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    •   RIUMA Principal
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    • Química Inorgánica, Cristalografía y Mineralografía - (QICM)
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      • 2D Corrugated Magnesium Carboxyphosphonate Materials: Topotactic Transformations and Interlayer “Decoration” with Ammonia 

        Demadis, Konstantinos D.; Famelis, Nikos; Cabeza-Diaz, Aurelio; G. Aranda, Miguel Ángel; Pérez Colodrero, Rosario M.; [et al.] (American Chemical Society, 2012-06-29)
        In this paper we report the synthesis and structural characterization of the 2D layered coordination polymer Mg(BPMGLY)(H2O)2 (BPMGLY = bis-phosphonomethylglycine, (HO3PCH2)2N(H)COO2−). The Mg ion is found in a slightly ...
      • A Self-Folding Polymer Film Based on Swelling Metal–Organic Frameworks 

        Troyano, Javier; Carné-Sánchez, Arnau; Pérez-Carvajal, Javier; León-Reina, Laura; Imaz, Inhar; [et al.] (Wiley-VCH Verlag GmbH & Co., 2018-10-23)
        Herein, we exploit the well-known swelling behaviour of metal–organic frameworks (MOFs) to create a selffolding polymer film. Namely, we show that incorporating crystals of the flexible MOF MIL-88A into a polyvinylidene ...
      • Accuracy in Cement Hydration Investigations: Combined X-ray Microtomography and Powder Diffraction Analyses 

        Salcedo, Inés R.; Cuesta-Garcia, Ana Maria; Shirani, Shiva; León-Reina, Laura; García-Aranda, Miguel Ángel (MDPI, 2021-11-17)
        Cement hydration is a very complex set of processes. The evolution of the crystalline phases during hydration can be accurately followed by X-ray powder diffraction data evaluated by the Rietveld method. However, accurate ...
      • Accuracy in Rietveld quantitative phase analysis: a comparative study of strictly monochromatic Mo and Cu radiations 

        León-Reina, Laura; García-Maté, Marta; Álvarez-Pinazo, Gema; Santacruz-Cruz, Maria Isabel; Vallcorba, Oriol; [et al.] (Willey online Library, 2016)
        This study reports 78 Rietveld quantitative phase analyses using Cu K 1, Mo K 1 and synchrotron radiations. Synchrotron powder diffraction has been used to validate the most challenging analyses. From the results for ...
      • Alite-belite-ye'elimite cements: Effect of dopants on the clinker phase composition and properties 

        Zea-Garcia, Jesus D.; García-Aranda, Miguel Ángel; Gomez-de-la-Torre, Maria de los Angeles; Santacruz-Cruz, Maria Isabel (2018-10-30)
        Clinkers with alite-belite-ye'elimite (ABY) are considered as eco-friendly cements. Clinkering (2 Kg) of two types of ABY clinkers was optimized: standard-ABY, with CaF2 and ZnO as dopants (32.6 wt% alite, 30.4 wt% β-C2S ...
      • Aluminum Hydroxide Gel Characterization within a Calcium Aluminate Cement Paste by Combined Pair Distribution Function and Rietveld Analyses 

        Cuesta-Garcia, Ana Maria; Ichikawa, Rodrigo U.; Londono-Zuluaga, Diana; Gomez-de-la-Torre, Maria de los Angeles; Santacruz-Cruz, Maria Isabel; [et al.] (Elsevier, 2017-06)
        There are many commercially important multiphase materials which contain amorphous phases, such as cement pastes, porcelains, glass-ceramics or pharmaceutical compounds. However, the analysis of amorphous phase(s) within ...
      • Aluminum-rich belite sulfoaluminate cements: clinkering and early age hydration 

        Martín-Sedeño, M. Carmen; Cuberos, Antonio J M; Gomez-de-la-Torre, Maria de los Angeles; Álvarez-Pinazo, Gema; Ordónez, Luis M; [et al.] (Elsevier, 2009)
        Belite sulfoaluminate (BSA) cements have been proposed as environmentally friendly building materials, as their production may release up to 35% less CO2 into the atmosphere when compared to ordinary Portland cements. ...
      • Amorphous determination in calcium sulfoaluminate materials by external and internal methods 

        García-Maté, Marta; Santacruz-Cruz, Maria Isabel; Cuesta-Garcia, Ana Maria; León-Reina, Laura; García-Aranda, Miguel Ángel; [et al.] (ICE Publishing, 2014)
        External standard methodology has been successfully applied to quantify the known amounts of amorphous component that are increasingly added to cement-related materials. The consistency and accuracy of the methodology were ...
      • Assessment of ATR-FTIR spectroscopy with multivariate analysis to investigate the binding mechanisms of Ag and TiO2 nanoparticles to Chelex®-100 or Metsorb™ for the DGT technique 

        Pouran, Hamid; Pérez Colodrero, Rosario M.; Wu, Shuang; Hix, Gary B.; Zakharova, Julia; [et al.] (The Royal Society of Chemistry, 2020-01-09)
        Studying nanomaterials' ecotoxicology is not new but there are still gaps in our understanding of their fate in the environment. A major challenge is lack of reliable tools to measure available concentrations of nanoparticles ...
      • Assessment of the quantitative accuracy of Rietveld/XRD analysis of crystalline and amorphous phases in fly ash 

        Zhao, Piqi; Liu, Xianping; Gomez-de-la-Torre, Maria de los Angeles; Lu, Lingchao; Sobolev, Konstantin (2017)
        An internal standard method based on Rietveld/XRD whole-pattern fitting analysis of fly ash is used to assess the quantitative accuracy to determine its crystalline and amorphous phases under various conditions such as ...
      • Belite cements and their activation 

