Listar QICM - Contribuciones a congresos científicos por autor "Ramírez-Losilla, Enrique"
Mostrando ítems 1-19 de 19
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Applications of N,N-bis(phosphonomethyl)glycine-derived Sn4+ or Co2+ phosphonates as proton conductors or energy-conversion electrocatalysts.
Cañamero-Cebrián, Fernando; Pérez-Colodrero, Rosario Mercedes
; Vílchez-Cózar, Álvaro; Bazaga-García, Montse; Ramírez-Losilla, Enrique; Olivera-Pastor, Pascual; Cabeza-Díaz, Aurelio[et al.] (2023)
Metal phosphonates (MPs), a subclass of coordination polymers, may exhibit acidic groups such as POH, SO3H, COOH, N+-H, etc. Combining these features with electrocatalytically active transition metals, make them highly ... -
Ce0.8Gd0.2O2‐δ / La0.6Sr0.4CoO3 Heterostructures prepared by pulsed laser deposition
Dos-Santos-Gómez, Lucía; Porras-Vázquez, José Manuel; Ramírez-Losilla, Enrique; Marrero-López, David (2018-09-14)
Oxide interfaces have received greater attention due to the possibility to obtain properties that are very different from bulk materials. Due to the wide variety of electronic and ionic phenomena than can be detected at ... -
Compatibility and performance of SOFCs based on lanthanum tungstates
Dos-Santos-Gómez, Lucía; Porras-Vázquez, José Manuel; Zayas-Rey, María José; Ramírez-Losilla, Enrique; Marrero-López, David (2015-07-10)
Rare-earth tungstates with general composition “Ln6WO12” have attracted great attention in last few years due to their relatively high mixed proton-electron conductivity [1, 2]. One of the main ad-vantages of these ... -
High efficiency cathodes for SOFCs prepared by spray-pyrolysis
Dos-Santos-Gómez, Lucía; Ramírez-Losilla, Enrique; Marrero-López, David (2015-07-10)
In recent years, lowering the operating temper-ature of the Solid Oxide Fuel Cells (SOFCs) to the intermediate temperature range (500-700 ºC) has become the main challenge for this technology. The electrolyte resistance ... -
Influence of Nb-doping on the structural and electrical properties of lanthanum molybdates, La5.4MoO11.1
López Vergara, Adrián; Porras-Vázquez, José Manuel; Vollestad, Einar; Canales-Vázquez, J.; Ramírez-Losilla, Enrique; Marrero-López, David[et al.] (2018-06-28)
Nowadays, hydrogen is receiving a great deal of attention as an energy carrier. Commonly, it is obtained by hydrocarbons reforming, such as natural gas, coal and biomass. However, the resulting hydrogen needs to be purified ... -
Nanocrystalline cathodes for PC-SOFCs based on BCZY
Dos-Santos-Gómez, Lucía; Zea-Garcia, Jesus D.; Porras-Vázquez, José Manuel; Marrero-López, David; Ramírez-Losilla, Enrique (2016-09-27)
Perovskites based on BaCeO3-δ exhibit the highest proton conductivity among this class of materials, however, they are susceptible to hydration and carbonation in presence of water vapor and CO2 [1]. In contrast, the ... -
New multifunctional sulfonato-containing metal phosphonates proton conductors
Salcedo, Inés R.; Bazaga-García, Montse; Pérez-Colodrero, Rosario Mercedes; Xanthopoulos, Konstantinos; Demadis, Konstantinos D.; Stock, Norbert; Cabeza-Díaz, Aurelio; Ramírez-Losilla, Enrique; Olivera-Pastor, Pascual[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 ... -
Novel microstructural strategies to enhance the electrochemical performance of La0.8Sr0.2MnO3-δ cathodes
Dos-Santos-Gómez, Lucía; Porras-Vázquez, José Manuel; Ramírez-Losilla, Enrique; Marrero-López, David (2015-07-13)
Solid oxide fuel cells (SOFCs) are one of the most efficient technologies for direct conversion of fuels to electricity. La0.8Sr0.2MnO3-δ (LSM) is the cathode material most widely used in SOFCs [1], however, LSM exhibits ... -
One step synthesis of nanocomposite electrodes for reversible electrochemical cells.
