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New directions in metal phosphonate and fhosphinate chemistry
Shearan, Stephen J.I.; Stock, Norbert; Emmerling, Franziska; Demel, Jan; Wright, Paul A.; Demadis, Konstantinos D.; Vassaki, Maria; Costantino, Ferdinando; Vivani, Riccardo; Sallard, Sébastien; Salcedo, Inés R.; Cabeza-Diaz, Aurelio
; Taddei, Marco[et al.] (MDPI www.mdpi.com/journal/crystals, 2019-05-24)
In September 2018, the First EuropeanWorkshop on Metal Phosphonates Chemistry brought together some prominent researchers in the field of metal phosphonates and phosphinates with the aim of discussing past and current ... -
NH3/H2O-mediated proton conductivity and photocatalytic behaviour of Fe(II)-hydroxyphosphonoacetate and M(II)-substituted derivatives
Salcedo, Inés R.; Bazaga-García, Montse; Cuesta-Garcia, Ana Maria; Ramirez-Losilla, Enrique; Demadis, Konstantinos D.; Olivera-Pastor, Pascual; Perez-Colodrero, Rosario Mercedes; Cabeza-Diaz, Aurelio[et al.] (The Royal Society of Chemistry, 2019-12-27)
Synthesis redesign and derivatisation of Fe(II)-hydroxyphosphonoacetate, incorporating different ammonia loads and M(II) isomorphic substitutions (M = Mn, Co and Zn), have been implemented. The NH3 adsorption led to materials ... -
Ni-Doped Ordered Nanoporous Carbon Prepared from Chestnut Wood Tannins for the Removal and Photocatalytic Degradation of Methylene Blue
Bello, Ruby; Rodríguez Aguado, Elena; Smith, Victoria A.; Grachev, Dmitry; Rodriguez-Castellon, Enrique; Bashkova, Svetlana[et al.] (IOAP-MPDI, 2022-05-10)
In this work, Ni-doped ordered nanoporous carbon was prepared by a simple and green one-pot solvent evaporation induced self-assembly process, where chestnut wood tannins were used as a precursor, Pluronic® F-127 as a soft ... -
On the early hydration of cubic ye’elimite: New insights from time-resolved in situ MAS NMR spectroscopy
(Elsevier, 2022-12-02)Two polymorphs of ye’elimite are known to exist in calcium sulfoaluminate cements, namely, orthorhombic (iron free), C4A3$ and cubic/pseudo-cubic (iron incorporated), C4A3-xFx$ forms. The very early hydration behaviour ... -
Oxidation of lignocellulosic platform molecules to value-added chemicals using heterogeneous catalytic technologies
Arias, Pedro Luis; Cecilia-Buenestado, Juan Antonio; Gandarias, Iñaki; Iglesias, Jose; López Granados, Manuel; Mariscal, Rafael; Morales, Gabriel; Moreno-Tost, Ramon; Maireles-Torres, Pedro Jesús[et al.] (The Royal Society of Chemistry, 2020-04-10)
Currently, much attention is being paid to the development of sustainable catalytic processes for the production of chemicals (biofuels, bioproducts, and so on) from lignocellulosic biomass. This minireview pursues to give ... -
Oxidative Condensation of Furfural with Ethanol Using Pd-Based Catalysts: Influence of the Support
Cecilia-Buenestado, Juan Antonio; Jiménez-Gómez, Carmen Pilar; Torres-Bujalance, Virginia; Garcia-Sancho, Cristina; Moreno-Tost, Ramon; Maireles-Torres, Pedro Jesús[et al.] (MDPI, 2020-11-12)
PdO nanoparticles were deposited on several supports (β-zeolite, Al2O3, Fe2O3, MgO, and SiO2), which displayed different crystallinity, textural properties, and amount of acid and basic sites. These catalysts were characterized ... -
Phase and microstructure evolutions in LC3 binders by multi-technique approach including synchrotron microtomography
Bernal, Isabel M.R.; Shirani, Shiva; Cuesta-Garcia, Ana Maria; Santacruz-Cruz, Maria Isabel; García-Aranda, Miguel Ángel (Elsevier, 2021-06-19)
