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    •   RIUMA Principal
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    • Química Inorgánica, Cristalografía y Mineralografía - (QICM)
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    Mostrando ítems 1-20 de 149

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      • 2D Corrugated Magnesium Carboxyphosphonate Materials: Topotactic Transformations and Interlayer “Decoration” with Ammonia 

        Demadis, Konstantinos D.; Famelis, Nikos; Cabeza-Diaz, AurelioAutoridad Universidad de Málaga; G. Aranda, Miguel Ángel; Perez-Colodrero, Rosario MercedesAutoridad Universidad de Málaga; Infantes-Molina, AntoniaAutoridad Universidad de Málaga[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 ...
      • 4D nanoimaging of early age cement hydration. 

        Shirani, Shiva; Cuesta-Garcia, Ana Maria; Morales-Cantero, Alejandro; Santacruz-Cruz, Maria IsabelAutoridad Universidad de Málaga; Diaz, Ana; Trtik, Pavel; Holler, Mirko; Rack, Alexander; Lukic, Bratislav; Brun, Emmanuel; Ruiz Salcedo, Inés; García-Aranda, Miguel ÁngelAutoridad Universidad de Málaga[et al.] (Springer Nature, 2023-05-08)
        Despite a century of research, our understanding of cement dissolution and precipitation processes at early ages is very limited. This is due to the lack of methods that can image these processes with enough spatial ...
      • A Self-Folding Polymer Film Based on Swelling Metal–Organic Frameworks 

        Troyano, Javier; Carné-Sánchez, Arnau; Pérez-Carvajal, Javier; León-Reina, Laura; Imaz, Inhar; Cabeza-Diaz, AurelioAutoridad Universidad de Málaga; Maspoch, Daniel[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 ÁngelAutoridad Universidad de Málaga (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 IsabelAutoridad Universidad de Málaga; Vallcorba, Oriol; Gomez-de-la-Torre, Maria de los AngelesAutoridad Universidad de Málaga; García-Aranda, Miguel ÁngelAutoridad Universidad de Málaga[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 ÁngelAutoridad Universidad de Málaga; Gomez-de-la-Torre, Maria de los AngelesAutoridad Universidad de Málaga; Santacruz-Cruz, Maria IsabelAutoridad Universidad de Málaga (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 ...
      • Alternative non-Portland binders 

        Hanein, Theodore; Gomez-de-la-Torre, Maria de los AngelesAutoridad Universidad de Málaga; Zhang, Zuhua; Provis, John L. (Mineralogical Society of America, 2022)
        A background on non-Portland cementitious binders is presented, followed by a review of the key alternative binders that are currently of interest. The mineralogy of these cements is described, along with phases present ...
      • 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 AngelesAutoridad Universidad de Málaga; Santacruz-Cruz, Maria IsabelAutoridad Universidad de Málaga; Turrillas, Xavier; García-Aranda, Miguel ÁngelAutoridad Universidad de Málaga[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 AngelesAutoridad Universidad de Málaga; Álvarez-Pinazo, Gema; Ordónez, Luis M; Gateshki, Milen; García-Aranda, Miguel ÁngelAutoridad Universidad de Málaga[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 IsabelAutoridad Universidad de Málaga; Cuesta-Garcia, Ana Maria; León-Reina, Laura; García-Aranda, Miguel ÁngelAutoridad Universidad de Málaga; Baco, Isabelle; Morin, Vincent; Walenta, Günther; Gartner, Ellis; Gomez-de-la-Torre, Maria de los AngelesAutoridad Universidad de Málaga[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; Perez-Colodrero, Rosario MercedesAutoridad Universidad de Málaga; Wu, Shuang; Hix, Gary B.; Zakharova, Julia; Zhang, Hao[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 AngelesAutoridad Universidad de Málaga; 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 ÁngelAutoridad Universidad de Málaga (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 AngelesAutoridad Universidad de Málaga; Cuesta-Garcia, Ana Maria; Fraga-López, Edmundo; Shirani, Shiva; García-Aranda, Miguel ÁngelAutoridad Universidad de Málaga[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; Rodriguez-Castellon, EnriqueAutoridad Universidad de Málaga; Infantes-Molina, AntoniaAutoridad Universidad de Málaga[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-Vazquez, Jose ManuelAutoridad Universidad de Málaga; Losilla, Enrique R.; Marrero-López, DavidAutoridad Universidad de Málaga (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 

        Perez-Colodrero, Rosario MercedesAutoridad Universidad de Málaga; Cabeza-Diaz, AurelioAutoridad Universidad de Málaga; Olivera-Pastor, PascualAutoridad Universidad de Málaga; Infantes-Molina, AntoniaAutoridad Universidad de Málaga; Barouda, Eleni; Demadis, Konstantinos D.; G. Aranda, Miguel Ángel[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-Garcia, Ana Maria; Gomez-de-la-Torre, Maria de los AngelesAutoridad Universidad de Málaga; Santacruz-Cruz, Maria IsabelAutoridad Universidad de Málaga; Mazanec, Oliver; Borralleras, Pere; Weldert, Kai S.; Gastaldi, Daniela; Canonico, Fulvio; García-Aranda, Miguel ÁngelAutoridad Universidad de Málaga[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 AngelesAutoridad Universidad de Málaga; Diaz, Ana; Trtrik, Pavel; Holler, Mirko; García-Aranda, Miguel ÁngelAutoridad Universidad de Málaga[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 ...
        REPOSITORIO INSTITUCIONAL UNIVERSIDAD DE MÁLAGA
        REPOSITORIO INSTITUCIONAL UNIVERSIDAD DE MÁLAGA
         

         

        REPOSITORIO INSTITUCIONAL UNIVERSIDAD DE MÁLAGA
        REPOSITORIO INSTITUCIONAL UNIVERSIDAD DE MÁLAGA