Listar QICM - Contribuciones a congresos científicos por título

Mostrando ítems 81-100 de 158

    • Nanocatalysts for oxygen removal from biomass derived biofuel 

      Infantes-Molina, Antonia; Rodríguez-Aguado, Elena; Ballesteros-Plata, Daniel; Rodriguez-Castellon, Enrique (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 ...

    • Nanocátalysts for oxygen removal from biomass derived biofuel 

      Infantes-Molina, Antonia; Rodriguez-Castellon, Enrique; Cecilia, Juan Antonio; Ballesteros-Plata, Daniel; Rodríguez-Aguado, Elena (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 

      Dos Santos-Gómez, Lucía (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 

      Dos Santos-Gómez, Lucía; Zea-Garcia, Jesus D.; Porras-Vázquez, José Manuel; Marrero-López, David; Ramírez-Losilla, E. (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 

      Maderuelo Solera, Rocío; Richter, Stefan; Jiménez-Gómez, Carmen Pilar; García Sancho, Cristina; García-Mateos, Francisco José; [et al.] (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 

      Alberoni, C.; Barroso-Martín, Isabel; Infantes-Molina, Antonia; Rodriguez-Castellon, Enrique; Storaro, L.; [et al.] (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 

      Torres-Olea, Benjamín; Alcalá-García, María José; García Sancho, Cristina; Cecilia, Juan Antonio; Moreno-Tost, Ramon; [et al.] (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 

      Moreno-Tost, Ramon; Cecilia, Juan Antonio; Moreno Ruíz, A.; García Sancho, Cristina; Merida-Robles, Josefa Maria; [et al.] (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 

      Bazaga-García, Montse; Pérez Colodrero, Rosario M.; Salcedo, Inés R.; Olivera-Pastor, Pascual; Cabeza-Diaz, Aurelio; [et al.] (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 

      Salcedo, Inés R.; Pérez Colodrero, Rosario M.; Olivera-Pastor, Pascual; Losilla, Enrique R.; Zon, Jerzy; [et al.] (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 

      Salcedo, Inés R.; Bazaga-García, Montse; Pérez Colodrero, Rosario M.; Xanthopoulos, Konstantinos; Demadis, Konstantinos D.; [et al.] (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 ...

    • Novel microstructural strategies to enhance the electrochemical performance of La0.8Sr0.2MnO3-δ cathodes 

      Dos Santos-Gómez, Lucía; Porras-Vázquez, José Manuel; Ramirez-Losilla, Enrique; Marrero-López, David (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 acroleína mediante la deshidratación de glicerol en presencia de Al-SBA-15 

      Cecilia, Juan Antonio; García Sancho, Cristina; Merida-Robles, Josefa Maria; Santamaria-Gonzalez, Jose; Moreno-Tost, Ramon; [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 ...

    • Optimización de KIT6-Zr sulfatado para la obtención de isosorbida 

      Ginés-Molina, María José; Santamaria-Gonzalez, Jose; Maireles-Torres, Pedro Jesús (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 

      Cuesta-Garcia, Ana Maria; Morales-Cantero, Alejandro; Gomez-de-la-Torre, Angeles G.; Santacruz-Cruz, Maria 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-Garcia, Ana Maria; Zea-Garcia, Jesus D.; Londono-Zuluaga, Diana; Gomez-de-la-Torre, Maria de los Angeles; Santacruz-Cruz, Maria Isabel; [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 ...

    • 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-Diaz, 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 M.; Olivera-Pastor, Pascual; Santacruz-Cruz, Maria 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, Ramon; Merida-Robles, Josefa Maria; Santamaria-Gonzalez, Jose; 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, Ana; Gomez-de-la-Torre, Maria de los Angeles; P. Olbinado, Margie; 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 ...