Listar QICM - Contribuciones a congresos científicos por título
Mostrando ítems 120-139 de 216
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Obtención de 5-hidroximetilfurfural a partir de agarosa y galactosa usando nanoesferas de sílica-alúmina.
Torres-Olea, Benjamín; Rodríguez Carballo, Gabriela; García-Sancho, Cristina
; Moreno-Tost, Ramón; Cecilia-Buenestado, Juan Antonio; Maireles-Torres, Pedro Jesús[et al.] (2023)
En los últimos años, existe un gran interés en la obtención de moléculas plataforma mediante el uso de materias primas renovables. El 5-hidroximetilfurfural (HMF), una de estas moléculas plataforma, es un compuesto valioso ... -
Obtención de acroleína mediante la deshidratación de glicerol en presencia de Al-SBA-15
Cecilia-Buenestado, Juan Antonio; García-Sancho, Cristina; Mérida-Robles, Josefa María; Santamaría-González, José; Moreno-Tost, Ramón; Maireles-Torres, Pedro Jesús[et al.] (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 ... -
La odisea de medir PDF con un difractómetro “convencional”
En esta ponencia se presenta la puesta a punto del difractómetro D8 Advance (Bruker S.L.) para la adquisición de datos de laboratorio de PDF (Pair Distribution Function) junto con los resultados obtenidos. -
One step synthesis of nanocomposite electrodes 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 irregular and seasonal disposition of renewable energy requires advanced devices for energy storage and conversion. Reversible electrochemical cells can address this approach by operating as both electrolyzer and fuel ... -
Optimización de KIT6-Zr sulfatado para la obtención de isosorbida
En los últimos años, el desarrollo de nuevos procesos catalíticos para la transformación de azúcares está situando a la biomasa lignocelulósica en un lugar privilegiado como materia prima sostenible y renovable para la ... -
Pair distribution function as a tool to characterize C-S-H gels
Cuesta-García, Ana María; Morales-Cantero, Alejandro; Gómez-de-la-Torre, María de los Ángeles; Santacruz-Cruz, María Isabel; García-Aranda, Miguel Ángel (2021)
Portland cement (PC) is the most manufactured product in the world. However, cement industry is one of the major contributors for greenhouse gas emissions. For every ton of grey PC clinker, around 0.87 CO2 tons are released ... -
Pair distribution function studies in cementitious systems
Cuesta-García, Ana María; Zea-Garcia, Jesus D.; Londono-Zuluaga, Diana; Gómez-de-la-Torre, María de los Ángeles; Santacruz-Cruz, María Isabel; Vallcorba, Oriol; García-Aranda, Miguel Ángel[et al.] (2017-10-24)
The analysis of amorphous/nanocrystalline phase(s) within cement matrices that contain high amounts of crystalline phase(s) is very challenging. Synchrotron techniques can be very useful to characterize such complex samples.1 ... -
Paleoclimatic records from the Fuente Nueva 1 section (Orce, Guadix-Baza Basin, NE Granada, Spain): preliminary mineralogical data
Rodríguez-Ruiz, María Dolores; Granados, Alejandro; Espigares-Ortiz, María Patrocinio; Ros-Montoya, Sergio; Palmqvist-Barrena, Carlos Paul; Martínez-Navarro, Bienvenido; Santamaría, Ángel; Guerra-Merchán, Antonio[et al.] (Selahattin Kadir, Paul A. Schroeder, Asuman Tükmenoglu, Fahri Esenli, Emin Ciftçi, 2022-07-29)
The mineralogical study of 45 samples collected from the Fuente Nueva 1 (FN1) section (Orce, NE Granada, Spain) has been carried out using X-ray diffraction data on bulk powder and <2 m fraction to the establishment the ... -
Phase Composition and Transport Properties of oxide ion conductors based on Sr1-xKxGeO3-x/2
Dos-Santos-Gómez, Lucía; Porras-Vázquez, José Manuel; Fernández-Palacios, Sara; Compaña Prieto, José Manuel; Cabeza-Díaz, Aurelio (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 ... -
Photocatalytic behavior of phosphonate-based hybrid materials on dyes and phenols degradation
Bazaga-García, Montse; Pérez-Colodrero, Rosario Mercedes; Olivera-Pastor, Pascual; Santacruz-Cruz, María Isabel; García-Aranda, Miguel Ángel (2013-09-25)
There is increasing interest in using heterogeneous catalysis for mineralization of organic pollutants. Within Advanced Oxidation Processes (AOPs), Photo-Fenton reaction is one of the most efficient methodologies. To ... -
Porous aluminosilicates as acid catalysts for glucose dehydration to 5-hydroxymethylfurfural
Moreno Recio, Mercedes; Moreno-Tost, Ramón; Mérida-Robles, Josefa María; Santamaría-González, José; Maireles-Torres, Pedro Jesús (2015-05-12)
In the present work, the catalytic behavior of micro- and mesoporous aluminosilicates in glucose dehydration is compared. In this sense, different commercial zeolites (Beta, Y and ZSM-5, in their protonic form) and ... -
Portland cement pastes analysed by synchrotron and laboratory X-ray imaging
Shirani, Shiva; Cuesta-García, Ana María; Gómez-de-la-Torre, María de los Ángeles; Olbinado, Margie P.; García-Aranda, Miguel Ángel (2020)
Portland Cement (PC) is the most used construction material and the derived building materials have very complex hierarchical microstructures. Quantitative characterization of their microstructures is of paramount importance ... -
Preparation and characterization of phosphorus-containing electrocatalyst for OER, HER and ORR.
