Listar DQO-Artículos, capítulos... por autor "889251dd-f2e0-4eae-b6bd-3542e96460c0"
Mostrando ítems 61-80 de 123
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Mechanochemical Preparation of Novel Polysaccharide-Supported Nb2O5 Catalysts
Rincón, E.; García, Araceli; Romero, Antonio A.; Serrano, Luis; Luque, Rafael; Balu, Alina M. (MDPI, 2019)Polysaccharides extracted from natural sources can be used as starting material for the preparation of nanoparticle supported composites. A novel family of bio-nanocomposites was mechanochemically synthesized by using ... -
Mechanochemical Synthesis of CuO/MgAl2O4 and MgFe2O4 Spinels for Vanillin Production from Isoeugenol and Vanillyl Alcohol
Rahmanivahid, Behgam; Pinilla de Dios, María; Haghighi, Mohammad; Luque, Rafael (MDPI, 2019)CuO/MgAl2O4 and CuO/MgFe2O4 catalysts were successfully synthesized with the use of spinel supports by a very simple and low-cost mechanochemical method. High-speed ball-milling was used to synthesize these catalyst supports ... -
Mechanochemical Synthesis of TiO2 Nanocomposites as Photocatalysts for Benzyl Alcohol Photo-Oxidation
Ouyang, Weiyi; Kuna, Ewelina; Yepes, Alfonso; Balu, Alina M.; Romero, Antonio A.; Colmenares, Juan C.; Luque, Rafael (MDPI, 2016)TiO2 (anatase phase) has excellent photocatalytic performance and different methods have been reported to overcome its main limitation of high band gap energy. In this work, TiO2-magnetically-separable nanocomposites ... -
Mechanochemically Synthesized Supported Magnetic Fe-Nanoparticles as Catalysts for Efficient Vanillin Production
Márquez Medina, M. Dolores; Rodríguez-Padrón, Daily; Balu, Alina M.; Romero, Antonio A.; Muñoz-Batista, Mario J.; Luque, Rafael (MDPI, 2019)Magnetically separable nanocatalysts were synthesized by incorporating iron nanoparticles on a mesoporous aluminosilicate (Al-SBA-15) through a mechanochemical grinding pathway in a single step. Noticeably, magnetic features ... -
Mechanochemically Synthetized PAN-Based Co-N-Doped Carbon Materials as Electrocatalyst for Oxygen Evolution Reaction
Gómez-López, Paulette; Salatti Dorado, José Ángel; Rodríguez-Padrón, Daily; Cano, Manuel; Alvarado-Beltrán, Clemente G.; Puente-Santiago, A.R.; Giner-Casares, Juan J.; Luque, Rafael (MDPI, 2021)We report a new class of polyacrylonitrile (PAN)-based Co-N-doped carbon materials that can act as suitable catalyst for oxygen evolution reactions (OER). Different Co loadings were mechanochemically added into post-consumed ... -
Métodos verdes de funcionalización de la nanocelulosa para el desarrollo de nuevos materiales renovables
García, Araceli; Sánchez, Antonio Jesus; Balu, Alina M.; Luque, Rafael (Universidad de Córdoba, 2017) -
Microwave-Assisted Conversion of Levulinic Acid to γ-Valerolactone Using Low-Loaded Supported Iron Oxide Nanoparticles on Porous Silicates
Luque, Rafael; Romero, Antonio A.; Climent, María Salud; De, Sudipta; Yépez, Alfonso (MDPI, 2015)The microwave-assisted conversion of levulinic acid (LA) has been studied using low-loaded supported Fe-based catalysts on porous silicates. A very simple, productive, and highly reproducible continuous flow method has ... -
Microwave-Assisted Depolymerisation of Biolignintm in the Presence of Zeolite-Based Catalysts
Milovanovic, Jelena; Romero, Antonio A.; Luque, Rafael; Rajić, Nevenka (2017-12-11)In this work a microwave-assisted depolymerisation of lignin in the presence of zeolite-based catalysts was studied in order to obtain a valuable bio-oil. Catalytic activity of H-ZSM-5, H-Y, H-BETA and H-Mordenite containing ... -
Microwave-assisted preparation of Ag/Ag2S carbon hybrid structures from pig bristles as efficient HER electrocatalysts
Muñoz-Batista, Mario J.; Puente-Santiago, A.R.; Zuliani, Alessio; Cova, Camilla María; Luque, Rafael; Caballero Amores, Álvaro (Royal Society of Chemistry, 2018)Ag/Ag2S hybrid structures have recently attracted significant interest due to their high chemical and thermal stability, in addition to their unique optical and electrical properties. However, their standard synthetic ... -
Microwave-Assisted Synthesis and Properties of Novel Hexaazatrinaphthylene Dendritic Scaffolds
García Velázquez, Daniel; Luque, Rafael; Gutiérrez Ravelo, Ángel (MDPI, 2020)A novel family of water-soluble π-conjugated hexaazatrinaphthylenes-based dendritic architectures constructed by hexaketocyclohexane and 1,2,4,5-benzenetetramine units is developed in a microwave-assisted organic synthesis ... -
