• Rheological and hydration characterization of calcium sulfoaluminate cement pastes 

      García-Maté, Marta; Santacruz-Cruz, Maria Isabel; Gomez-de-la-Torre, Maria de los Angeles; León-Reina, Laura; García-Aranda, Miguel Ángel (2015-05-14)
      Calcium sulfoaluminate (CSA) cements are currently receiving a lot of attention because their manufacture produces less CO2 than ordinary Portland cement (OPC). However, it is essential to understand all parameters which ...
    • Rietveld quantitative phase analyses of SRM 2686a: a standard Portland clinker 

      García-Maté, Marta; Álvarez-Pinazo, Gema; León-Reina, Laura; Gomez-de-la-Torre, Maria de los Angeles (2018-10-03)
      SRM 2686a is a NIST reference Portland clinker with reported mineralogical analysis from powder diffraction and electron microscopy. This sample is used in ASTM C1365 test method for Rietveld quantitative phase analysis ...
    • Rietveld Quantitative Phase Analysis of Oil Well Cement: in Situ Hydration Study at 150 Bars and 150 °C 

      Fraga, Edmundo; Cuesta-Garcia, Ana Maria; Zea-Garcia, Jesus D.; Gomez-de-la-Torre, Maria de los Angeles; Yañez-Casal, Armando; [et al.] (MDPI - Publisher of Open Access Journals, 2019-06)
      Oil and gas well cements are multimineral materials that hydrate under high pressure and temperature. Their overall reactivity at early ages is studied by a number of techniques including through the use of the consistometer. ...
    • Rietveld Quantitative Phase Analysis of OPC Clinkers, Cements and Hydration Products 

      García-Aranda, Miguel Ángel; Gomez-de-la-Torre, Maria de los Angeles; León-Reina, Laura (Mineralogical Society of America, 2012)
    • Rietveld quantitative phase analysis of Yeelimite-containing cements 

      Álvarez-Pinazo, Gema; Cuesta-Garcia, Ana Maria; García-Maté, Marta; Santacruz-Cruz, Maria Isabel; Losilla, Enrique R.; [et al.] (Elsevier, 2012-03-26)
      Yeelimite-containing cements are attracting attention for their tailored properties. Calcium sulfoaluminate, CSA, cements have high contents of Yeelimite and they are used for special applications. Belite calcium sulfoaluminate, ...
    • Rietveld quantitative phase analysis of yeelimite-containing cements 

      Álvarez-Pinazo, Gema; Cuesta-Garcia, Ana Maria; García-Maté, Marta; Santacruz-Cruz, Maria Isabel; Losilla, Enrique R.; [et al.] (Karen Scrivener, 2012)
      Yeelimite-containing cements are attracting attention for their tailored properties. Calcium sulfoaluminate, CSA, cements have high contents of Yeelimite and they are used for special applications. Belite calcium sulfoaluminate, ...
    • Rietveld quantitative phase analysis with molybdenum radiation 

      Cuesta-Garcia, Ana Maria; Álvarez-Pinazo, Gema; Garcia-Mate, Marta; Santacruz-Cruz, Maria Isabel; García-Aranda, Miguel Ángel; [et al.] (Cambridge Core, 2014)
      Building materials are very complex samples of worldwide importance; hence quantitative knowledge of their mineralogical composition is necessary to predict performances. Rietveld quantitative phase analysis (RQPA) allows ...
    • Stability and electrochemical performance of nanostructured La2CuO4þd cathodes 

      Dos Santos-Gómez, Lucía; Porras-Vázquez, José Manuel; Hurtado, Javier; Losilla, E.R.; Marrero-López, David (Elsevier, 2019-02-21)
      La2CuO4þd cathode layers are prepared by spray-pyrolysis deposition and their structural, microstructural and electrical properties are compared with those of submicrometric powders obtained from freeze-dried precursors. ...
    • Structural Mapping and Framework Interconversions in 1D, 2D, and 3D Divalent Metal R,S-Hydroxyphosphonoacetate Hybrids 

      Colodrero, Rosario M. P.; Olivera-Pastor, Pascual; Cabeza-Diaz, Aurelio; Papadaki, M.; Demadis, Konstantinos D.; [et al.] (American Chemical Society, 2009-12-16)
      Reactions of divalent cations (Mg2þ, Co2þ, Ni2þ, and Zn2þ) with R,S-hydroxyphosphonoacetic acid (HPAA) in aqueous solutions (pH values ranging 1.0-4.0) yielded a range of crystalline hydrated M-HPAA hybrids. Onedimensional ...
    • Structural variability in M2+ 2-hydroxyphosphonoacetate moderate proton conductors 

      Pérez Colodrero, Rosario Mercedes; Ruiz Salcedo, Inés; Bazaga García, Montse; Milla-Pérez, Diego F.; Durán-Martín, Jonatan D.; [et al.] (De Gruyter, 2017)
      The structural variability of two series of Mg2+- and Zn2+- 2-hydroxyphosphonoacetates have been studied in the range of 25–80 °C and 95 % relative humidity in order to correlate the structure with the proton conductivity ...
    • Structural Variability in Multifunctional Metal Xylenediaminetetraphosphonate Hybrids 

