) data for both as-made and calcined samples.
- PublicaciónSynthesis and Structure of a 22 x 12 x 12 Extra-Large Pore Zeolite ITQ-56 Determined by 3D Electron Diffraction(American Chemical Society, 2021-06-02) Kapaca, Elina; Jiang, Jiuxing; Cho, Jung; Jorda Moret, Jose Luis; Díaz Cabañas, Mª José; Zou, Xiaodong; Corma Canós, Avelino; Willhammar, Tom; Instituto Universitario Mixto de Tecnología Química; European Commission; Swedish Research Council; Knut and Alice Wallenberg Foundation; National Natural Science Foundation of China; MINISTERIO DE ECONOMÍA, INDUSTRIA Y COMPETITIVIDAD[EN] A multidimensional extra-large pore germanosilicate, denoted ITQ-56, has been synthesized by using modified memantine as an organic structure-directing agent. ITQ-56 crystallizes as plate-like nanocrystals. Its structure was determined by 3D electron diffraction/MicroED. The structure of ITQ-56 contains extra-large 22-ring channels intersecting with straight 12-ring channels. ITQ-56 is the first zeolite with 22-ring pores, which is a result of ordered vacancies of double 4-ring (d4r) units in a fully connected zeolite framework. The framework density is as low as 12.4 T atoms/1000 angstrom(3). The discovery of the ITQ-56 structure not only fills the missing member of extra-large pore zeolite with 22-ring channels but also creates a new approach of making extra-large pore zeolites by introducing ordered vacancies in zeolite frameworks.
- PublicaciónSpectroscopic, calorimetric, and catalytic evidences of hydrophobicity on Ti-MCM-41 silylated materials for olefin epoxidations(Elsevier, 2015-10-25) Silvestre Albero, Joaquin; Domine, Marcelo Eduardo; Jorda Moret, Jose Luis; Navarro Villalba, Mª Teresa; Rey Garcia, Fernando; Rodriguez-Reinoso, Francisco; Corma Canós, Avelino; Instituto Universitario Mixto de Tecnología Química; Ministerio de Economía y Competitividad; Ministerio de Ciencia e Innovación; Generalitat Valenciana; Consejo Superior de Investigaciones CientíficastHydrophobic Ti-MCM-41 samples prepared by post-synthesis silylation treatment demonstrate to behighly active and selective catalysts in olefins epoxidation by using organic hydroperoxides as oxidizingagents in liquid phase reaction systems. Epoxide yields show important enhancements with increasedsilylation degrees of the Ti-mesoporous samples. Catalytic studies are combined and correlated withspectroscopic techniques (e.g. XRD, XANES, UV-Visible,29Si MAS-NMR) and calorimetric measurementsto better understand the changes in the surface chemistry of Ti-MCM-41 samples due to the post-synthesis silylation treatment and to ascertain the role of these trimethylsilyl groups incorporated inolefin epoxidation. In such manner, the effect of the organic moieties on solids, and both water and gly-col molecules contents on the catalytic activity and selectivity are analyzed in detail. Results show thatthe hydrophobicity level of the samples is responsible for the decrease in water adsorption and, conse-quently, the negligible formation of the non-desired glycol during the catalytic process. Thus, catalystdeactivation by glycol poisoning of Ti active sites is greatly diminished, this increasing catalyst stabilityand leading to practically quantitative production of the corresponding epoxide. The extended use ofthese hydrophobic Ti-MCM-41 catalysts together with organic hydroperoxides for the highly efficientand selective epoxidation of natural terpenes is also exemplified.
- PublicaciónSynthesis and Structure Determination of the Hierarchical Meso-Microporous Zeolite ITQ-43(American Association for the Advancement of Science (AAAS), 2011) Jiang, Jiuxing; Jorda Moret, Jose Luis; Yu, Jihong; Baumes, Laurent Allan; Mugnaioli, Enrico; Díaz Cabañas, Mª José; Kolb, Ute; Corma Canós, Avelino; Instituto Universitario Mixto de Tecnología Química; Generalitat Valenciana; China Scholarship Council; Deutsche Forschungsgemeinschaft; Ministerio de Ciencia e Innovación; National Basic Research Program of China; Consejo Superior de Investigaciones Científicas; National Key Research and Development Program of China[EN] The formation of mesopores in microporous zeolites is generally performed by postsynthesis acid, basic, and steam treatments. The hierarchical pore systems thus formed allow better adsorption, diffusion, and reactivity of these materials. By combining organic and inorganic structure-directing agents and high-throughput methodologies, we were able to synthesize a zeolite with a hierarchical system of micropores and mesopores, with channel openings delimited by 28 tetrahedral atoms. Its complex crystalline structure was solved with the use of automated diffraction tomography.
- 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.
- PublicaciónModular organic structure-directing agents for the synthesis of zeolites(American Association for the Advancement of Science (AAAS), 2010) Simancas Coloma, Raquel; Dari, Djamal; Velamazan, Noemi; Navarro Villalba, Mª Teresa; Cantin Sanz, Angel; Jorda Moret, Jose Luis; Sastre Navarro, German Ignacio; Corma Canós, Avelino; Rey Garcia, Fernando; Instituto Universitario Mixto de Tecnología Química; Ministerio de Ciencia e Innovación; Ministerio de Economía y Competitividad; Generalitat Valenciana[EN] Organic structure-directing agents (OSDAs) are used to guide the formation of particular types of pores and channels during the synthesis of zeolites. We report that the use of highly versatile OSDAs based on phosphazenes has been successfully introduced for the synthesis of zeolites. This approach has made possible the synthesis of the elusive boggsite zeolite, which is formed by 10- and 12-ring intersecting channels. This topology and these pore dimensions present interesting opportunities for catalysis in reactions of industrial relevance.
- PublicaciónSynthesis of isomorphically substituted Ru manganese molecular sieves and their catalytic properties for selective alcohol oxidation(The Royal Society of Chemistry, 2020-02-21) Sabate-Fornons, Ferran; Jorda Moret, Jose Luis; Sabater Picot, Mª José; Corma Canós, Avelino; Instituto Universitario Mixto de Tecnología Química; European Commission; Agencia Estatal de Investigación; Ministerio de Economía y Competitividad[EN] Ruthenium has been incorporated into the framework of the cryptomelane type manganese oxide K-OMS-2 ([Ru]-K-OMS2) and the presence of this element into the structure has been assessed by combining analytical and vibrational techniques such as ICP, UV-Vis, FT-IR and Raman spectroscopies, X-ray diffraction, electron microscopy (HR-TEM and SEM), TPR-H-2, and X-ray photoelectron spectroscopy. Rietveld refinement of the X-ray diffractogram has allowed to estimate changes in the values of cell parameters which were compatible with an isomorphic ruthenium substitution into the original structure. These calculations are in agreement with the observed increase in the interplanar spacing of (100) planes from 7.1 angstrom to 7.7 angstrom for the Ru-doped material.
- 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.
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