• Structural Landscape and Proton Conduction of Lanthanide 5-(Dihydroxyphosphoryl)isophthalates 

  Salcedo, Inés R.; Bazaga-García, Montse; Pérez-Colodrero, Rosario Mercedes; Vílchez-Cózar, Álvaro; Cañamero-Cebrián, Fernando; Olivera-Pastor, Pascual; Zareba, Jan K.; Cabeza-Díaz, Aurelio[et al.] (ACS Publications, 2024)

  Metal phosphonate-carboxylate compounds repre-sent a promising class of materials for proton conductionapplications. This study investigates the structural, thermal, andproton conduction properties of three groups of ...

• Advanced 3D nanoimaging of cement paste hydration using synchrotron Xray ptychographic tomography 

  Shirani, Shiva; Cuesta, Ana; Santacruz-Cruz, María Isabel; Gómez-de-la-Torre, María de los Ángeles; Diaz, Ana; Trtik, Pavel; Holler, Mirko; García-Aranda, Miguel Ángel[et al.] (2024-06-25)

  Hydration of Portland cements (PC) is a complex phenomenon caused by the presence of multiple components with multi-length scale variability. To investigate this complicated process, state-of-theart 3D nanoimaging ...

• AUSE PhD Award: Advanced Quantitative Synchrotron X-ray Imaging of Cement Micro- and Meso- Structures 

  Shirani Tak Abi, Shiva (ALBA Synchrotron, 2024-09-03)

  This research includes observations on hydration kinetics, microstructural changes and the effect of curing temperatures on cement properties. It also investigates the development of innovative methods for measuring cement ...

• Highly Active Nickel (II) Oxide-Supported Cerium Oxide Catalysts for Valorization of Glycerol into Oxygenated Fuel Additives. 

  Appaturi, Jimmy Nelson; Maireles-Torres, Pedro Jesús; Alomar, Taghrid S.; AlMasoud, Najla; El-Bahy, Zeinhom M.; Tau Chuan, Ling; Ng, Eng-Poh[et al.] (MDPI, 2023-06-29)

  Acetylation of glycerol to yield monoacetin (MAT), diacetin (DAT), and triacetin (TAT) over NiO-supported CeO2 (xNiO/CeO2) catalysts is reported. The catalysts were synthesized utilizing a sol-gel technique, whereby ...

• Reduction of Typical Diesel NOx Emissions by SCR-NH3 Using Metal-Exchanged Natural Zeolite and SBA-15 Catalysts. 

  Alcantara, P.M.P.; Moura de Oliveira, Mona Lisa; Santiago de Araújo, Jesuína Cássia; Dos Santos Araújo, Rinaldo; Chaves de Lima, Rita Karolinny; Bueno, André Valente; Vieira da Silva, Maria Eugênia; Costa Rocha, Paulo Alexandre; Rodríguez-Castellón, Enrique[et al.] (MDPI, 2023-06-30)

  In this work, the catalytic performance of clinoptilolite (CLIN) and SBA-15 catalysts, doped with Fe and Cu, was evaluated in the selective catalytic reduction of NO using NH3 as a reducing agent (SCR-NH3). Both Cu-CLIN ...

• Multimodal study of unaltered cement hydrating pastes: combined high-energy laboratory powder diffraction and microtomography. 

  Fernández-Sánchez, Jaime; Cuesta, Ana; Shirani, Shiva; Koufany, Imane; Gómez-de-la-Torre, María de los Ángeles; Santacruz-Cruz, María Isabel; Salcedo, Inés R.; León-Reina, Laura; García-Aranda, Miguel Ángel[et al.] (2024)

  Background: The study of the hydration pathways of Portland cement (PC) and cement blends presents significant challenges due to their multiphase nature and varying fineness. Quantifying the dissolution of initial crystalline ...

• 4D nanoimaging of Portland cement hydration. 

