Listar por autor "Losilla, Enrique R."
Mostrando ítems 1-20 de 44
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Active layers based on vertically aligned nanostructures for SOFC applications
Zamudio-García, Javier; Chiabrera, Francesco; Losilla, Enrique R.; Marrero-López, David
; Pryds, Nini; Esposito, Vincenzo[et al.] (2022-06-28)
One of the most recent strategies to enhance the electrode performance is preparing composite materials leading to an increase of the triple-phase-boundary (TPB) length. In this work, thin films VANs based on ... -
Ajuste de las propiedades estructurales de molibdatos de lantano a través de la modificación de los entramados catiónicos y aniónicos
Porras-Vazquez, Jose Manuel; Bergillos-Ruíz, Marta; López-Vergara, Adrián; Marrero-López, David; Losilla, Enrique R. (2018-06-28)
Los materiales basados en molibdatos de lantano, con fórmula general La6-xMoO12-, son candidatos a membranas de separación de hidrógeno debido su conductividad electrónica y protónica. Estos cristalizan en diferentes ... -
Ammonia effects on proton conductivity properties of coordination polymers
Perez-Colodrero, Rosario Mercedes; Salcedo, Inés R.; Bazaga-García, Montse; Olivera-Pastor, Pascual; Moreno-Real, Laureano; Losilla, Enrique R.; Cabeza-Diaz, Aurelio[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 ... -
Boosting the Performance of La0.8Sr0.2MnO3-δ Electrodes by The Incorporation of Nanocomposite Active Layers
Zamudio-García, Javier; Caizán Juanarena, Leire; Porras-Vazquez, Jose Manuel; Losilla, Enrique R.; Marrero-López, David (Wiley, 2022-07-07)
The use of active layers is a promising strategy to improve the properties of air electrodes for solid oxide fuel cells (SOFCs). In this work, La0.8Sr0.2MnO3-δ is combined with different oxide ion conductors Ce0.9Gd0.1O1.95, ... -
Durability and performance of CGO barriers and LSCF cathode deposited by spray-pyrolysis
Dos Santos-Gómez, Lucía; Hurtado, Javier; Porras-Vazquez, Jose Manuel; Losilla, Enrique R.; Marrero-López, David (Elsevier, 2018-03-19)
Ce0.9Gd0.1O1.95 (CGO) protective layers are prepared by two different methods to prevent the reaction between the Zr0.84Y0.16O1.92 (YSZ) electrolyte and the La0.6Sr0.4Co0.2Fe0.8O3-δ (LSCF) cathode. In the first method, ... -
Effect of preparation conditions on the polymorphism and transport properties of lanthanum molybdates
Porras-Vazquez, Jose Manuel; López-Vergara, Adrián; Infantes-Molina, Antonia; Canales-Vázquez, J.; Cabeza-Diaz, Aurelio; Losilla, Enrique R.; Marrero-López, David[et al.] (2017-10-24)
In this work, La6MoO12-based compounds were investigated as part of a new family of materials very competitive as hydrogen separation membranes [1,2]. La5.4MoO11.1 was synthesized by the freeze-drying precursor method and ... -
Effect of the modification of the cationic and anionic framework on the structural and electrical properties of lanthanum molybdates
López-Vergara, Adrián; Bergillos-Ruíz, Marta; Porras-Vazquez, Jose Manuel; Marrero-López, David; Losilla, Enrique R. (2019-07-19)
Fluorinated lanthanum molybdates have been prepared at 1500 and 1200 ºC for 1 h and cooled down at 5 ºC min-1. The combination of anionic (F-) and cationic (Nb5+) doping stabilizes the cubic polymorph without needing a ... -
Effect of Zn addition on the structure and electrochemical properties of codoped BaCe0.6Zr0.2Ln0.2O3-δ (Ln=Y, Gd, Yb) proton conductors
Zamudio-García, Javier; Porras-Vazquez, Jose Manuel; Dos Santos-Gómez, Lucía; Losilla, Enrique R.; Marrero-López, David (Elsevier, 2018-05-02)
In this work, BaCe0.6Zr0.2Y0.2-xYbxO3-δ and BaCe0.6Zr0.2Gd0.2-xYbxO3-δ (x=0–0.20), proton conducting materials are prepared by the freeze-drying precursor method. The sintering conditions were optimized by adding ... -
Guest Molecule-Responsive Functional Calcium Phosphonate Frameworks for Tuned Proton Conductivity
Bazaga-García, Montse; Perez-Colodrero, Rosario Mercedes; Papadaki, M.; Garczarek, Piotr; Zon, Jerzy; Olivera-Pastor, Pascual; Losilla, Enrique R.; León-Reina, Laura; G. Aranda, Miguel Ángel; Choquesillo-Lazarte, Duane; Demadis, Konstantinos D.; Cabeza-Diaz, Aurelio[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