Microwave-assisted valorization of pig bristles: towards visible light photocatalytic chalcocite composite
Zuliani, Alessio; Muñoz-Batista, Mario J.; Luque, Rafael (Royal Society of Chemistry, 2018)Waste valorization for the production of valuable materials is of great importance for sustainable development. Herein, a new green methodology for the synthesis of photocatalytically active copper sulfide (Cu2S) carbon ... -
Mild ultrasound-assisted synthesis of TiO2 supported on magnetic nanocomposites for selective photo-oxidation of benzyl alcohol
Colmenares, Juan C.; Ojeda, Manuel; Kuna, Ewelina; Chernyayeva, Olga; Lisovytskiy, Dmytro; Balu, Alina M.; Luque, Rafael; De, Sudipta; Ouyang, Weiyi (Elsevier, 2016)A simple and effective ultrasound-assisted wet impregnation method was developed for the preparation of magnetically separable TiO2/maghemite-silica photo-active nanocomposites. The resulting nanomaterials were characterized ... -
Mimicking the bioelectrocatalytic function of recombinant CotA laccase through electrostatically self-assembled bioconjugates
Alba-Molina, David; Rodríguez-Padrón, Daily; Puente-Santiago, A.R.; Giner-Casares, Juan J.; Martín-Romero, M.T.; Camacho, Luis; Martins, Lígia O.; Muñoz-Batista, Mario J.; Cano, Manuel; Luque, Rafael (Royal Society of Chemistry, 2018)Unprecedented 3D nanobiosystems composed of recombinant CotA laccases and citrate-stabilised gold nanoparticles have been successfully achieved by an electrostatic self-assembly strategy. The bioelectrochemical reduction ... -
Nanostructured TiO2 Carbon Paste Based Sensor for Determination of Methyldopa
Ferreira Garcia, Luane; Peixoto da Cunha, Carlos Eduardo; Kussmaul Gonçalves Moreno, Emily; Vieira Thomaz, Douglas; Sanz Lobón, Germán; Luque, Rafael; Somerset, Vernon; Souza Gil, Eric de (MDPI, 2018)Methyldopa is a catecholamine widely used in the treatment of mild to moderate hypertension whose determination in pharmaceutical formulae is of upmost importance for dose precision. Henceforth, a low-cost carbon paste ... -
NH4F Modified Al-SBA-15 Materials for Esterification of Valeric Acid to Alkyl Valerates
Blanco-Sánchez, Miguel; Franco, Ana; Pineda, A.; Balu, Alina M.; Romero, Antonio A.; Luque, Rafael (MDPI, 2019)Al-SBA-15 materials were functionalized by ball milling with several niobium loadings (0.25–1 wt.%) and/or with several F- loadings, using NH4F as a precursor. The catalysts synthesized in this study were characterised by ... -
Nickel hydroxide-supported ru single atoms and Pd nanoclusters for enhanced electrocatalytic hydrogen evolution and ethanol oxidation
Guang Li, An Pei; Zinan Huang, Jinyu Ye; Yu-Chung, Chang; Osman, Sameh M.; Chih-Wen, Pao; Qingsheng, Gao; Chen, Bing Hui; Luque, Rafael (Wiley, 2022)The rational fabrication of Pt-free catalysts for driving the development of practical applications in alkaline water electrolysis and fuel cells is promising but challenging. Herein, a promising approach is outlined for ... -
Novel Applications of Microbial Fuel Cells in Sensors and Biosensors
Ivars-Barceló, Francisco; Zuliani, Alessio; Fallah, Marjan; Mashkour, Mehrdad; Rahimnejad, Mostafa; Luque, Rafael (MDPI, 2018-07-20)A microbial fuel cell (MFC) is a type of bio-electrochemical system with novel features, such as electricity generation, wastewater treatment, and biosensor applications. In recent years, progressive trends in MFC research ... -
Novel Bifunctional Mesoporous Catalysts Based on Preyssler Heteropolyacids for Green Pyrrole Derivative Synthesis
Portilla-Zúñiga, Omar; Sathicq, Ángel; Martínez, José; Rojas, Hugo; De Geronimo, Eduardo; Luque, Rafael; Romanelli, Gustavo P. (MDPI, 2018)In this paper, we report the synthesis of Preyssler heteropolyacids supported on mesoporous alumina in order to obtain materials with acid–base properties. A series of pyrrole derivatives were synthesized using a suitable ... -
One-Pot Cu/TiO2 Nanoparticles Synthesis for Trans-Ferulic Acid Conversion into Vanillin
Gómez-López, Paulette; Lázaro, Noelia; Alvarado-Beltrán, Clemente G.; Pineda, A.; Balu, Alina M.; Luque, Rafael (MDPI, 2019)In this study, the co-synthesis of TiO2 and Cu metallic nanoparticles obtained via one-pot cost-efficient hydrothermal process has been addressed. Different nanocatalysts with Cu contents were characterized by X-ray ... -
Optimización en la síntesis de nanopartículas de hierro soportadas
Balu, Alina M.; Yépez, Alfonso; Romero, Antonio A.; Luque, Rafael (Universidad de Córdoba, 2015)