QICM - Artículos
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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 ... -
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 ... -
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)
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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 ... -
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). ... -
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 ... -
Supplementary cementitious material based on calcined montmorillonite standards
Vallina, Diego; Rodríguez-Ruiz, María Dolores; Santacruz-Cruz, María Isabel; Cuesta, Ana; García-Aranda, Miguel Ángel; Gómez-de-la-Torre, María de los Ángeles[et al.] (Elsevier, 2024-05-03)
The most effective approach to mitigating the environmental impact of cement production is through the uti- lisation of pozzolanic materials to prepare blended cement. Calcined kaolinitic clays are one of the most promising ... -
Catalysts Based on Ni and Mg Oxides for the One-Pot Production of High Added-Value Products from Furfural.
Maderuelo-Solera, Rocío; Jiménez-Gómez, Carmen Pilar; Cecilia-Buenestado, Juan Antonio; García-Sancho, Cristina; Moreno-Tost, Ramón; Maireles-Torres, Pedro Jesús[et al.] (Wiley, 2024-03-31)
A family of NiO-MgO samples with Ni/Mg molar ratio between 0.10 and 0.30 are synthesized by co-precipitation and subsequent calcination. The characterization of the samples show the formation of a solid solution with a ... -
In situ synchrotron powder diffraction study of LC3 cement activation at very early ages by C-S-H nucleation seeding.
Morales-Cantero, Alejandro; Gómez-de-la-Torre, María de los Ángeles; Cuesta-García, Ana María; Santacruz-Cruz, María Isabel; Bernal, Isabel M.R.; Mazanec, Oliver; Dalla-Libera, Alessandro; Borralleras, Pere; García-Aranda, Miguel Ángel[et al.] (Elsevier, 2024-02-22)
Limestone Calcined Clay Cements, LC3, are being widely researched as low-carbon binders. However, the hydration reactions during the first day are key for their performances and they were not well known. Here, we employ ... -
Hydration Activation of Alite-Belite-Ye’elimite Cements by Doping with Boron
Zea-Garcia, Jesus D.; Sanfélix, Susana G.; Vallcorba, Oriol; García-Aranda, Miguel Ángel; Santacruz-Cruz, María Isabel; Gómez-de-la-Torre, María de los Ángeles[et al.] (2020)
The hydration behavior of two alite-belite-ye’elimite (ABY) cements has been studied. The production of these materials releases into atmosphere ∼17% less CO2 compared to Portland cement. The ABY cement contains alite, ... -
Evaluation of the ZrO2/Al2O3 system as catalysts in the catalytic transfer hydrogenation of furfural to obtain furfuryl alcohol
Jiménez Gómez, Carmen Pilar; Viar-Antuñano, N.; Cecilia-Buenestado, Juan Antonio; Moreno-Tost, Ramón; Mérida-Robles, Josefa María; Requies, Jesús M.; Maireles-Torres, Pedro Jesús[et al.] (Elsevier, 2021)
ZrO2, Al2O3 and ZrO2/Al2O3 with different Zr/Al molar ratio, have been synthesized by coprecipitation and subsequent calcination. The resulting catalysts were characterized by X-ray diffraction, transmission electron microscopy, ... -
Enhancing the Electrochemical Performance in Symmetrical Solid Oxide Cells through Nanoengineered Redox-Stable Electrodes with Exsolved Nanoparticles
Zamudio-García, Javier; Porras-Vázquez, José Manuel; Ramírez-Losilla, Enrique; Marrero-López, David (American Chemical Society, 2023-12-25)
Symmetrical solid oxide cells (SSOCs) have recently gained significant attention for their potential in energy conversion due to their simplified cell configuration, cost-effectiveness, and excellent reversibility. However, ... -
CuO metallic aerogels with a tailored nodular morphology
(RSC (Royal Society of Chemistry), 2023-09-28)This work reports, for the first time, an efficient and fast microwave-based method for the preparation of CuO aerogels. For that, CuCl2, glyoxylic acid and sodium carbonate are employed as reagents. Different experimental ... -
Selective production of furan from gas-phase furfural decarbonylation on Ni-MgO catalysts.
Jiménez-Gómez, Carmen Pilar; Cecilia-Buenestado, Juan Antonio; García-Sancho, Cristina; Moreno-Tost, Ramón; Maireles-Torres, Pedro Jesús (American Chemical Society, 2019-03-13)
A series of Ni-MgO catalysts (Ni/Mg molar ratio: 0.1-0.3), prepared by a coprecipitation-calcination-reduction methodology, was characterized and evaluated in the gas-phase hydrogenation of furfural. In all cases, after ... -
Effect of the treatment with H3PO4 on the catalytic activity of Nb2O5 supported on Zr-doped mesoporous silica catalyst. Case study: glycerol dehydration.
García-Sancho, Cristina; Cecilia-Buenestado, Juan Antonio; Mérida-Robles, Josefa María; Santamaría-González, José; Moreno-Tost, Ramón; Infantes-Molina, Antonia; Maireles-Torres, Pedro Jesús[et al.] (Elsevier B.V., 2017-09-06)
We have previously demonstrated the influence of the niobium species over the glycerol dehydration reaction and how the catalyst regeneration by thermal treatment modified the catalytic performance due to the transformation ...