        Cuesta-Garcia, Ana Maria; Ayuela, Andres; García-Aranda, Miguel Ángel (Elsevier, 2020-11)
        Belite cements, BCs, containing mainly belite, alite and calcium aluminates, are currently used as low heat cements. These binders produce high amounts of C–S–H gel and have very good durability properties which are reviewed. ...
      • Belite clinkers with increasing aluminium content: effect of calcium aluminates on calcium silicate hydration 

        Redondo-Soto, Cinthya; Gastaldi, Daniela; Irico, Sara; Canonico, Fulvio; Aranda, Miguel A.G. (Elsevier, 2022)
        Belite cements (BCs) could have advantages over Portland cements concerning durability, low heat development and the use of less demanding raw materials. The activation of BCs by sulfur addition at the clinkering stage and ...
      • Belite hydration at high temperature and pressure by in situ synchrotron powder diffraction 

        Morales-Cantero, Alejandro; Gomez-de-la-Torre, Maria de los Angeles; Cuesta-Garcia, Ana Maria; Fraga-López, Edmundo; Shirani, Shiva; [et al.] (2020-10-16)
        Portland cements are currently used as Oil‐Well‐Cements for the sheath between the metal casing and the borehole. At high pressures and temperatures, the resulting C-S-H gel(s) is partly unstable and it can react to give ...
      • Bimetallic Niobium-Based Catalysts Supported on SBA-15 for Hydrodeoxygenation of Anisole 

        Ballesteros Plata, Daniel; Barroso-Martín, Isabel; Medina Cervantes, Juan Andrés; Maciel, Carmen; Huirache-Acuña, Rafael; [et al.] (ACS, 2021-12-17)
        The effect of adding iron, cobalt or nickel to a prepared niobium-supported catalyst using mesoporous silica SBA-15 as a support was evaluated in the hydrodeoxygenation (HDO) reaction of anisole, chosen as a model compound ...
      • Boosting the Performance of La0.8Sr0.2MnO3-δ Electrodes by The Incorporation of Nanocomposite Active Layers 

        Zamudio-García, Javier; Caizán Juanarena, Leire; Porras-Vázquez, José M.; Losilla, Enrique R.; Marrero-López, David (Wiley, 2022-07-07)
        The use of active layers is a promising strategy to improve the properties of air electrodes for solid oxide fuel cells (SOFCs). In this work, La0.8Sr0.2MnO3-δ is combined with different oxide ion conductors Ce0.9Gd0.1O1.95, ...
      • “Breathing” in Adsorbate-Responsive Metal Tetraphosphonate Hybrid Materials 

        Pérez Colodrero, Rosario M.; Cabeza-Diaz, Aurelio; Olivera-Pastor, Pascual; Infantes-Molina, Antonia; Barouda, Eleni; [et al.] (Wiley-VCH Verlag GmbH&Co. KGaA, Weinheim, 2009-05-28)
        The structures of various layered calcium tetraphosphonates (CaH6DTMP; H8DTMP=hexamethyl- tetrakis(methylenephosphonic acid)), have been determined. Starting from CaH6DTMP·2H2O, thermal treatment and subsequent exposure ...
      • C-S-H seeding activation of Portland and Belite cements: An enlightening in situ synchrotron powder diffraction study 

        Morales-Cantero, Alejandro; Cuesta-García, Ana María; De la Torre, Angeles G.; Santacruz-Cruz, Maria Isabel; Mazanec, Oliver; [et al.] (Elsevier, 2022-11)
        C-S-H seeding in Portland cements is well known from basic scientific works and field applications. Moreover, this activation approach could be beneficial for low-CO2 cements under development where a general drawback is ...
      • Calcium aluminate cement conversion analysed by ptychographic nanotomography 

        Shirani, Shiva; Cuesta-Garcia, Ana Maria; Gomez-de-la-Torre, Maria de los Angeles; Diaz, Ana; Trtrik, Pavel; [et al.] (Elsevier, 2020-08-17)
        Calcium aluminate cements are used for special applications but are nowadays banned for general structural purposes due to the calcium aluminate hydrate conversion, that has led, for concretes fabricated with high water ...
      • Catalytic Activity of Mixed Al2O3-ZrO2 Oxides for Glucose Conversion into 5-Hydroxymethylfurfural 

        Torres-Olea, Benjamín; Mérida-Robles, Sandra; Garcia-Sancho, Cristina; Cecilia-Buenestado, Juan Antonio; Maireles-Torres, Pedro Jesús (MDPI, 2020-08-04)
        In the present work, a series of catalysts based on aluminum and zirconium oxides was studied for the transformation of glucose into 5-hydroxymethylfurfural. These catalysts were characterized by using experimental techniques, ...
      • Catalytic transfer hydrogenation of furfural to furfuryl alcohol over calcined MgFe hydrotalcites 

        Maderuelo Solera, Rocío; Lopez Asencio, Raquel; Cecilia-Buenestado, Juan Antonio; Jiménez-Gómez, Carmen Pilar; Garcia-Sancho, Cristina; [et al.] (Elsevier B.V., 2019-11-07)
        Catalytic transfer hydrogenation is an alternative catalytic approach for the reduction of carbonyl groups, instead of the use of dihydrogen gas. In this sense, a series of catalysts has been prepared by thermal treatment ...
        REPOSITORIO INSTITUCIONAL UNIVERSIDAD DE MÁLAGA
        REPOSITORIO INSTITUCIONAL UNIVERSIDAD DE MÁLAGA
         

         

        REPOSITORIO INSTITUCIONAL UNIVERSIDAD DE MÁLAGA
        REPOSITORIO INSTITUCIONAL UNIVERSIDAD DE MÁLAGA