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Mostrando ítems 21-40 de 75
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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 ... -
New directions in metal phosphonate and fhosphinate chemistry
Shearan, Stephen J.I.; Stock, Norbert; Emmerling, Franziska; Demel, Jan; Wright, Paul A.; [et al.] (MDPI www.mdpi.com/journal/crystals, 2019-05-24)In September 2018, the First EuropeanWorkshop on Metal Phosphonates Chemistry brought together some prominent researchers in the field of metal phosphonates and phosphinates with the aim of discussing past and current ... -
New multifuncional divalent metal-coordinated sulfophosphonates: structures and proton conductivities
Bazaga-García, Montse; Pérez Colodrero, Rosario M.; Salcedo, Inés R.; Olivera-Pastor, Pascual; Cabeza-Diaz, Aurelio; [et al.] (2021-01-29)Metal phosphonate-based coordination polymers are structurally versatile multifunctional compounds that may contain a number of acidic groups such as P-OH; SO3H, COOH, N+-H…These features result in formation of extended ... -
New Multifunctional Lanthanide and Zr(IV) Phosphonates Derived from the 5-(dihydroxyphosphoryl) Isophthalate Ligand as Proton Conductors
Salcedo, Inés R.; Pérez Colodrero, Rosario M.; Olivera-Pastor, Pascual; Losilla, Enrique R.; Zon, Jerzy; [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 ... -
New multifunctional sulfonato-containing metal phosphonates proton conductors
Salcedo, Inés R.; Bazaga-García, Montse; Pérez Colodrero, Rosario M.; Xanthopoulos, Konstantinos; Demadis, Konstantinos D.; [et al.] (2018-10-01)Anchoring of acidic functional groups to organic linkers acting as ligands in metal phosphonates has been demonstrate to be a valid strategy to develop new proton conductor materials, which exhibit tunable properties and ... -
New Multifunctional Zirconium(IV) Phosphonates Derivativesas Proton Conductors and Catalysts
Vílchez-Cózar, Álvaro; Olivera-Pastor, Pascual; Zareba, Jan K.; Bazaga-García, Montse; Perez-Colodrero, Rosario Mercedes; [et al.] (2023)Coordination polymers based in phosphonic acid display a wide range of metalcoordination modes. Moreover, the existence of acidic P-OH groups in their structure, as well as of others functionalized organic group such as ... -
NH3/H2O-mediated proton conductivity and photocatalytic behaviour of Fe(II)-hydroxyphosphonoacetate and M(II)-substituted derivatives
Salcedo, Inés R.; Bazaga-García, Montse; Cuesta-Garcia, Ana Maria; Ramirez-Losilla, Enrique; Demadis, Konstantinos D.; [et al.] (The Royal Society of Chemistry, 2019-12-27)Synthesis redesign and derivatisation of Fe(II)-hydroxyphosphonoacetate, incorporating different ammonia loads and M(II) isomorphic substitutions (M = Mn, Co and Zn), have been implemented. The NH3 adsorption led to materials ... -
La odisea de medir PDF con un difractómetro “convencional”
Quintero Martos, Estefanía; Ruiz Salcedo, Inés; León-Reina, Laura; Cabeza-Diaz, Aurelio (2022)En esta ponencia se presenta la puesta a punto del difractómetro D8 Advance (Bruker S.L.) para la adquisición de datos de laboratorio de PDF (Pair Distribution Function) junto con los resultados obtenidos. -
Phase Composition and Transport Properties of oxide ion conductors based on Sr1-xKxGeO3-x/2
Dos Santos-Gómez, Lucía; Porras-Vázquez, José Manuel; Fernández-Palacios, Sara; Compaña Prieto, José Manuel; Cabeza-Diaz, Aurelio (2015-07-13)Oxide ion conductors have been increasingly studied because of their potential applications in different electrochemical devices, such as, oxygen sensors, membranes for oxygen separation and components of fuel cells. Solid ... -
Phase Transformation Dynamics in Sulfate-Loaded Lanthanide Triphosphonates. Proton Conductivity and Application as Fillers in PEMFCs
