Listar QICM - Contribuciones a congresos científicos por fecha de publicación
Mostrando ítems 21-40 de 209
-
High efficiency cathodes for SOFCs prepared by spray-pyrolysis
(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 ... -
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 ... -
Compatibility and performance of SOFCs based on lanthanum tungstates
(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 ... -
Solid Oxide Fuel Cells based on Lanthanum Tungstates Electrolytes
(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, ... -
Novel microstructural strategies to enhance the electrochemical performance of La0.8Sr0.2MnO3-δ cathodes
(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 ... -
Phase Composition and Transport Properties of oxide ion conductors based on Sr1-xKxGeO3-x/2
(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 ... -
Estudio de la deshidratación de sorbitol a isosorbida en presencia de zeolitas ácidas
(2015-07-23)Actualmente, el interés creciente por el uso de la biomasa como materia prima renovable y sostenible para la producción de energía, productos químicos y biocombustibles, está impulsando el desarrollo de nuevos procesos y ... -
Processing and characterisation of Calcium SulfoAluminate (CSA) eco-cements coated with a hybrid organo-inorganic material for photocatalytic applications
(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 ... -
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 ... -
Aplicación de estrategias de aprendizaje para la adquisición de competencias profesionales y su evaluación mediante una rúbrica integradora en diversos títulos de grado de la Universidad de Málaga
(2015-07-28)El Espacio Europeo de Educación Superior ha supuesto importantes cambios en el proceso de enseñanza-aprendizaje para la adquisición de competencias transversales y específicas. La calidad es un factor estratégico, por lo ... -
Obtención de acroleína mediante la deshidratación de glicerol en presencia de Al-SBA-15
(2015-09-02)Hoy en día es necesaria la búsqueda de nuevas aplicaciones a los excedentes de glicerol provenientes de la industria del biodiésel, siendo su deshidratación a acroleína, un intermedio muy importante y versátil en la industria ... -
Valorization of carbohydrates: dehydration of sorbitol to isosorbide in the presence of acidic zeolites
(2015-10-16)Currently, the growing interest in the use of biomass as a renewable and sustainable raw material for the production of energy, chemicals and biofuels is driving the development of new catalytic processes and technologies ... -
γ-Al2O3 as acid catalyst for dehydration of glucose to 5-hydroxymethylfurfural
(2015-10-19)Currently, the search and development of sustainable feedstocks for chemicals derived from petrol have gained worldwide attraction because of the instability of the price of crude oil, the reduction of fossil oil reserves, ... -
Gas phase selective hydrogenation of furfural to furfuryl alcohol and 2-methylfuran over Cu-CeO2 coprecipitated catalysts
(2015-10-19)Furfural is an important chemical derived from lignocellulosic biomass, in particular from C5 sugars like xylose, and it is considered as a platform molecule of great potential for the synthesis of a broad spectrum of ... -
Clinkering and early age hydration characterization of Belite-Alite Calcium Sulfoaluminate (BACSA) cements
(2015-10-26)In this work, four BACSA clinkers with different compositions (belite ~ 70-55 wt %, alite ~ 10-15 wt % and ye’elimite ~ 10-15 wt %) were synthesized (at laboratory scale). Lime, gypsum, kaolin and sand were used as raw ... -
Hydration study of Belite-Alite Calcium Sulfoaluminate (BACSA) cement blended with fly ash
(2015-10-26)The main objective of this work is to understand the effect of the addition of fly ash (0, 15 and 30 wt%) in the hydration of a BACSA cement paste (water/cement=0.4) prepared with 12 wt% of anhydrite. The pastes were ... -
Structure-properties correlations in divalent metal phosphonates
(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 ... -
Proton conductivity and luminiscence properties of lanthanide aminotriphosphonates
(2016)Metal phosphonates are multifunctional solids with tunable properties, such as internal H-bond networks, and high chemical and thermal stability [1]. In the present work, we describe the synthesis, structural characterization, ... -
Synthesis and proton conduction properties of lanthanide amino-sulfophosphonates
(2016)Crystalline acid-functionalized metal phosphonates are potential candidates as proton conducting electrolytes. Their frameworks can be chemically modified to contain proton carriers such as acidic groups (P-OH; -SO3H, ... -
X-Ray powder diffraction laboratory @ University of Málaga (UMA)
(2016-06-27)X-Ray Powder Diffraction (XRPD) laboratory is a facility placed at Servicios Centrales de apoyo a la Investigación (SCAI) at University of Malaga (UMA) http://www.scai.uma.es/. This facility has three XRPD diffractometers ...