Envíos recientes

  • In-situ synchrotron powder diffraction study: activation of Portland and Belite cements 

    Morales-Cantero, Alejandro; Cuesta-Garcia, Ana Maria; Gomez-de-la-Torre, Maria de los Angeles; Santacruz-Cruz, Maria 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 ...
  • 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 ...
  • Analysis of cementitious building materials by synchrotron x-ray imaging 

    Shirani, Shiva (2022)
    Cement manufacturing especially Portland Cement, the main component for the fabrication of concretes, is the most used building and construction material which has complex hierarchical microstructures. Quantitative ...
  • Importancia de la morfología de estructuras de ceria-titania en la fotodegradación de azul de metileno bajo UV y luz solar simulada 

    Alberoni, Chiara; Barroso-Martín, Isabel; Infantes-Molina, Antonia; Rodríguez-Castellón, Enrique; Storaro, Loreta; [et al.] (2022-02-02)
    La contaminación del agua constituye un problema de alcance mundial hoy día cuyos efectos perjudiciales se manifiestan tanto a corto como a largo plazo. De entre todas las fuentes antropogénicas de polución del agua, se ...
  • Cobalt phosphinates as precursors of cobalt phosphide electrocatalysts 

    Vílchez-Cózar, Álvaro; Cabeza, Aurelio; Bazaga-García, Montse; Visa, Aurelia; Ilia, Gheorghe; [et al.] (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, ...
  • Pt-Fe2O3 based catalysts for anisole hydrodeoxygenation 

    Barroso-Martín, Isabel; Infantes-Molina, Antonia; Rodriguez-Castellon, Enrique (2021)
    The depletion of fossil fuels along with massive emissions of greenhouse gases (GHG) emissions are serious issues facing society nowadays. Considering that almost a quarter of fossil fuel consumption is associated with the ...
  • Catalizadores de cu-Mn para la hidrogenación de furfural en fase gas 

    Jiménez-Gómez, Carmen Pilar; García Sancho, Cristina; Cecilia, Juan Antonio; Alba Rubio, Ana C.; Moreno-Tost, Ramon; [et al.] (2021)
    La biomasa está adquiriendo un papel fundamental para la producción de energía, biocombustibles y productos químicos. Su hidrogenación a alcohol furfurílico (FOL) es la principal aplicación del furfural, proceso que se ...
  • 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, Juan Antonio; Moreno-Tost, Ramon; 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, ...
  • 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 ...
  • Imidazole-containing Co2+ and Ni2+ etidronates: crystal structures and electrochemical behaviour 

    Bazaga García, Montse; Colodrero, Rosario M.P.; Vílchez-Cózar, Álvaro; Armakola, Eirini; Gjika, M.; [et al.] (2021)
    Metal phosphonates-based coordination polymers (CPs) are known to exhibit versatile structural diversity and functionality. Thus, they have been used, among other applications, as electrocatalyst precursors for both, PEMFCs ...
  • Electrocatalytic properties of metal hydroxy-phosphonoacetate derivatives for OER, ORR and HER 

    Colodrero, Rosario M.P.; Vílchez-Cózar, Álvaro; Bazaga García, Montse; Olivera Pastor, Pascual; López González, María del Mar; [et al.] (2021)
    Although Pt and Ru/Ir-based noble metal materials are the state-of-the-art electrocatalysts for energy storage and conversion, their applications are still limited by their scarcity and high price. Therefore, the design ...
  • 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 ...
  • Tunable electrode architectures for La0.8Sr0.2Fe1-xTixO3-δ based Symmetrical Solid Oxide Fuel Cells. 

    Zamudio-García, J; Porras Vázquez, Jose Manuel; Losilla, Enrique R.; Marrero-López, David (2021-07-18)
    The efficiency of SOCF electrodes can be improved by optimizing the microstructure from alternative preparation methods, such as infiltration and nanostructured electrodes deposited at low temperature. ...
  • LaCr0.75Mn0.25O3+δ –CGO nanocomposite electrodes for highly efficient Solid Oxide Fuel Cells 

    Zamudio-García, J; Porras Vázquez, Jose 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, ...
  • Characterization of C-S-H gels by pair distribution function analysis 

    Aranda, M.A.G. (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 ...
  • ANALYSIS OF BUILDING MATERIALS BY SYNCHROTRON X-RAY IMAGING 

    Shirani, Shiva; Cuesta, Ana; Morales-Cantero, Alejandro; De la Torre, Ángeles G.; Santacruz-Cruz, Maria Isabel; [et al.] (-, 2021-01)
    Building materials have complex hierarchical microstructures. The largest components are coarse aggregates with dimensions larger than a few centimetres and the smallest ones are the calcium silicate hydrate (C-S-H) gel ...
  • Synchrotron X-ray pair distribution function analysis of calcium silicate pastes 

    Cuesta-Garcia, Ana Maria; Gomez-de-la-Torre, Maria de los Angeles; García-Aranda, Miguel Ángel (2021)
    The analysis of nanocrystalline and amorphous phases in cement matrices which contain high amounts of crystalline phases is a very challenging task. In this respect, pair distribution function (PDF) methodology in ...
  • Synthesis and properties of novel lanthanide carboxyphosphonates 

    Pérez Colodrero, Rosario Mercedes; Ruiz Salcedo, Inés; Bazaga García, Montse; Zon, Jerzy; Zaręba, J.; [et al.] (2021-02-01)
    Metal phosphonates are essentially acidic solids featured by groups such as P-OH, -COOH, etc. The presence of bound and lattice water favors the formation of H-bond networks, which make these compounds appropriate as proton ...
  • New multifuncional divalent metal-coordinated sulfophosphonates: structures and proton conductivities 

    Bazaga García, Montse; Pérez Colodrero, Rosario Mercedes; Ruiz Salcedo, Inés; 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 ...
  • Transition metal hydroxyphosphonoacetates as precursors of electrocatalysts 

    Vilchez Cózar, Álvaro; Pérez Colodrero, Rosario Mercedes; Bazaga-García, Montse; Ruiz Salcedo, Inés; Olivera-Pastor, Pascual; [et al.] (2021-01-29)
    Coordination polymers (PCs) are widely studied due to their applicability in many fields. Among them, metal phosphonates are attractive materials due to their great structural and functional diversity, as proton conductors ...

Más