  Shirani, Shiva; Cuesta, Ana; Díaz, Ana; Trtik, Pavel; Holler, Mirko; Rack, Alexander; Lukic, Bratislav; Brun, Emmanuel; García-Aranda, Miguel Ángel[et al.] (2024)

  Portland cements are environmentally contentious, accounting for ≈8% of the anthropogenic CO2 emissions. The understanding of the cement hydration reactions (dissolution and precipitation processes) is important to contribute ...

• X-ray near-field ptychographic nanoimaging of cement pastes 

  Shirani, Shiva; Cuesta, Ana; Santacruz-Cruz, María Isabel; Torre, Ángeles G. de la; Díaz, Ana; Trtik, Pavel; Holler, Mirko; García-Aranda, Miguel Ángel[et al.] (Elsevier, 2024)

  The hydration processes of Portland cements (PC) and blends are complicated as there are many components with great heterogeneity at different length scales. Thus, 3D nanoimaging techniques with high spatial resolution and ...

• Microwave-assisted acid treatment for the mineral transformation of chrysotile as an alternative for asbestos waste management 

  Essih, Salima; Pardo, Laura; Cecilia-Buenestado, Juan Antonio; Dos-Santos-Gómez, Lucía; Pérez-Colodrero, Rosario Mercedes; Pozo, Manuel; Calero, Gustavo; Franco-Duro, Francisco Ignacio[et al.] (Springer, 2024-07-18)

  In this work, the efect of microwaveassisted acid treatments on the morphological and crystallochemical characteristics of chrysotile fbers is investigated. A low concentration of nitric acid (0.2 N) is used to remove ...

• Mix and measure II: joint high-energy laboratory powder diffraction and microtomography for cement hydration studies 

  Fernández-Sánchez, Jaime; Cuesta, Ana; Shirani, Shiva; Redondo-Soto, Cinthya; Gómez-de-la-Torre, María de los Ángeles; Santacruz-Cruz, María Isabel; Salcedo, Inés R.; León-Reina, Laura; García-Aranda, Miguel Ángel[et al.] (A. H. Liu, HPSTAR and Harbin Institute of Technology, People's Republic of China, 2024)

• Mix and measure II: joint high-energy laboratory powder diffraction and microtomography for cement hydration studies 

  Fernández-Sánchez, Jaime; Cuesta, Ana; Shirani, Shiva; Redondo-Soto, Cinthya; Torre, Ángeles G. de la; Santacruz-Cruz, María Isabel; Salcedo, Inés R.; León-Reina, Laura; García-Aranda, Miguel Ángel[et al.] (Wiley, 2024)

  Portland cements (PCs) and cement blends are multiphase materials of different fineness, and quantitatively analysing their hydration pathways is very chal- lenging. The dissolution (hydration) of the initial crystalline ...

• Técnicas de caracterización avanzadas para el estudio de pastas de cementos. 

  Cuesta-García, Ana María (2024)

  Los cementos son materiales multifásicos, así que es necesario la utilización de diferentes técnicas analíticas para comprender las reacciones de hidratación que se producen. La química de hidratación de los cementos es ...

• Uso conjunto de difracción de rayos X de polvo y microtomografía de laboratorio en la hidratación del cemento Portland. 

  Fernández-Sánchez, Jaime; Cuesta-García, Ana María; Shirani, Shiva; Redondo-Soto, Cinthya; Gómez-de-la-Torre, María de los Ángeles; Santacruz-Cruz, María Isabel; León-Reina, Laura; Salcedo, Inés R.; García-Aranda, Miguel Ángel[et al.] (2024)

  Para estudiar la hidratación de los cementos de manera precisa y robusta, estamos desarrollando un enfoque innovador basado en medidas in situ de pastas, evitando así cualquier alteración de las mismas. Utilizamos la ...

• Characterisation of SCMs using the R3 test for low carbon cements. 

