• The use of mo and cu monochromatic radiations for quantitative phase analysis: study of the accuracy 

      Gomez-de-la-Torre, Maria de los Angeles; León-Reina, Laura; Cuesta-Garcia, Ana Maria; García-Maté, Marta; Álvarez-Pinazo, Gema; [et al.] (2016-06-27)
      Cement hydration is a very complex process in which crystalline phases are dissolving in water and after supersaturation hydrated crystalline and amorphous phases precipitate. Great efforts are being made to develop ...
    • Time-dependent monitoring of cement hydration by combined laboratory x-ray microtomography and powder diffraction 

      Redondo-Soto, Cinthya; Cuesta, Ana; Salcedo, Inés R.; León-Reina, Laura; García-Aranda, Miguel Ángel (2022-06-30)
      Following the reaction degree of amorphous phases in cements is very challenging. It becomes even harder when some additions (supplementary cementitious materials) are employed. Nowadays, calcined clays are attracting a ...
    • Transformaciones microtexturales de esmectita a illita, en presencia de amonio 

      Huertas, F. Javier; Bentabol-Manzanares, Maria Jose; Van Driessche, Alexander (Macla, 2022)
      Durante la diagénesis se producen reacciones que afectan a los filosilicatos y a la materia orgánica, que lleva a la fijación de NH4 en las illitas (Ill) y en las micas. Además, las esmectitas (Sm) sufren reorganizaciones ...
    • Transition metal hydroxyphosphonoacetates as precursors of electrocatalysts 

      Vilchez Cózar, Álvaro; Pérez Colodrero, Rosario M.; Bazaga-García, Montse; Salcedo, Inés R.; 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 ...
    • Tunable crystal structure and proton conductivity of lanthanide nitrilotrismethylphosphonates 

      Salcedo, Inés R.; Pérez Colodrero, Rosario M.; Hix, Gary B.; Cabeza-Diaz, Aurelio; Bazaga-García, Montse; [et al.] (2018-10-01)
      Metal phosphonates are multifunctional solids with remarkable stability and proton conducting properties owing to their structure is usually composed of extended hydrogen-bond networks that favor proton transfer pathways ...
    • 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. ...
    • Tuning Proton Conductivity in A Multifunctional Calcium Phosphonate Hybrid Framework 

      Cabeza-Diaz, Aurelio; Bazaga-García, Montse; Pérez Colodrero, Rosario M.; Papadaki, M.; Olivera-Pastor, Pascual; [et al.] (2014-06-25)
      Multi-chelating phosphonate ligands are organic linkers alternative to polycarboxylates and other ligands providing synthetic access to a number of thermally- and chemically-stable MOFs [1]. Metal phosphonates are amenable ...
    • Tuning Proton Conductivity Properties of Lanthanide Amino-Sulfophosphonates-Loaded Nafion Composite Membranes 

      Bazaga-García, Montse; Salcedo, Inés R.; Pérez Colodrero, Rosario M.; Villemin, Didier; Cabeza-Diaz, Aurelio; [et al.] (2017-07-05)
      Polymer-based electrolytes in proton exchange membrane fuel cells (PEMFCs) utilize acidic groups as proton carriers and hydrogen bonding networks as proton-conducting pathways to facilitate proton transport. Crystalline ...
    • Valorisation of glycerol by new mechanochemical processes 

      Malpartida-García, Irene; Maireles-Torres, Pedro Jesús; Lair, Valentin; Halloumi, Samy; Thiel, Julien; [et al.] (2019-05-22)
      The search for new applications of glycerol, as a chemical platform from which a broad spectrum of new valuable derivatives can be obtained, is ongoing. In the present communication, a new mechano-chemical reactor is used ...
    • Valorización de huesos de aceituna para la obtención de furfural en presencia de gamma- Al2O3 y CaCl2 

      Fúnez Núñez, Inmaculada; García Sancho, Cristina; Cecilia, Juan Antonio; Moreno-Tost, Ramon; Serrano Cantador, Luis; [et al.] (2019-07-02)
      En la actualidad, se considera que la biomasa lignocelulósica es una materia prima sostenible muy prometedora, ya que es la única fuente de carbono renovable que no compite con la cadena alimentaria. A partir de ella puede ...
    • Valorización de la borra del café: producción de biodiesel y 5-hidroximetilfurfural/furfural 