Perez-Colodrero, Rosario Mercedes; Olivera-Pastor, Pascual; Losilla, Enrique R.; Hernández Alonso, Daniel; G. Aranda, Miguel Ángel; León-Reina, Laura; Rius, Jordi; Demadis, Konstantinos D.; Moreau, Bernard; Villemin, Didier; Palomino, Miguel; Rey, Fernando; Cabeza-Diaz, Aurelio[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 ... -
Highly efficient La0.8Sr0.2MnO3-δ - Ce0.9Gd0.1O1.95 nanocomposite cathodes for solid oxide fuel cells
Dos Santos-Gómez, Lucía; Zamudio-García, Javier; Porras-Vazquez, Jose Manuel; Losilla, Enrique R.; Marrero-López, David (Elsevier, 2017-12-15)
La0.8Sr0.2MnO3-δ-Ce0.9Gd0.1O1.95 (LSM-CGO) nanostructured cathodes are successfully prepared in a single process by a chemical spray-pyrolysis deposition method. The cathode is composed of nanometric particles of approximately ... -
Highly efficient LaCr0.75M0.25O3+δ (M= Ti, Mn, Fe, Co and Cu) nanostructured electrodes for Solid Oxide Fuel Cells
Zamudio-García, Javier; Porras-Vazquez, Jose Manuel; Losilla, Enrique R.; Marrero-López, David (2019-09-30)
Nanostructured composites electrodes based on lanthanum chromites has been prepared using Spray-pyrolysis precursor method achieving better Rp as SOFC electrodes. The performance in real SOFC is still in progress. -
In situ high pressure powder diffraction study of proton conductors based on metal phosphonates
Bazaga-García, Montse; Perez-Colodrero, Rosario Mercedes; Olivera-Pastor, Pascual; Losilla, Enrique R.; Salcedo, Inés R.; Wright, P.A.; García-Aranda, Miguel Ángel; Cabeza-Diaz, Aurelio[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 ... -
Influence of lanthanum doping on the structure and transport properties of CeO2
Zamudio-García, Javier; Porras-Vazquez, Jose Manuel; Dos Santos-Gómez, Lucía; Losilla, Enrique R.; Marrero-López, David (2019-06-10)
LaxCe1-xO2-x/2 materials are oxide and/or proton conductors depending on the La-content and they are of interest for numerous electrochemical applications at high temperatures, including membranes for hydrogen separation ... -
Insights into the Dynamics of Grotthuss Mechanism in a Proton- Conducting Chiral bioMOF
Grancha, Thais; Ferrando-Soria, Jesús; Cano, Joan; Amorós, Pedro; Seoane, Beatriz; Gascón, Jorge; Bazaga-García, Montse; Losilla, Enrique R.; Cabeza-Diaz, Aurelio; Armentano, Donatella; Pardo, Emilio[et al.] (American Chemical Society, 2016-06-13)
Proton conduction in solids attracts great interest, not only because of possible applications in fuel cell technologies, but also because of the main role of this process in many biological mechanisms. Metal−organic frameworks ... -
LaCr0.75Mn0.25O3+δ –CGO nanocomposite electrodes for highly efficient Solid Oxide Fuel Cells
Zamudio-García, Javier; Porras-Vazquez, Jose Manuel; Losilla, Enrique R.; Marrero-López, David (2021-07-24)
One of the most recent strategies to enhance the electrode performance is the preparation of nanocomposite materials, leading to an increase of the triple-phase-boundary (TPB) length. In this way, ... -
Lanthanide molybdates, Ln5.4MoO11.1 (Ln = Nd, Sm and Gd), for hydrogen separation membranes
Porras-Vazquez, Jose Manuel; Zamudio-García, Javier; Marrero-López, David; Losilla, Enrique R. (Advanced Nano Materials, ANM2022, 2022-07-27)
Nowadays, lanthanide molybdates (Ln6-xMoO12-, Ln = La-Lu) are attracting attention as candidates for hydrogen separation membranes due to its high ambipolar proton-electron conductivity. In these compounds, a very high ... -
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; Losilla, Enrique R.; Choquesillo-Lazarte, Duane; Hix, Gary B.; Cabeza-Diaz, Aurelio; Demadis, Konstantinos D.[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 ... -
Mechanism of stabilization of dicalcium silicate solid solution with aluminium
Cuesta-Garcia, Ana Maria; García-Aranda, Miguel Ángel; Sanz, Jesús; Gomez-de-la-Torre, Maria de los Angeles; Losilla, Enrique R. (ELSEVIER, 2013-11-11)
Stoichiometric dicalcium silicate, Ca2SiO4, displays a well-known polymorphism with temperature. When this phase is doped by a range of elements, belite, one of the main phases of cements, is generated. Here, we thoroughly ... -
Metal carboxyphosphonates-based electrocatalysts
López-Vergara, Adrián; El-Refaei, S.M.; Russo, P.A.; Vilchez, A; Losilla, Enrique R.; Porras-Vazquez, Jose Manuel; Olivera-Pastor, Pascual; Pinna, N; Cabeza-Diaz, Aurelio[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 ...