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Listar por autor "Olivera-Pastor, Pascual"
Mostrando ítems 1-20 de 56
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Ammonia effects on proton conductivity properties of coordination polymers
Pérez Colodrero, Rosario M.; Salcedo, Inés R.; Bazaga-García, Montse; Olivera-Pastor, Pascual; Moreno-Real, Laureano; [et al.] (2016-09-22)Crystalline metal phosphonates are referred to as a type of structurally versatile coordination polymers [1]. Many of them contain guest molecules (H2O, heterocyclics, etc.), acidic sites and, furthermore, their structure ... -
“Breathing” in Adsorbate-Responsive Metal Tetraphosphonate Hybrid Materials
Pérez Colodrero, Rosario M.; Cabeza-Diaz, Aurelio; Olivera-Pastor, Pascual; Infantes-Molina, Antonia; Barouda, Eleni; [et al.] (Wiley-VCH Verlag GmbH&Co. KGaA, Weinheim, 2009-05-28)The structures of various layered calcium tetraphosphonates (CaH6DTMP; H8DTMP=hexamethyl- tetrakis(methylenephosphonic acid)), have been determined. Starting from CaH6DTMP·2H2O, thermal treatment and subsequent exposure ... -
Cobalt phosphinates as precursors of cobalt phosphide electrocatalysts
Vílchez-Cózar, Álvaro; Cabeza, Aurelio; Bazaga-García, Montse; Visa, Aurelia; Ilia, Gheorghe; [et al.] (2022-02-03)The scarcity and high cost of Pt and Ru/Ir-based noble metal electrocatalysts forces to design alternative low-cost and efficient materials for sustainable energy storage and conversion technologies. Among them, ... -
Common Structural Features in Calcium Hydroxyphosphonoacetates. A High-Throughput Screening
Pérez Colodrero, Rosario M.; Cabeza-Diaz, Aurelio; Olivera-Pastor, Pascual; Papadaki, M.; Rius, Jordi; [et al.] (2011-03-11)R,S-Hydroxyphosphonoacetic acid (H3HPA) is an inexpensive multidentate organic ligand widely used for the preparation of organo-inorganic hybrid materials. There are reports of several crystal structures and the variability ... -
Composición, morfología y biocompatibilidad de cementos dentales de fosfato de zinc modificados con aditivos de calcio
Arjona Pulido, Fátima (2018-03-22)Se han preparado y caracterizado biomateriales dentales basados en fosfato de zinc, con el propósito de estudiar los efectos de varios aditivos de calcio en su composición, morfología y bioactividad. Un primer estudio ... -
Divalent Metal Vinylphosphonate Layered Materials: Compositional Variability, Structural Peculiarities, Dehydration Behavior, and Photoluminescent Properties
Pérez Colodrero, Rosario M.; Cabeza-Diaz, Aurelio; Olivera-Pastor, Pascual; Choquesillo-Lazarte, Duane; García-Ruíz, Juan M.; [et al.] (American Chemical Society, 2011-09-27)A family of M-VP (M = Ni, Co, Cd, Mn, Zn, Fe, Cu, Pb; VP = vinylphosphonate) and M-PVP (M = Co, Cd; PVP = phenylvinylphosphonate) materials have been synthesized by hydrothermal methods and characterized by FTIR, elemental ... -
Electrochemical and photochemical applications of multifunctional metal phosphonates
Salcedo, Inés R. (UMA Editorial, 2021-02-09)In this PhD thesis, proton conductivity, photocatalytic and luminescence properties of synthesised multifunctional metal phosphonates have been studied. Iron and zinc derivatives of the R,S hydroxyphosphonoacetic acid ... -
Exploiting the Multifunctionality of M2+/Imidazole−Etidronates for Proton Conductivity (Zn2+) and Electrocatalysis (Co2+, Ni2+) toward the HER, OER, and ORR
Vílchez-Cózar, Álvaro; Armakola, Eirini; Gjika, Maria; Visa, Aurelia; Bazaga-García, Montse; [et al.] (American Chemical Society, 2022-02-22)This work deals with the synthesis and characterization of one-dimensional (1D) imidazole-containing etidronates, [M2(ETID)(Im)3]·nH2O (M = Co2+ and Ni2+; n = 0, 1, 3) and Zn2(ETID)2(H2O)2](Im)2, as well as the corresponding ... -
From light to heavy alkali metal tetraphosphonates (M = Li, Na, K, Rb, Cs): cation size-induced structural diversity and waterfacilitated proton conductivity
Salcedo, Inés R.; Pérez Colodrero, Rosario M.; Bazaga-García, Montse; Vasileiou, Antonia; Papadaki, Maria; [et al.] (The Royal Society of Chemistry, 2018-09)A family of alkali metal-based frameworks containing the tetraphosphonate ligand hexamethylenediamine- N,N,N′,N′-tetrakisIJmethylenephosphonic acid), HDTMP, is reported. A cation size-induced structural diversity, from ... -
Guest Molecule-Responsive Functional Calcium Phosphonate Frameworks for Tuned Proton Conductivity