      Colodrero, Rosario M.P.; Angeli, Giasemi K.; Bazaga García, Montse; Olivera-Pastor, Pascual; Villemin, Didier; [et al.] (American Chemical Society, 2013-07-24)
      Two new families of divalent metal hybrid derivatives from the aromatic tetraphosphonic acids 1,4- and 1,3-bis(aminomethyl)benzene-N,N′-bis(methylenephosphonic acid), (H2O3PCH2)2−N−CH2C6H4CH2−N(CH2PO3H2)2 (designated herein ...
    • Structure of stratlingite and effect of hydration methodology on microstructure 

      Santacruz-Cruz, Maria Isabel; Gomez-de-la-Torre, Maria de los Angeles; Álvarez-Pinazo, Gema; Cabeza-Diaz, Aurelio; Cuesta-Garcia, Ana Maria; [et al.] (ICE publishing, 2015)
      Stratlingite, Ca4Al2(OH)12[AlSi(OH)8]2•2H2O, is an AFm phase which appears as hydration product of aluminum-rich cements. These binders may be calcium aluminate cements, calcium sulfoaluminate cements and also Belite Calcium ...
    • Structure, Atomistic Simulations, and Phase Transition of Stoichiometric Yeelimite 

      Cuesta-Garcia, Ana Maria; Gomez-de-la-Torre, Maria de los Angeles; Losilla, Enrique R.; Peterson, Vanessa K.; Rejmak, Pawel; [et al.] (ACS publications, 2013)
      ABSTRACT: Yeelimite, Ca4[Al6O12]SO4, is outstanding as an aluminate sodalite, being the framework of these type of materials flexible and dependent on ion sizes and anion ordering/disordering. On the other hand, yeelimite ...
    • Synchrotron Pair Distribution Function analyses of Ye’elimite-based pastes 

      Cuesta-Garcia, Ana Maria; García-Aranda, Miguel Ángel; Santacruz-Cruz, Maria Isabel; Gomez-de-la-Torre, Maria de los Angeles; Zea-Garcia, Jesus D. (2018-10-15)
      The study of nanocrystalline phase atomic ordering is intrinsically complicated. The presence of additional crystalline phase(s) exacerbates this challenge. Here, we use the synchrotron pair distribution function (PDF) to ...
    • Synchrotron Radiation Pair Distribution Function Analysis of Gels in Cements 

      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.] (MDPI, 2017)
      The analysis of atomic ordering in a nanocrystalline phase with small particle sizes, below 5 nm, is intrinsically complicated because of the lack of long-range order. Furthermore, the presence of additional crystalline ...
    • Synthesis and Electrochemical properties of metal(II)- carboxyethylphenylphosphinates 

      Bazaga García, Montse; Vílchez-Cózar, Álvaro; Maranescu, Bianca; Olivera-Pastor, Pascual; Marganovici, Marko; [et al.] (Royal Society of Chemistry, 2021)
      We report herein the synthesis, structural characterization and electrocatalytic properties of three new coordination polymers, resulting from the combination of divalent metal (Ca2+, Cd2+ or Co2+) salts with (2-carboxy ...
    • Synthesis and structural characterization of 2-D layered copper(II) styrylphosphonate coordination polymers 

      Maranescu, Bianca; Visa, Aurelia; Ilia, Gheorghe; Simon, Zeno; Demadis, Konstantinos D.; [et al.] (Taylor & Francis, 2014-04-11)
      We report the synthesis, physicochemical characterization, and crystal structure of Cu-SP (SP = styrylphosphonic acid, H2O3PCH=CH2(C6H5)), the first reported example of a metal derivative of SP. The starting SP acid was ...
    • Synthesis and structural characterization of homochiral 2D coordination polymers of zinc and copper with conformationally flexible ditopic imidazolium-based dicarboxylate ligands 

      Nicasio, Antonio I.; Montilla, Francisco; Álvarez, Eleuterio; Colodrero, Rosario M.P.; Galindo, Agustín (The Royal Society of Chemistry, 2016-11-30)
      Different novel coordination polymers containing zinc, 1–4, and copper, 5–8, metals, connected via chiral imidazolium-based dicarboxylate ligands, [LR]−, were isolated by reaction between zinc acetate or copper acetate ...
    • Tailored setting times with high compressive strengths in bassanite calcium sulfoaluminate eco-cements 

      García-Maté, Marta; Londono-Zuluaga, Diana; Gomez-de-la-Torre, Maria de los Angeles; Losilla, Enrique R.; Cabeza-Diaz, Aurelio; [et al.] (Elsevier, 2016-09)
      This work deals with the hydration of a calcium sulfoaluminate (CSA) eco-cement prepared with bassanite and different additives (type and content) at a fixed water/CSA ratio of 0.5. Pastes prepared with bassanite show high ...
    • Three-Component Copper-Phosphonate-Auxiliary Ligand Systems: Proton Conductors and Efficient Catalysts in Mild Oxidative Functionalization of Cycloalkanes 

      Armakola, Eirini; Pérez Colodrero, Rosario Mercedes; Bazaga García, Montse; Ruiz Salcedo, Inés; Choquesillo-Lazarte, Duane; [et al.] (ACS publications, 2018-08-13)
      The synthesis, structural characterization, topological analysis, proton conductivity, and catalytic properties are reported of two Cu(II)-based compounds, namely a dinuclear Cu(II) complex [Cu2(μ-VPA)2(phen)2(H2O)2]· 8H2O ...