Limestone Calcined Clay Cements, LC3, are attracting a lot of attention as it is possible to reduce the clinker factor by 50%, which means a cement CO2 footprint reduction of 40%. This is compatible with maintaining the ... -
Phase Transformation Dynamics in Sulfate-Loaded Lanthanide Triphosphonates. Proton Conductivity and Application as Fillers in PEMFCs
Salcedo, Inés R.; Perez-Colodrero, Rosario Mercedes; Bazaga-García, Montse; López González, María del Mar; del Río, Carmen; Xanthopoulos, Konstantinos; Demadis, Konstantinos D.; Hix, Gary B.; Furasova, Aleksandra D.; Choquesillo-Lazarte, Duane; Olivera-Pastor, Pascual; Cabeza-Diaz, Aurelio[et al.] (ACS Publications. American Chemical Society, 2021)
Phase transformation dynamics and proton conduction properties are reported for cationic layer-featured coordination polymers derived from the combination of lanthanide ions (Ln3+) with nitrilo-tris(methylenephosphonic ... -
Phase-selective degree of hydration at setting: An in situ synchrotron diffraction study
Morales-Cantero, Alejandro; Cuesta, Ana; Santacruz-Cruz, Maria Isabel; García-Aranda, Miguel Ángel; Gomez-de-la-Torre, Maria de los Angeles (Elsevier, 2022-03)
Setting of Portland cements is still not well understood. Previous studies used techniques that analyse the pastes as a whole to correlate setting times with degree of hydration. Here, in-situ synchrotron X-ray diffraction ... -
Phosphonate Decomposition-Induced Polyoxomolybdate Dumbbell-Type Cluster Formation: Structural Analysis, Proton Conduction, and Catalytic Sulfoxide Reduction
Armakola, Eirini; Salcedo, Inés R.; Bazaga-García, Montse; Mezei, Gellert; Cabeza-Diaz, Aurelio; Fernandes, Tiago A.; Kirillov, Alexander M.; Demadis, Konstantinos D.[et al.] (ACS publications, 2019-08-12)
The reaction of MoO4^2− with a number of phosphonic acids [bis-(phosphonomethyl)glycine, R,S-hydroxyphosphonoacetic acid, 1-hydroxyethane-1,1-diphosphonic acid, phenylphosphonic acid, aminotris(methylene phosphonic acid), ... -
Photodegradation of Phenol over a Hybrid Organo-Inorganic Material: Iron(II) Hydroxyphosphonoacetate
Bazaga-García, Montse; Cabeza-Diaz, Aurelio; Olivera-Pastor, Pascual; Santacruz-Cruz, Maria Isabel; Perez-Colodrero, Rosario Mercedes; García-Aranda, Miguel Ángel[et al.] (American Chemical Society, 2012-06-20)
Water treatment is a hot topic, and it will become much more important in the decades ahead. Advanced oxidation processes are being increasingly used for organic contaminant removal, for example using photo-Fenton reactions. ... -
Porous SiO2 Nanospheres Modified with ZrO2 and Their Use in One- Pot Catalytic Processes to Obtain Value-Added Chemicals from Furfural
Maderuelo Solera, Rocío; Richter, Stefan; Jiménez-Gómez, Carmen Pilar; Garcia-Sancho, Cristina; Garcia-Mateos, Francisco Jose; Rosas-Martinez, Juana Maria; Moreno-Tost, Ramon; Cecilia-Buenestado, Juan Antonio; Maireles-Torres, Pedro Jesús[et al.] (American Chemical Society, 2021-11-26)
Porous SiO2 nanospheres have been modified with different proportion of ZrO2 to obtain catalysts with Si/Zr molar ratio between 2.5 and 30. These materials were characterized by X-ray diffraction, transmission electron ... -
Portland and belite cement hydration acceleration by C-S-H seeds with variable w/c ratios
Mazanec, Oliver; Borralleras, Pere; Weldert, Kai S.; Gastaldi, Daniela; Canonico, Fulvio; Morales-Cantero, Alejandro; Cuesta-Garcia, Ana Maria; Gomez-de-la-Torre, Maria de los Angeles; García-Aranda, Miguel Ángel[et al.] (Materials, 2022)
