Listar QICM - Contribuciones a congresos científicos por título
Mostrando ítems 92-111 de 209
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LaCr0.75Mn0.25O3+δ –CGO nanocomposite electrodes for highly efficient Solid Oxide Fuel Cells
(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
(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 ... -
Learning strategies for the acquisition of specific skills, and its evaluation through an integrated rubric in several degrees of University of Malaga (Spain).
(2015-07-28)It is essential for the university lecturers/professors to design new strategies that help students to acquire skills in the new framework of the European Higher Education Area. Furthermore, the assessment of the effectiveness ... -
Magnetitas utilizadas para la obtención de alcohol furfurílico a partir de furfural mediante transferencia catalítica de hidrógeno
(2018-07-16)El furfural es considerado como una molécula plataforma debido a su alta reactividad en procesos de hidrogenación, oxidación, alquilación o deshidratación, originando una gran variedad de productos de alto valor añadido. ... -
Materiales puzolánicos para bajar las emisiones de CO2: soluciones locales para un problema global.
(2023)In recent decades, the cement sector has been looking for solutions to reduce the carbon footprint, being one of the most promising strategies, the replacement of clinker with supplementary cementitious materials, SCMs. ... -
Mechanochemistry for a smart and sustainable biodiesel production under heterogeneous catalysis
(2018-09-10)Fatty acid methyl esters (FAME) produced from vegetable oil by transesterification, labeled as ‘‘Biodiesel”, is industrially accomplished in the presence of a homogeneous basic catalyst, such as alkali hydroxide or methoxide ... -
Mesoporous mixed Nb2O5-ZrO2 catalysts for dehydration of glucose into 5-hydroxymethylfurfural
(2016-09-15)Biomass is the world’s most important renewable carbon source, whose major component, carbohydrates, can be valorized by transformation into biofuels and high value-added chemicals. Among the latter, 5-hydroxymethylfurfural ... -
Mesoporous niobium oxide for dehydration of D-xylose into furfural
(2013-09-13)El furfural posee un gran potencial como molécula plataforma de origen renovable para la síntesis de una alta variedad de compuestos químicos. Se obtiene mediante la deshidratación de pentosas, principalmente a partir de ... -
Metal carboxyphosphonates-based electrocatalysts
(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 ... -
Modelización computacional de la reacción de protólisis de la superficie de filosilicatos
(Macla, 2022)En la interfase mineral/solución de los filosilicatos se producen reacciones de adsorción, disolución y re-precipitación, dando lugar a un cambio de la estructura del sólido y de la solución. Este estudio tiene como ... -
Nanocatalysts for oxygen removal from biomass derived biofuel
(2018-09-10)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 ... -
Nanocatalysts for oxygen removal from biomass derived biofuel.
(2018-11-08)The use of bio-energy as a renewable alternative to fossil fuels is nowadays attracting more and more attention. Bio-fuel from biomass seems to be a potential energy substitute for fossil fuels since it is a renewable ... -
Nanocrystalline cathodes for PC-SOFCs
(2015-07-10)Ceramic proton conductors are of great interest for the development of solid oxide fuel cells (PC-SOFC) operating at relatively low temperatures between 400 and 700 ºC. Perovskites based on BaCeO3-δ exhibit the highest ... -
Nanocrystalline cathodes for PC-SOFCs based on BCZY
(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 ... -
Nanoesferas porosas de SiO2 dopadas con Zr y su uso en procesos catalíticos one-pot para la obtención de productos de alto valor añadido desde furfural
(2021)En el presente trabajo, se ha estudiado la modificación de nanoesferas porosas de SiO2 con diferente proporción de Zr para obtener catalizadores con relaciones molares Si/Zr entre 2.5 y 30. Estos materiales se han caracterizado ... -
Nanoestructuras de ceria-titania para fotodegradar azul de metileno con luz solar simulada
(2019-07-02)En los últimos años la protección ambiental y el uso de fuentes de energía renovables son dos objetivos principales en la investigación química. La energía solar se puede aprovechar para la degradación fotocatalítica de ... -
Nanopartículas de óxido de silicio y aluminio para la producción de 5-hidroximetilfurfural desde galactosa
(2022)El problema del calentamiento global, fuentes de recursos fósiles limitadas y amenazas de desabastecimiento empujan al desarrollo de nuevos métodos de obtención de recursos procedentes de fuentes renovables, tales como la ... -
NB2O5 soportado en SBA-15 para la deshidratación de glicerol a acroleína
(2013)La producción industrial de la acroleína se basa en la oxidación selectiva del propeno, de origen fósil, en presencia de catalizadores complejos de BiMoOx . Debido a la disminución de los recursos petroquímicos, los recursos ... -
New multifuncional divalent metal-coordinated sulfophosphonates: structures and proton conductivities
(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
(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 ...