  Koufany, Imane; Redondo-Soto, Cinthya; Cuesta-García, Ana María; Santacruz-Cruz, María Isabel; Rodríguez-Ruiz, María Dolores; García-Aranda, Miguel Ángel; Gómez-de-la-Torre, María de los Ángeles[et al.] (2024)

  The cement industry is working to reduce its environmental impact by replacing clinker with supplementary cementitious materials (SCMs), including pozzolanic materials. This study examines three types of pozzolanic materials: ...

• Mejoras en las resistencias mecánicas de cementos con bajo contenido de clínker. 

  Morales-Cantero, Alejandro; Vallina, Diego; Gómez-de-la-Torre, María de los Ángeles; Cuesta, Ana; Santacruz-Cruz, María Isabel; García-Aranda, Miguel Ángel[et al.] (2024)

  Los cementos con arcilla calcinada y piedra caliza, conocidos como LC³ (del inglés, Limestone calcined clay cement) permiten la reducción de las emisiones de CO₂ hasta en un 55%. Las proporciones de las sustituciones ...

• Design and optimization of self-assembled nanocomposite electrodes for SOFCs. 

  Dos-Santos-Gómez, Lucía; Zamudio-García, Javier; Caizán-Juanarena, Leire; Porras-Vázquez, José Manuel; Marrero-López, David (Elsevier, 2024-06-08)

  Nanocomposites exhibit improved electrochemical and mechanical properties compared to single-phase mate- rials, making them promising for the development of efficient and durable electrodes in solid oxide fuel cells (SOFCs). ...

• Cementos de baja huella de carbono con arcillas bentoníticas activadas. 

  Vallina, Diego; Rodríguez-Ruiz, María Dolores; Morales-Cantero, Alejandro; Santacruz-Cruz, María Isabel; Cuesta-García, Ana María; García-Aranda, Miguel Ángel; Gómez-de-la-Torre, María de los Ángeles[et al.] (2024)

  En este trabajo, se presenta una estrategia de caracterización de arcillas bentoníticas y su activación térmica para su uso como SCM en cementos de baja huella de carbono. Para ello, se presentará el estudio de dos ...

• Mechanochemistry through Extrusion: Opportunities for Nanomaterials Design and Catalysis in the Continuous Mode. 

  Trentin, Oscar; Polidoro, Daniele; Perosa, Alvise; Rodríguez-Castellón, Enrique; Rodríguez-Padrón, Daily; Selva, Maurizio[et al.] (MDPI, 2023-08-08)

  The potentialities of mechanochemistry trough extrusion have been investigated for the design of nanosized catalysts and their use in C-C bond-forming reactions. The mechanochemical approach proved successful for the ...

• Valorization of furfural to obtain high value-sdded products with ZrO2- and Al2O3-Pillared clays 

  Es Sih, Salima; Franco-Duro, Francisco Ignacio; García-Sancho, Cristina; García-Mateos, Francisco José; Rosas-Martínez, Juana María; Moreno-Tost, Ramón; Maireles-Torres, Pedro Jesús; Cecilia-Buenestado, Juan Antonio[et al.] (Springer, 2024)

  Two phyllosilicates (montmorillonite and saponite) have been selected as starting materials to synthesize ZrO2- and Al2O3-pillared clays by the insertion of polyoxocations and subsequent calcination. These pillared clays ...

• Zeolites synthesis from phyllosilicates and their performance for CO2 adsorption 

  Es Sih, Salima; Vilarrasa García, Enrique; De Azevedo, Diana Cristina Silva; Ballesteros-Plata, Daniel; Barroso-Martín, Isabel; Infantes-Molina, Antonia; Rodríguez-Castellón, Enrique; Franco-Duro, Francisco Ignacio; Cecilia-Buenestado, Juan Antonio[et al.] (Springer, 2024)

  Five phyllosilicates (kaolinite, montmorillonite, saponite, sepiolite and palygorskite) have been selected as starting materi- als for the synthesis of zeolites. Among them, kaolinite and montmorillonite display the lowest ...

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