Listar por autor "Losilla, Enrique R."
Mostrando ítems 21-40 de 44
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Multifunctional lanthanum tetraphosphonates: Flexible, ultramicroporous and proton-conducting hybrid frameworks
Pérez-Colodrero, Rosario Mercedes
; Olivera-Pastor, Pascual; Losilla, Enrique R.; García-Aranda, Miguel Ángel; León-Reina, Laura; Papadaki, M.; McKinlay, Alistair C.; Morris, Russell E.; Demadis, Konstantinos D.; Cabeza-Díaz, Aurelio[et al.] (The Royal Society of Chemistry, 2012)
A new flexible ultramicroporous solid, La(H5DTMP)·7H2O (1), has been crystallized at room temperature using the tetraphosphonic acid H8DTMP, hexamethylenediamine-N,N,N′,N′-tetrakis(methylenephosphonic acid). Its crystal ... -
Multifunctional Luminescent and Proton-Conducting Lanthanide Carboxyphosphonate Open-Framework Hybrids Exhibiting Crystalline-to-Amorphous-to-Crystalline Transformations
Pérez-Colodrero, Rosario Mercedes; Papathanasiou, Konstantinos E.; Stavgianoudaki, Nikoleta; Olivera-Pastor, Pascual; Losilla, Enrique R.; García-Aranda, Miguel Ángel; León-Reina, Laura; Sanz, Jesús; Sobrados, Isabel; Choquesillo-Lazarte, Duane; García-Ruíz, Juan M.; Atienzar, Pedro; Rey, Fernando; Demadis, Konstantinos D.; Cabeza-Díaz, Aurelio[et al.] (American Chemical Society, 2012-09-15)
The chemistry of metal phosphonates has been progressing fast with the addition of new materials that possess novel structural features and new properties, occasionally in a cooperative manner. In this paper, we report a ... -
New Multifunctional Lanthanide and Zr(IV) Phosphonates Derived from the 5-(dihydroxyphosphoryl) Isophthalate Ligand as Proton Conductors
Salcedo, Inés R.; Pérez-Colodrero, Rosario Mercedes; Olivera-Pastor, Pascual; Losilla, Enrique R.; Zon, Jerzy; Zareba, Jan K.; Costantino, Ferdinando; Cabeza-Díaz, Aurelio; Bazaga-García, Montse[et al.] (2019-06-06)
Metal phosphonates are essentially acidic solids featured by groups such as P-OH, -COOH, etc. Moreover, the presence of coordination and lattice water molecules favors the formation of H-bond networks, which make these ... -
Proton conductivity and luminiscence properties of lanthanide aminotriphosphonates
Bazaga-García, Montse; Angeli, Giasemi K.; Papathanasiou, Konstantinos E.; Salcedo, Inés R.; Olivera-Pastor, Pascual; Losilla, Enrique R.; Choquesillo-Lazarte, Duane; Hix, Gary B.; Cabeza-Díaz, Aurelio; Demadis, Konstantinos D.[et al.] (2016)
Metal phosphonates are multifunctional solids with tunable properties, such as internal H-bond networks, and high chemical and thermal stability [1]. In the present work, we describe the synthesis, structural characterization, ... -
Proton conductivity of lanthanide nitrilotris-methylphosphonates
Salcedo, Inés R.; Bazaga-García, Montse; Pérez-Colodrero, Rosario Mercedes; Olivera-Pastor, Pascual; Losilla, Enrique R.; Cabeza-Díaz, Aurelio[et al.] (2017-07-10)
Multifunctional metal phosphonates are acidic coordination polymers (CPs) with remarkable stability and proton conducting properties owing to their structure is usually composed of extended hydrogen-bond networks that favor ... -
Proton conductivity of multifunctional metal phosphonate frameworks
Cabeza-Díaz, Aurelio; Bazaga-García, Montse; Pérez-Colodrero, Rosario Mercedes; Papadaki, M.; Olivera-Pastor, Pascual; Losilla, Enrique R.; León-Reina, Laura; Moreno-Real, Laureano; García-Aranda, Miguel Ángel; Demadis, Konstantinos D.[et al.] (2015-03-23)
