Listar QICM - Contribuciones a congresos científicos por título
Mostrando ítems 84-103 de 216
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In-situ Molibdenum X-ray powder diffraction study of the early hydration of cementitious systems on a humidity chamber
Londono-Zuluaga, Diana; Tobón, Jorge Iván; García-Aranda, Miguel Ángel
; León-Reina, Laura; Santacruz-Cruz, María Isabel; Gómez-de-la-Torre, María de los Ángeles[et al.] (2016-07-06)
The durability of cement-based construction materials depends on the environmental conditions during their service life. A further factor is the microstructure of the cement bulk, established by formation of cement hydrates. ... -
In-situ synchrotron powder diffraction study: activation of Portland and Belite cements
Morales-Cantero, Alejandro; Cuesta-García, Ana María; Gómez-de-la-Torre, María de los Ángeles; Santacruz-Cruz, María Isabel; García-Aranda, Miguel Ángel (2022-05-31)
Portland cement (PC), whose main phase is alite (Ca3SiO5, C3S), is one of the most manufactured products in the world. However, cement industry is one of the major contributors for greenhouse gases (GHG) emissions. In the ... -
Influence of lanthanum doping on the structure and transport properties of CeO2
Zamudio-García, Javier; Porras-Vázquez, José 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 ... -
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 ... -
Influence of presence of ammonium in the hydrothermal illitization of smectite
Bentabol-Manzanares, María José (Alberto López Galindo, 2017)
During diagenesis, several reactions induce changes both in phyllosilicates and organic matter, which in basins associated to the production of hydrocarbons leads to ammonium fixation in illite and micas [1] and to ... -
Influence of synthesis conditions in the catalytic performance of Nb-P catalysts
Cecilia-Buenestado, Juan Antonio; García-Sancho, Cristina; Mérida-Robles, Josefa María; Santamaría-González, José; Maireles-Torres, Pedro Jesús; Jiménez-López, José Antonio; Moreno-Tost, Ramón[et al.] (2014-07-14)
Glycerol is a natural byproduct of the manufacture of soaps from the hydrolysis of animal fats and vegetable oils. Due to the incessant increment of the worldwide production of biodiesel, the production of glycerol, a ... -
Influence of the calcium sulfate source on the rheological behaviour of calcium sulfoaluminate cement pastes
Santacruz-Cruz, María Isabel; García-Maté, Marta; García-Aranda, Miguel Ángel; Gómez-de-la-Torre, María de los Ángeles (2013-09-13)
Calcium sulfoaluminate (CSA) cements are receiving increasing attention since their manufacture produces much less CO2 than ordinary Portland cement (OPC) [1]. In addition, they show interesting properties such as high ... -
In‐Situ Early Age Hydration Characterization of LC3 binders
Gómez-de-la-Torre, María de los Ángeles (2022-09-20)
Ha sido una jornada en la que hemos expuesto los logros más importantes del grupo de la UMA "Cement Science Group" en relación a los cementos de arcillas calcinadas. In this workshop, we have exposed the most important ... -
La(III), Cd(II) and Ni(II) biosorption using algae residue
Zhang, Y.; Ballesteros-Plata, Daniel; Vincent, Thierrie; Rodríguez-Castellón, Enrique; Guibal, Eric (Real Sociedad Española de Química, 2022-07-28)
Brown algae have the capacity to accumulate metal ions, thanks mainly to the alginate present in the cell wall containing functional groups (hydroxyl, carboxyl, amines, etc.) [2]. During the extraction of bio-stimulants ... -
LaCr0.75Mn0.25O3+δ –CGO nanocomposite electrodes for highly efficient Solid Oxide Fuel Cells
Zamudio-García, Javier; Porras-Vázquez, José 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-Vázquez, José 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 ... -
Learning strategies for the acquisition of specific skills, and its evaluation through an integrated rubric in several degrees of University of Malaga (Spain).
Santacruz-Cruz, María Isabel; Díaz-Ramos, Antonio; López-Guerrero, María del Mar; Aranda-Garrido, María Lourdes; Martín-Valero, Rocío; Ruiz-Párraga, Gema Teresa; Gutiérrez-Pérez, Antonia; Jiménez-Lara, Antonio Jesús[et al.] (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
López-Asensio, Raquel; Cecilia-Buenestado, Juan Antonio; Jiménez-Gómez, Carmen Pilar; García-Sancho, Cristina; Moreno-Tost, Ramón; Maireles-Torres, Pedro Jesús[et al.] (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.
Gómez-de-la-Torre, María de los Ángeles; Koufany, Imane; Redondo-Soto, Cinthya; Guirado-Rodríguez, Beatriz; Benjumea-Rejano, Eva M.; Gómez-García, Francisco; Cuesta-García, Ana María; Santacruz-Cruz, María Isabel; Rodríguez-Ruiz, María Dolores; García-Aranda, Miguel Ángel[et al.] (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
Malpartida-García, Irene; Maireles-Torres, Pedro Jesús; Lair, Valentin; Halloumi, Samy; Thiel, Julien; Lacoste, François[et al.] (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 ... -
Mejoras en las resistencias mecánicas de cementos con bajo contenido de clínker.
Morales-Cantero, Alejandro; Vallina, Diego; Gómez-de-la-Torre, María de los Ángeles; Cuesta, Ana; Santacruz-Cruz, María Isabel; García-Aranda, Miguel Ángel[et al.] (2024)
Los cementos con arcilla calcinada y piedra caliza, conocidos como LC³ (del inglés, Limestone calcined clay cement) permiten la reducción de las emisiones de CO₂ hasta en un 55%. Las proporciones de las sustituciones ... -
Mesoporous mixed Nb2O5-ZrO2 catalysts for dehydration of glucose into 5-hydroxymethylfurfural
García-Sancho, Cristina; Cecilia-Buenestado, Juan Antonio; Moreno-Tost, Ramón; Maireles-Torres, Pedro Jesús (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
García-Sancho, Cristina; Rubio Caballero, Juan Miguel; Moreno-Tost, Ramón; Mérida-Robles, Josefa María; Santamaría-González, José; Jiménez López, Antonio; Maireles-Torres, Pedro Jesús[et al.] (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 ...