      Perez Merchan, antonio manuel; Malpartida-García, Irene; Cecilia, Juan Antonio; Moreno-Tost, Ramon; Maireles-Torres, Pedro Jesús (2022)
      VALORIZACIÓN DE LA BORRA DEL CAFÉ: PRODUCCIÓN DE BIODIESEL Y 5-HIDROXIMETILFURFURAL/FURFURAL
    • Valorization of carbohydrates: dehydration of sorbitol to isosorbide in the presence of acidic zeolites 

      Santamaria-Gonzalez, Jose; Lerena Gil, Isabel; Ginés-Molina, María José; Merida-Robles, Josefa Maria; Moreno-Tost, Ramon; [et al.] (2015-10-16)
      Currently, the growing interest in the use of biomass as a renewable and sustainable raw material for the production of energy, chemicals and biofuels is driving the development of new catalytic processes and technologies ...
    • Valorization of olive stones to obtain furfural in the presence of gamma-Al2O3 and CaCl2 

      Fúnez Núñez, Inmaculada; García Sancho, Cristina; Cecilia, Juan Antonio; Moreno-Tost, Ramon; Serrano Cantador, Luis; [et al.] (2019-10-03)
      Furfural is considered as one of the 12 platform molecules derived from biomass for the synthesis of high value-added chemicals. It is mainly produced by acid-catalyzed dehydration ofpentoses, such as xylose, which can be ...
    • Water-to-cement ratio influence on low-carbon cements performances 

      Santacruz-Cruz, Maria Isabel; Zea-Garcia, Jesus D.; Londono-Zuluaga, Diana; Cuesta-Garcia, Ana Maria; García-Aranda, Miguel Ángel; [et al.] (2019)
      Portland Cement (PC) is the most important active ingredient in most of the construction concrete. However, the PC production is associated with a high carbon dioxide release (around 1 ton of CO2 per ton of PC). One approach ...
    • X-ray diffraction, cements and environment, three worlds in one 

      Zea-Garcia, Jesus D.; Gomez-de-la-Torre, Maria de los Angeles; Santacruz-Cruz, Maria Isabel; Londono-Zuluaga, Diana; García-Maté, Marta; [et al.] (2017-12-13)
      This keynote lecture will be focused on the strategies for reducing CO2 emissions in the cement production. Concretely, the production of ecocements with optimised formulations that yield reductions in CO2 emissions of up ...
    • X-RAY microtomographic studies of LC3 and related binders 

      Bernal, I.M.R.; Cuesta, A; Santacruz, I; De la Torre, A.G.; García-Aranda, Miguel Ángel; [et al.] (EPFL, 2022-07)
      LC3 type cements do not need introduction in this conference, neither the importance of studying the microporosity features (amount, size(s), connectivities, etc.). However, analysing the porosity in an accurate, ...
    • X-ray powder diffraction applied to cement related phases: in-situ and high resolution applications 

      Cuesta-Garcia, Ana Maria; Álvarez-Pinazo, Gema; Gomez-de-la-Torre, Maria de los Angeles; Santacruz-Cruz, Maria Isabel; Peral, Inma; [et al.] (2014-07-03)
      XRPD is a powerful tool for material characterization in general, and for in-situ studies of chemical processes in particular. The use of an intense X-ray source, .i.e. synchrotron X-rays, coupled with fast X-ray detection ...
    • X-Ray powder diffraction laboratory @ University of Málaga (UMA) 

      Gomez-de-la-Torre, Maria de los Angeles; Cabeza-Diaz, Aurelio; García-Aranda, Miguel Ángel; León-Reina, Laura (2016-06-27)
      X-Ray Powder Diffraction (XRPD) laboratory is a facility placed at Servicios Centrales de apoyo a la Investigación (SCAI) at University of Malaga (UMA) http://www.scai.uma.es/. This facility has three XRPD diffractometers ...
    • γ-Al2O3 as acid catalyst for dehydration of glucose to 5-hydroxymethylfurfural 

      Fúnez Núñez, Inmaculada; García Sancho, Cristina; Santamaria-Gonzalez, Jose; Merida-Robles, Josefa Maria; Moreno-Tost, Ramon; [et al.] (2015-10-19)
      Currently, the search and development of sustainable feedstocks for chemicals derived from petrol have gained worldwide attraction because of the instability of the price of crude oil, the reduction of fossil oil reserves, ...