Metal phosphonates exhibit attractive characteristics for proton conductivity, such as tunable functionality, chemical and thermal stability and the existence of H-bond networks with acidic protons within their structure.1 In ... -
Proton Conductors based on Metal Phosphonate Hybrid Materials for PEM Fuel Cells
Cabeza-Díaz, Aurelio; Pérez-Colodrero, Rosario Mercedes; Bazaga-García, Montse; Hernández Alonso, Daniel; Compaña Prieto, José Manuel; Olivera-Pastor, Pascual; Losilla, Enrique R.; García-Aranda, Miguel Ángel; León-Reina, Laura[et al.] (2014-06-25)
The necessity of energy and power generation is constantly growing. Fossils fuels are quickly becoming unsatisfactory substrates due to both their emission of pollutants and their finite expectancy. Fuel cells are one of ... -
Reactive belite stabilization mechanisms by boron-bearing dopants
Cuesta-García, Ana María; Losilla, Enrique R.; García-Aranda, Miguel Ángel; Sanz, Jesús; Gómez-de-la-Torre, María de los Ángeles (Elselvier, 2012-01-27)
Belite-rich cements hold promise for reduced energy consumption and CO2 emissions, but their use is hindered by the slow hydration rates of ordinary belites. This drawback may be overcome by activation of belite by doping. ... -
Relationship between the Structure and Transport Properties in the Ce1−xLaxO2−x/2 System
Zamudio-García, Javier; Porras-Vázquez, José Manuel; Canales-Vázquez, J.; Cabeza-Díaz, Aurelio; Losilla, Enrique R.; Marrero-López, David[et al.] (American Chemical Society, 2019-06-25)
La-doped CeO2 materials have been widely investigated for potential applications in different high-temperature electrochemical devices, such as fuel cells and ceramic membranes for hydrogen production. However, the crystal ... -
Single and solid solutions metal carboxyphosphonates as precursors for phosphorous-containing electrocatalysts
López Vergara, Adrián; El-Refaei, S.M.; Russo, Patricia A.; Vilchez, A; Losilla, Enrique R.; Porras-Vázquez, José Manuel; Olivera-Pastor, Pascual; Pinna, N; Cabeza-Díaz, Aurelio[et al.] (2019-07-19)
Co1-xFex-HPAA metal phosphonates were prepared and pyrolyzed under N2 and H2/Ar flows. The result-ing powders were structural and electrochemically characterised by XRD and CV, respectively. The ob-tained materials possess ... -
Stability and electrochemical performance of nanostructured La2CuO4þd cathodes
Dos-Santos-Gómez, Lucía; Porras-Vázquez, José Manuel; Hurtado, Javier; Losilla, Enrique R.; Marrero-López, David (Elsevier, 2019-02-21)
La2CuO4þd cathode layers are prepared by spray-pyrolysis deposition and their structural, microstructural and electrical properties are compared with those of submicrometric powders obtained from freeze-dried precursors. ... -
Stability of epitaxial heterostructured materials
Dos-Santos-Gómez, Lucía; Sanna, Simone; Esposito, Vincenzo; Pryds, Nini; Marrero-López, David; Losilla, Enrique R.[et al.] (2019)
Heterostructured materials are a new family of artificial compounds where the electronic and ionic properties can be modulated by varying the characteristics of the different material layers. These properties arise from ... -
Structural analysis and sintering aids effects in La2Ce2O7 proton conductors
Zamudio-García, Javier; Porras-Vázquez, José Manuel; Losilla, Enrique R.; Marrero-López, David (2018-11-15)
Global warming is an important problem that has to be solved without delay. The development of environmental-friendly energy technology is needed to deal with this issue. Solid Oxide Fuel Cells (SOFC) technology has been ... -
Structural study of the local order in ammonia-modulated FE(II) hydroxyphosphonoacetate proton conductors