Vílchez-Cózar, Álvaro; Bazaga-García, Montse; Olivera-Pastor, Pascual; Cabeza-Díaz, Aurelio; Pérez-Colodrero, Rosario Mercedes (2022-11)
Phosphorus-based materials, such as transition metal phosphides and phosphates/pyrophosphates, have drawn considerable attention as promising alternatives to noble metal-based catalysts (Pt, Ru, Ir) owing to their widely ... -
Preparation of N-doped Carbon/Metal Phosphides as Promising Trifunctional Electrocatalysts Toward the OER, ORR and HER
Vílchez-Cózar, Álvaro; Bazaga-García, Montse; Marrero-López, David; Olivera-Pastor, Pascual; Demadis, Konstantinos D.; Cabeza-Díaz, Aurelio; Pérez-Colodrero, Rosario Mercedes[et al.] (2022-07-27)
Sustainable energy storage and conversion technologies, such as electrochemical water splitting and fuel cells, attracts increasing attention as alternative processes to advance toward a global decarbonation. However, the ... -
Processing and characterisation of Calcium SulfoAluminate (CSA) eco-cements coated with a hybrid organo-inorganic material for photocatalytic applications
Morales-Cantero, Alejandro; Cabeza-Díaz, Aurelio; Gómez-de-la-Torre, María de los Ángeles; García-Aranda, Miguel Ángel; Santacruz-Cruz, María Isabel (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 ... -
Processing and characterisation of calcium sulphoaluminate ecocements containing Microencapsulated Phase Change Materials
Santacruz-Cruz, María Isabel; Romero-Espinosa, Andrea; Sanfélix, Susana G.; Cuesta-García, Ana María; Gómez-de-la-Torre, María de los Ángeles; Kjøniksen, Anna-Lena; García-Aranda, Miguel Ángel[et al.] (2018-07-17)
Calcium SulphoAluminate (CSA) cements can be considered as ecocements, since their production releases up to 40% less CO2 than Ordinary Portland Cement (OPC) [1]. In addition, Microencapsulated Phase Change Materials (MPCM) ... -
Processing and hydration activation of limestone calcined clay belite rich cements.
Redondo-Soto, Cinthya; Fernández-Pérez, Noelia; Cuesta-García, Ana María; Santacruz-Cruz, María Isabel; Gastaldi, Daniela; Canonico, Fulvio; García-Aranda, Miguel Ángel[et al.] (2023)
Belite-rich limestone calcined clay cements, BR-LC3, could be an alternative for low carbon binders with potentially very good durability properties, given the high amount of C-S-H gel from the cement hydration with ... -
Producción de 5-etoximetilfurfural desde azúcares derivados de la biomasa usando zeolitas en procesos de 1 y 2 pasos
Torres-Olea, Benjamín; García-Sancho, Cristina; Cecilia-Buenestado, Juan Antonio; Moreno-Tost, Ramón; Maireles-Torres, Pedro Jesús (2021)
En este trabajo se ha comprobado la efectividad de la zeolita beta (relación molar Si/Al= 10) en la isomerización de glucosa a fructosa y su deshidratación a HMF, y posterior eterificación a EMF, en un solo paso en etanol, ... -
Proton Conduction Properties of Metal phosphonates and Application as Fillers in PEMFCs
Bazaga-García, Montse; Cabeza-Díaz, Aurelio; Pérez-Colodrero, Rosario Mercedes; Salcedo, Inés R.; Vílchez-Cózar, Álvaro; Olivera-Pastor, Pascual[et al.] (2022-07)
Metal phosphonate (MP)-based coordination polymers (CPs) are structurally versatile multifunctional compounds containing different acidic groups such as P-OH; SO3H, COOH, N+-H, etc. These features result in the formation ... -
Proton conductivity and luminiscence properties of lanthanide aminotriphosphonates
Bazaga-García, Montse; Angeli, Giasemi K.; Papathanasiou, Konstantinos E.; Salcedo, Inés R.; Olivera-Pastor, Pascual; Losilla, Enrique R.; Choquesillo-Lazarte, Duane; Hix, Gary B.; Cabeza-Díaz, Aurelio; Demadis, Konstantinos D.[et al.] (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, ...