Bazaga-García, Montse; Pérez Colodrero, Rosario M.; Papadaki, M.; Garczarek, Piotr; Zon, Jerzy; [et al.] (American Chemical Society, 2014-03-18)We report the synthesis, structural characterization, and functionality of an open-framework hybrid that combines Ca2+ ions and the rigid polyfunctional ligand 5-(dihydroxyphosphoryl) isophthalic acid (PiPhtA). Ca-PiPhtA-I ... -
High Proton Conductivity in a Flexible, Cross-Linked, Ultramicroporous Magnesium Tetraphosphonate Hybrid Framework
Pérez Colodrero, Rosario M.; Olivera-Pastor, Pascual; Losilla, Enrique R.; Hernández Alonso, Daniel; G. Aranda, Miguel Ángel; [et al.] (American Chemical Society, 2012-07-03)Multifunctional materials, especially those combining two or more properties of interest, are attracting immense attention due to their potential applications. MOFs, metal organic frameworks, can be regarded as multifunctional ... -
High-Throughput Synthesis of Pillared-Layered Magnesium Tetraphosphonate Coordination Polymers: Framework Interconversions and Proton Conductivity Studies
Pérez Colodrero, Rosario M.; Salcedo, Inés R.; Bazaga-García, Montse; Barouda, Eleni; Papadaki, Maria; [et al.] (MDPI, www.mdpi.com/journal/inorganics, 2018-09-11)Novel pillared-layered framework materials were synthesized by high-throughput or microwave-assisted methodology that contain Mg2+ and the zwitterionic linker HDTMP (hexamethylenediamine-N,N,N0,N0-tetrakis(methylenephosphonic ... -
Imidazole-containing Co2+ and Ni2+ etidronates: crystal structures and electrochemical behaviour
Bazaga-García, Montse; Pérez Colodrero, Rosario M.; Vílchez-Cózar, Álvaro; Armakola, Eirini; Gjika, M.; [et al.] (2021)Metal phosphonates-based coordination polymers (CPs) are known to exhibit versatile structural diversity and functionality. Thus, they have been used, among other applications, as electrocatalyst precursors for both, PEMFCs ... -
In situ high pressure powder diffraction study of proton conductors based on metal phosphonates
Bazaga-García, Montse; Pérez Colodrero, Rosario M.; Olivera-Pastor, Pascual; Losilla, Enrique R.; Salcedo, Inés R.; [et al.] (2015-06-30)Soft Porous Metal Organic frameworks (MOFs) are referred to as a class of coordination polymers that exhibit structural flexibility in response to guest interactions or physical stimuli [1]. By combining softness and ... -
Layered Lanthanide Sulfophosphonates and Their Proton Conduction Properties in Membrane Electrode Assemblies
Bazaga-García, Montse; Salcedo, Inés R.; Pérez Colodrero, Rosario M.; Xanthopoulos, Konstantinos; Villemin, Didier; [et al.] (ACS publications, 2019-11-07)Metal phosphonates containing acidic groups exhibit a wide range of proton conduction properties, which may enhance the performance of membrane electrode assemblies (MEAs). In this work, focus is placed on proton conduction ... -
Luminescent and Proton Conducting Lanthanide Coordination Networks Based On a Zwitterionic Tripodal Triphosphonate
Bazaga-García, Montse; Angeli, Giasemi K.; Papathanasiou, Konstantinos E.; Salcedo, Inés R.; Olivera-Pastor, Pascual; [et al.] (American Chemical Society, 2016-07-14)The synthesis, structural characterization, luminescence properties, and proton conduction performance of a new family of isostructural cationic 2D layered compounds are reported. These have the general formula ... -
Metal carboxyphosphonates-based electrocatalysts
López-Vergara, Adrián; El-Refaei, S.M.; Russo, P.A.; Vilchez, A; Losilla, Enrique R.; [et al.] (2019-10-01)Co1-xFex-HPAA metal phosphonates were prepared and pyrolyzed under N2 and H2/Ar flows. The resulting powders were structural and electrochemically characterized by XRD and CV, respectively. The obtained materials possess ... -
Multifunctional lanthanum tetraphosphonates: Flexible, ultramicroporous and proton-conducting hybrid frameworks
Pérez Colodrero, Rosario M.; Olivera-Pastor, Pascual; Losilla, Enrique R.; G. Aranda, Miguel Ángel; León-Reina, Laura; [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 M.; Papathanasiou, Konstantinos E.; Stavgianoudaki, Nikoleta; Olivera-Pastor, Pascual; Losilla, Enrique R.; [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 ... -
Multifunctional metal phosphonate frameworks for proton conductivity and photocatalysis
Bazaga-García, Montse (Servicio de Publicaciones y Divulgación Científica, 2015)A lo largo de este trabajo de investigación han sido estudiadas las propiedades de conducción protónica, fotocatálisis y fotoluminiscencia de fosfonatos metálicos multifuncionales, preparados por incorporación de iones ...