Dos-Santos-Gómez, Lucía; Zamudio-García, Javier; Caizán-Juanarena, Leire; Porras-Vázquez, José Manuel; Ramírez-Losilla, Enrique; Marrero-López, David[et al.] (2023)
The irregular and seasonal disposition of renewable energy requires advanced devices for energy storage and conversion. Reversible electrochemical cells can address this approach by operating as both electrolyzer and fuel ... -
Proton Conductivity in Sulfate-Containing Lanthanide Nitrilotris-methylphosphonates
Salcedo, Inés R.; Cabeza-Díaz, Aurelio; Bazaga-García, Montse; Pérez-Colodrero, Rosario Mercedes; Choquesillo-Lazarte, Duane; Hix, Gary B.; Ramírez-Losilla, Enrique; Olivera-Pastor, Pascual[et al.] (2019-09-12)
Multifunctional metal phosphonates are coordination polymers (CPs) whose structures are usually composed of extended hydrogen-bond networks and thus making them potential candidates as proton conductors [1]. Moreover, these ... -
Proton conductivity properties of novel tin(II) phosphonates
Cañamero-Cebrián, Fernando; Cabeza-Díaz, Aurelio; Vílchez-Cózar, Álvaro; Bazaga-García, Montse; Ramírez-Losilla, Enrique; Olivera-Pastor, Pascual; Pérez-Colodrero, Rosario Mercedes[et al.] (2024-01-16)
Metal phosphonates (MPs), a subclass of coordination polymers, may exhibit acidic groups such as P-OH, SO3H, COOH, N+-H, etc. Combining these features with interesting metals make them highly appealing in the field of fuel ... -
Sm0.5Sr0.5CoO3-δ - Ce0.9Sm0.1O1.95 nanocomposites for reversible electrochemical cells.
Dos-Santos-Gómez, Lucía; Zamudio-García, Javier; Caizán-Juanarena, Leire; Porras-Vázquez, José Manuel; Ramírez-Losilla, Enrique; Marrero-López, David[et al.] (2023)
The generation of electricity through environmentally friendly sources of energy has been one of the main challenges of our society in the last decades. Nevertheless, the irregular and seasonal disposition of renewable ... -
Solid Oxide Fuel Cells based on Lanthanum Tungstates Electrolytes
Porras-Vázquez, José Manuel; Zayas-Rey, María José; Ramírez-Losilla, Enrique; Marrero-López, David; Dos-Santos-Gómez, Lucía (2015-07-13)
Lanthanum tungstate with composition La27W4NbO55- (LWNO) has been tested as proton conductor electrolyte for Solid Oxide Fuel Cells (SOFCs). For this purpose, different electrodes and composite electrodes are considered, ... -
Structure-properties correlations in divalent metal phosphonates
Pérez-Colodrero, Rosario Mercedes; Bazaga-García, Montse; Olivera-Pastor, Pascual; Ramírez-Losilla, Enrique; Salcedo, Inés R.; García-Aranda, Miguel Ángel; Cabeza-Díaz, Aurelio[et al.] (2016)
Crystalline metal phosphonates may offer acidic sites, structural flexibility and guest molecules (H2O, heterocyclics, etc.) which can act as proton carriers. In addition, some frameworks are also amenable for post‐synthesis ... -
Study of mixed molybdates of lanthanum and praseodymium, La5.4-xPrxMo1-yNbyO12-δ, for H2 separation membranes
Sánchez Caballero, Abraham; Porras-Vázquez, José Manuel; Dos-Santos-Gómez, Lucía; Zamudio-García, Javier; Infantes-Molina, Antonia; Marrero-López, David; Ramírez-Losilla, Enrique[et al.] (2024-01)
This research explores the impact of praseodymium and niobium doping on the La5.4-xPrxMo1-yNbyO12- _series (x= 1.35, 2.7, 4.05, 5.4; y= 0, 0.1) as materials with mixed proton-ionic conductivity suitable for hydrogen ... -
Study of mixed Pr/La molybdates, La5.4-xPrxMo1-yNbyO12-δ, for hydrogen separation membranes.
Sánchez Caballero, Abraham; Porras-Vázquez, José Manuel; Dos-Santos-Gómez, Lucía; Zamudio-García, Javier; Infantes-Molina, Antonia; Marrero-López, David; Ramírez-Losilla, Enrique[et al.] (2023)
Lanthanide molybdates, with general formula Ln5.4MoO11.1-, are materials with mixed proton-ionic conductivity that can be used as hydrogen separation membranes. Their symmetry (cubic or rhombohedral) depends on the synthetic ... -
Synthesis and proton conduction properties of lanthanide amino-sulfophosphonates
Salcedo, Inés R.; Quintero, Estefanía; Bazaga-García, Montse; Pérez-Colodrero, Rosario Mercedes; Olivera-Pastor, Pascual; Ramírez-Losilla, Enrique; Cabeza-Díaz, Aurelio[et al.] (2018-06-28)
Acidic groups-containing metal phosphonates exhibit a wide range of proton conductivity depending on the water content and functionality. Moreover, this property can be enhanced by appropriate post-synthesis chemical ... -
Tunable crystal structure and proton conductivity of lanthanide nitrilotrismethylphosphonates
Salcedo, Inés R.; Pérez-Colodrero, Rosario Mercedes; Hix, Gary B.; Cabeza-Díaz, Aurelio; Bazaga-García, Montse; Ramírez-Losilla, Enrique; Olivera-Pastor, Pascual[et al.] (2018-10-01)
Metal phosphonates are multifunctional solids with remarkable stability and proton conducting properties owing to their structure is usually composed of extended hydrogen-bond networks that favor proton transfer pathways ...