Bazaga-García, Montse; Cabeza-Díaz, Aurelio; Pérez-Colodrero, Rosario Mercedes; Salcedo, Inés R.; Olivera-Pastor, Pascual; Losilla, Enrique R.[et al.] (2017-10-17)
Layered Fe(II) carboxiphosphonate, Fe-HPAA·2H2O, is a crystalline multifunctional coordination polymer exhibiting properties as photocatalyst and proton conductor. Postsynthesis modification by ammonia/water adsorption ... -
Structural Variability in Multifunctional Metal Xylenediaminetetraphosphonate Hybrids
Pérez-Colodrero, Rosario Mercedes; Bazaga-García, Montse; Olivera-Pastor, Pascual; Losilla, Enrique R.; Martos, E.Q.; García-Aranda, Miguel Ángel; Cabeza-Díaz, Aurelio[et al.] (2013)
The two cornerstones in the field of MOFs are the Secondary Building Units (SBU’s or “bricks”) and the organic linkers. The structural tunability of crystalline MOFs coupled, when possible, with high chemical and thermal ... -
Structural Variability in Multifunctional Metal Xylenediaminetetraphosphonate Hybrids
Pérez-Colodrero, Rosario Mercedes; Angeli, Giasemi K.; Bazaga-García, Montse; Olivera-Pastor, Pascual; Villemin, Didier; Losilla, Enrique R.; Martos, Estefanía Q.; Hix, Gary B.; García-Aranda, Miguel Ángel; Demadis, Konstantinos D.; Cabeza-Díaz, Aurelio[et al.] (American Chemical Society, 2013-07-24)
Two new families of divalent metal hybrid derivatives from the aromatic tetraphosphonic acids 1,4- and 1,3-bis(aminomethyl)benzene-N,N′-bis(methylenephosphonic acid), (H2O3PCH2)2−N−CH2C6H4CH2−N(CH2PO3H2)2 (designated herein ... -
Structure, Atomistic Simulations, and Phase Transition of Stoichiometric Yeelimite
Cuesta-García, Ana María; Gómez-de-la-Torre, María de los Ángeles; Losilla, Enrique R.; Peterson, Vanessa K.; Rejmak, Pawel; Ayuela, Andrés; Frontera, Carlos; García-Aranda, Miguel Ángel[et al.] (ACS publications, 2013)
ABSTRACT: Yeelimite, Ca4[Al6O12]SO4, is outstanding as an aluminate sodalite, being the framework of these type of materials flexible and dependent on ion sizes and anion ordering/disordering. On the other hand, yeelimite ... -
Symmetrical solid oxide fuel cells based on titanate nanocomposite electrodes
Zamudio-García, Javier; Dos-Santos-Gómez, Lucía; Porras-Vázquez, José Manuel; Losilla, Enrique R.; Marrero-López, David (Elsevier, 2022-11-26)
Nanocomposite electrodes of (Sr0.7Pr0.3)0.95TiO3±δ−Ce0.9Gd0.1O1.95 are directly prepared by spray-pyrolysis deposition on Zr0.82Y0.16O1.92 electrolytes and their properties are compared with those obtained by the traditional ... -
Synthesis and characterization of M(II) phosphonates (M = Fe, Co, Zn, Mn) as precursors for PEMFCs electrocatalysts
López Vergara, Adrián; Salcedo, Inés R.; Bazaga-García, Montse; Olivera-Pastor, Pascual; Cabeza-Díaz, Aurelio; Losilla, Enrique R.; Porras-Vázquez, José Manuel[et al.] (2018-11-15)
Metal phosphonates are promising precursors for applications such as proton conductivity [1] and catalysis [2]. Specifically, upon calcination metal polyphosphates are generated that can be used as non-noble metal alternatives ... -
Synthesis and proton conduction properties of lanthanide amino-sulfophosphonates
Cabeza-Díaz, Aurelio; Bazaga-García, Montse; Pérez-Colodrero, Rosario Mercedes; Salcedo, Inés R.; Villemin, Didier; Olivera-Pastor, Pascual; Losilla, Enrique R.[et al.] (2016)
Crystalline acid-functionalized metal phosphonates are potential candidates as proton conducting electrolytes. Their frameworks can be chemically modified to contain proton carriers such as acidic groups (P-OH; -SO3H, ...