Listar QICM - Contribuciones a congresos científicos por título
Mostrando ítems 150-169 de 216
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Role of Mo in catalysts based on noble metals in hydrodeoxygenation reactions
Ballesteros-Plata, Daniel; Infantes-Molina, Antonia
; Rodríguez-Aguado, Elena; Braos-García, María del Pilar; Rodríguez-Castellón, Enrique (2017-06-29)
The use of bio-energy as a renewable alternative to fossil fuels is nowadays attracting more and more attention. The bio-fuel from biomass seems to be a potential energy substitute for fossil fuels since it is a renewable ... -
The role of raw powder diffraction data in peer review; past, present and future
García-Aranda, Miguel Ángel (2019-09-05)
Scientific data in our community can be classified, in broad terms, in three large categories: raw, reduced and derived data. IUCr has been very active in promoting the sharing of reduced and derived data for decades in ... -
Ru supported on Mg/Al hydrotalcites for phenol hydrogenation.
Benmebirouk-Pareja, Nadia; Barroso-Martín, Isabel; Montaña, Maia; Ballesteros-Plata, Daniel; Cecilia-Buenestado, Juan Antonio; Infantes-Molina, Antonia; Rodríguez-Castellón, Enrique[et al.] (2023)
Cyclohexanone and cyclohexanol are high value-added products widely used in polymer and chemical industry as organic solvents in oil paints or varnishes [1] or as intermediates in nylon, oxalic acid, caprolactam and adipic ... -
Si-Al nanospheres for the valorization of galactose and agarose into 5-hydroxymethylfurfural.
Torres-Olea, Benjamín; Rodríguez Carballo, Gabriela; García-Sancho, Cristina; Moreno-Tost, Ramón; Cecilia-Buenestado, Juan Antonio; Maireles-Torres, Pedro Jesús[et al.] (2023)
5-hydroxymethylfurfural (HMF) is a compound that has gained attention to potentially substitute fossil resources in areas such as the polymer industry or the production of energy vectors. HMF is produced from the acid ... -
Sílices mesoporosas KIT-6 funcionalizadas como catalizadores ácidos para la deshidratación de sorbitol a isosorbida
La modificación de sílices mesoporosas mediante la incorporación de heteroátomos (Zr, Al, Ti, entre otros) y/o tratamiento con ácidos minerales es una estrategia atractiva en catálisis heterogénea para la preparación de ... -
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 ... -
Síntesis hidrotermal de tobelita rica en Mg
Bentabol-Manzanares, María José; Huertas, F. Javier (2018-07-10)
La tobelita ha sido descrita en ambientes de baja temperatura y sintetizada a diferentes temperaturas. Además de tobelita se han sintetizado los términos intermedios entre tobelita y moscovita, a partir de caolinita. En ... -
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, ... -
Solución sólida en micas sintetizadas hidrotermlamente a partir de caolinita a 400ºC
Bentabol-Manzanares, María José; Abad Martínez, Maria Isabel (2019-06-28)
La transformación de caolinita en mica dioctaédrica ha sido descrita y sintetizada en diferentes condiciones de temperatura, pH y ambientes químicos (Chermark y Rimstidt, 1990; Huang, 1993; Bauer et al., 1998; Bentabol ... -
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 Characterization of Transition-Metal Carboxyethanephosphonates as Precursors of Electrocatalysts
Sánchez Caballero, Abraham; Vílchez-Cózar, Álvaro; Cabeza-Díaz, Aurelio; Bazaga-García, Montse; Olivera-Pastor, Pascual; Pérez-Colodrero, Rosario Mercedes[et al.] (2023)
Phosphorus-containing coordination polymers (CPs) are considered as one of the most promising precursors of materials alternative to the highly expensive commercial catalysts (Pt, Ru and Ir) used in polymeric fuel cells ... -
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 ... -
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 ... -
Sulphated KIT6-Zr as an efficient solid acid catalyst for the production of isosorbide from sorbitol
In recent years, the development of new catalytic processes for the transformation of sugars is converting lignocellulosic biomass in a sustainable and renewable feedstock for the production of biofuels and high value-added ... -
Supported nickel nitride catalysts for the gas-phase hydrogenation of furfural
Jiménez-Gómez, Carmen Pilar; Cecilia-Buenestado, Juan Antonio; Defilippi, Chiara; Maireles-Torres, Pedro Jesús; Giordano, Cristina (2019-05-21)
A series of catalysts with different nickel loading (2.5-30 wt%) has been prepared by UGR. The preparation of Ni3N phase was ascertained via Powder X-rays diffraction together with cubic nickel . The elemental chemical ...