Listar QICM - Contribuciones a congresos científicos por título
Mostrando ítems 107-126 de 216
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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 ... -
New multifunctional sulfonato-containing metal phosphonates proton conductors
(2018-10-01)Anchoring of acidic functional groups to organic linkers acting as ligands in metal phosphonates has been demonstrate to be a valid strategy to develop new proton conductor materials, which exhibit tunable properties and ... -
New Multifunctional Zirconium(IV) Phosphonates Derivativesas Proton Conductors and Catalysts
(2023)Coordination polymers based in phosphonic acid display a wide range of metalcoordination modes. Moreover, the existence of acidic P-OH groups in their structure, as well as of others functionalized organic group such as ... -
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 ... -
Obtención de 5-hidroximetilfurfural a partir de agarosa y galactosa usando nanoesferas de sílica-alúmina.
(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
(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”
(2022)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.
(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
(2018-07-02)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
(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
(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 ...