The acceleration of very early age cement hydration by C-S-H seeding is getting attention from scholars and field applications because the enhanced early age features do not compromise later age performances. This acceleration ... -
Portland and Belite Cement Hydration Acceleration by C-S-H Seeds with Variable w/c Ratios
Morales-Cantero, Alejandro; Cuesta, Ana; Gomez-de-la-Torre, Maria de los Angeles; Mazanec, Oliver; Borralleras, Pere; Weldert, Kai S.; Gastaldi, Daniela; Canonico, Fulvio; Aranda, Miguel A. G.[et al.] (IOAP-MPDI, 2002-05-16)
The acceleration of very early age cement hydration by C-S-H seeding is getting attention from scholars and field applications because the enhanced early age features do not compromise later age performances. This acceleration ... -
Processing and characterisation of standard and doped alite-belite-ye'elimite ecocement pastes and mortars
Zea-Garcia, Jesus D.; Gomez-de-la-Torre, Maria de los Angeles; García-Aranda, Miguel Ángel; Santacruz-Cruz, Maria Isabel (2020-02-26)
Here, we report the processing optimisation of two laboratory-prepared alite-belite-ye'elimite ecocements (standard and doped) that release to the atmosphere ~13% less CO2 than Portland Cement during fabrication. The ... -
Production of Biofuels by 5-Hydroxymethylfurfural Etherification Using Ion-Exchange Resins as Solid Acid Catalysts
Torres-Olea, Benjamín; Fúnez Núñez, Inmaculada; Garcia-Sancho, Cristina; Cecilia-Buenestado, Juan Antonio; Moreno-Tost, Ramon; Maireles-Torres, Pedro Jesús[et al.] (mdpi, 2020-11-09)
In this work, acidic ion-exchange resins with strong Brönsted sulphonic groups were assessed in the catalytic etherification of the platform molecule 5-(hydroxymethyl)furfural (HMF) to 5-(ethoxymethyl)furfural (EMF), a ... -
Properties and Applications of Metal Phosphates and Pyrophosphates as Proton Conductors
P. Colodrero, Rosario M.; Olivera-Pastor, Pascual; Cabeza-Diaz, Aurelio; Bazaga-García, Montse (MDPI, 2022-02-09)
We review the progress in metal phosphate structural chemistry focused on proton conductivity properties and applications. Attention is paid to structure–property relationships, which ultimately determine the potential ... -
Pseudo-cubic crystal structure and phase transition in doped ye'elimite
Cuesta-Garcia, Ana Maria; Gomez-de-la-Torre, Maria de los Angeles; Ramirez-Losilla, Enrique; Santacruz-Cruz, Maria Isabel; García-Aranda, Miguel Ángel (ACS publications, 2014)
Sodalites are tridimensional alumino-silicate materials containing cages where loosely bonded anions are located. Ye'elimite, Ca4[Al6O12]SO4, is outstanding as an aluminate sodalite with a flexible framework accepting ... -
Quantitative disentanglement of nanocrystalline phases in cement pastes by synchrotron ptychographic X-ray tomography
Cuesta-Garcia, Ana Maria; Gomez-de-la-Torre, Maria de los Angeles; Santacruz-Cruz, Maria Isabel; Diaz, Ana; Trtik, Pavel; Holler, Mirko; Lothenbach, Barbara; García-Aranda, Miguel Ángel[et al.] (IUCr, 2019)
Mortars and concretes are ubiquitous materials with very complex hierarchical microstructures. To fully understand their main properties and to decrease their CO2 footprint, a sound description of their spatially resolved ... -
Reactive belite stabilization mechanisms by boron-bearing dopants
Cuesta-Garcia, Ana Maria; Losilla, Enrique R.; García-Aranda, Miguel Ángel; Sanz, Jesús; Gomez-de-la-Torre, Maria de los Angeles (Elselvier, 2012-01-27)
Belite-rich cements hold promise for reduced energy consumption and CO2 emissions, but their use is hindered by the slow hydration rates of ordinary belites. This drawback may be overcome by activation of belite by doping. ...