Listar QICM - Contribuciones a congresos científicos por título
Mostrando ítems 27-46 de 209
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Characterization of C-S-H gels by pair distribution function analysis
(2021)Portland cement (PC) is the most manufactured world product. However, cement industry is one of the major contributors for greenhouse gas emissions. On average, for every ton of grey PC clinker, around 0.87 CO2 tons are ... -
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 ... -
Clinkering and hydration study of non-active and active Belite-Alite-Ye'elimite (BAY) cements
(2017-10-17)The manufacturing process of ye'elimite rich cements emit about 15-37% less CO2 to the atmosphere than OPC. Cements that contain belite, ye’elimite and ferrite, known as BYF cements, are promising eco-friendly binders. ... -
Cobalt phosphinates as precursors of cobalt phosphide electrocatalysts
(2022-02-03)The scarcity and high cost of Pt and Ru/Ir-based noble metal electrocatalysts forces to design alternative low-cost and efficient materials for sustainable energy storage and conversion technologies. Among them, ... -
Combined use of laboratory X-ray diffraction and microtomography in early age cement hydration.
(2023)In situ laboratory X-ray powder diffraction (LXRPD) is widely used for studying cement hydration at early ages. However, this approach has limitations due to the intrinsic characteristics of the main methodologies (flat ... -
Combined use of X-ray diffraction and microtomography for accurate cement hydration studies.
(2023)Ver fichero adjunto que contiene toda la información incluyendo imagenes -
Combining laboratory X-ray powder diffraction and microtomography for studying cement hydration
(2023)Se da en documento adjunto con gráficos. -
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 ... -
Conversión de celulosa en 5-hidroximetilfurfural en presencia de Zr-KIT-6
(2018-07-04)El 5-hidroximetilfurfural (HMF) es un producto químico de alto valor añadido que puede ser transformado en numerosos productos químicos y biocombustibles. Se han realizado numerosos esfuerzos para obtener HMF a partir de ... -
Cr-free Ni/MgO catalysts for hydrogenation of furfural
(2018-01-09)In the last century, the industrial development and the increase of the world population have caused the depletion of fossil reserves. This fact together with others factors have led to the search of alternative. Biomass ... -
Dehydration of glucose to 5-hydroxymethylfurfural using zirconium doped mesoporous silica as catalyst
(2019-10-03)In recent years, the valorization of carbohydrates coming from lignocellulosic biomass. such as glucose, is gaining attention to obtain high value-added products like 5-hydroxymethylfurfural (HMF). The objective of this ... -
Desarrollo de catalizadores sólidos para la síntesis sostenible de dimetil isosorbida
(2017-06-30)En los últimos años, el interés creciente por la biomasa lignocelulósica como fuente renovable y sostenible para la producción de energía, biocombustibles y productos químicos con un amplio espectro de aplicaciones ha ... -
Deshidratación de glucosa a 5-hidroximetilfurfural mediante sílices mesoporosas dopadas con circonio
(2019-07-01)La búsqueda de nuevas fuentes de carbono se ha convertido en un objetivo esencial debido tanto a la disminución de las reservas de combustibles fósiles, como a la contaminación que su uso conlleva. El empleo de la biomasa ... -
Design and optimisation of new formulations of Belite-Alite Calcium Sulfoaluminate (BACSA) eco-cements
(2015-07-02)Belite Calcium SulfoAluminate (BCSA) eco-cements were developed as OPC substitutes since in their production release 22% less CO2 than OPC. BCSA eco-cements contain belite as main phase (>50 wt%) and ye'elimite as secondary ... -
Diffraction for industries, businesses and health
(2019-10-01)Se adjunta abstract en PDF- PDF abstract is attached -
Dispersion and optimization of a calcium sulfoaluminate mortar prepared with superplasticizer
(2016-06-29)Calcium sulfoaluminate (CSA) cements/mortars are receiving increasing attention since their manufacture produces less CO2 than ordinary Portland cement (OPC) (up to 22% of decrease depending on its composition). These ... -
Doble activación de cementos BYF (belita-ye’elemita-ferrita) y su efecto en pastas y morteros
(2022-06-30)Los eco-cementos tipo BYF se postulan como una alternativa a los PC (Cementos Portland) por su menor demanda de caliza. Estos están principalmente constituidos por tres fases: Belita (-C2S o -Ca2SiO4), Ye’elemita (C4A3S ... -
Early hydration study of standard and doped Alite-Belite-Ye’elimite (ABY) cements through Synchrotron Radiation
(2018-07-09)The manufacturing of ye'elimite-rich cements releases from 15 to 37%, depending on their composition, less CO2 to the atmosphere than ordinary Portland cement (OPC). BYF cements containing belite, ye’elimite and ferrite ... -
Efecto sinérgico entre sales inorgánicas y γ-Al2O3 para la deshidratación de xilosa a furfural
(2018-07-04)La biomasa lignocelulósica, con un alto contenido en hemicelulosa, es una de las principales fuentes de pentosas pentosas a partir de las cuales se pueden obtener biocombustibles y productos químicos de alto valor añadido, ... -
Effect of alkanolamines in kaolinitic calcined clays pozzolanic reactivity.
(2023)Five kaolinitic clays with different amounts of kaolinite, ranging between ~70 wt% and ~30 wt%, have been studied to unravel the possible activation effect of alkanolamines on the aluminate fraction of calcined clays. ...