Salcedo, Inés R.; Pérez Colodrero, Rosario M.; Bazaga-García, Montse; López González, María del Mar; del Río, Carmen; [et al.] (ACS Publications. American Chemical Society, 2021)Phase transformation dynamics and proton conduction properties are reported for cationic layer-featured coordination polymers derived from the combination of lanthanide ions (Ln3+) with nitrilo-tris(methylenephosphonic ... -
Phosphonate Decomposition-Induced Polyoxomolybdate Dumbbell-Type Cluster Formation: Structural Analysis, Proton Conduction, and Catalytic Sulfoxide Reduction
Armakola, Eirini; Salcedo, Inés R.; Bazaga-García, Montse; Mezei, Gellert; Cabeza-Diaz, Aurelio; [et al.] (ACS publications, 2019-08-12)The reaction of MoO4^2− with a number of phosphonic acids [bis-(phosphonomethyl)glycine, R,S-hydroxyphosphonoacetic acid, 1-hydroxyethane-1,1-diphosphonic acid, phenylphosphonic acid, aminotris(methylene phosphonic acid), ... -
Photodegradation of Phenol over a Hybrid Organo-Inorganic Material: Iron(II) Hydroxyphosphonoacetate
Bazaga-García, Montse; Cabeza-Diaz, Aurelio; Olivera-Pastor, Pascual; Santacruz-Cruz, Maria Isabel; Perez-Colodrero, Rosario Mercedes; [et al.] (American Chemical Society, 2012-06-20)Water treatment is a hot topic, and it will become much more important in the decades ahead. Advanced oxidation processes are being increasingly used for organic contaminant removal, for example using photo-Fenton reactions. ... -
Preparation and characterization of phosphorus-containing electrocatalyst for OER, HER and ORR.
Vílchez-Cózar, Álvaro; Bazaga-García, Montse; Olivera-Pastor, Pascual; Cabeza-Diaz, Aurelio; Pérez Colodredo, Rosario M. (2022-11)Phosphorus-based materials, such as transition metal phosphides and phosphates/pyrophosphates, have drawn considerable attention as promising alternatives to noble metal-based catalysts (Pt, Ru, Ir) owing to their widely ... -
Preparation of N-doped Carbon/Metal Phosphides as Promising Trifunctional Electrocatalysts Toward the OER, ORR and HER
Vílchez-Cózar, Álvaro; Bazaga García, Montse; Marrero-López, David; Olivera Pastor, Pascual; Demadis, Konstantinos D.; [et al.] (2022-07-27)Sustainable energy storage and conversion technologies, such as electrochemical water splitting and fuel cells, attracts increasing attention as alternative processes to advance toward a global decarbonation. However, the ... -
Processing and characterisation of Calcium SulfoAluminate (CSA) eco-cements coated with a hybrid organo-inorganic material for photocatalytic applications
Morales-Cantero, Alejandro; Cabeza-Diaz, Aurelio; Gomez-de-la-Torre, Maria de los Angeles; García-Aranda, Miguel Ángel; Santacruz-Cruz, Maria Isabel (2015-07-27)On the one hand, Calcium SulfoAluminate (CSA) eco-cements are receiving increasing attention since their manufacture produces up to 40% less CO2 than ordinary Portland cement (OPC). In addition, they show interesting ... -
Properties and Applications of Metal Phosphates and Pyrophosphates as Proton Conductors
P. Colodrero, Rosario M.; Olivera-Pastor, Pascual; Cabeza-Diaz, Aurelio; Bazaga-García, Montse (MDPI, 2022-02-09)We review the progress in metal phosphate structural chemistry focused on proton conductivity properties and applications. Attention is paid to structure–property relationships, which ultimately determine the potential ... -
Proton Conduction Properties of Metal phosphonates and Application as Fillers in PEMFCs
Bazaga-García, Montse; Cabeza-Diaz, Aurelio; Rosario M. P. Colodrero; Inés R. Salcedo; Álvaro Vílchez-Cózar; [et al.] (2022-07)Metal phosphonate (MP)-based coordination polymers (CPs) are structurally versatile multifunctional compounds containing different acidic groups such as P-OH; SO3H, COOH, N+-H, etc. These features result in the formation ...