Listar DQO-Artículos, capítulos... por autor "c5746f4a-107a-4eec-a09c-f140f99ca12c"
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Acetone Prospect as an Additive to Allow the Use of Castor and Sunflower Oils as Drop-In Biofuels in Diesel/Acetone/Vegetable Oil Triple Blends for Application in Diesel Engines
Aguado-Deblas, Laura; Hidalgo-Carrillo, J.; Bautista, Felipa M.; Luna, Diego; Luna, Carlos; Calero, Juan; Posadillo, Alejandro; Romero, Antonio A.; Estévez, R. (MDPI, 2020)The present paper investigates the feasibility of using acetone (ACE) in triple blends with fossil diesel (D) and straight vegetable oils (SVOs) as alternative fuel for diesel engines. In this respect, ACE is selected as ... -
Aldol Condensation of Furfural with Acetone Over Mg/Al Mixed Oxides. Influence of Water and Synthesis Method
Parejas, A.; Cosano, Daniel; Hidalgo-Carrillo, J.; Ruiz, José Rafael; Marinas, Alberto; Jiménez-Sanchidrián, César; Urbano Navarro, Francisco José (MDPI, 2019)Aldol condensation of furfural and acetone (an important initial step to obtain diesel from biomass) was studied over MgAl mixed oxides. The influence of the utilization of microwaves and/or a surfactant (Pluronic 123) ... -
Bio-Templating: An Emerging Synthetic Technique for Catalysts. A Review
Herrera-Beurnio, M. Carmen; Hidalgo-Carrillo, J.; Martín-Gómez, Juan; Martín-Gómez, Juan; Estévez, R.; Urbano, Francisco José; Marinas, Alberto (MDPI, 2021)In the last few years, researchers have focused their attention on the synthesis of new catalyst structures based on or inspired by nature. Biotemplating involves the transfer of biological structures to inorganic materials ... -
Biochars from olive stones as Carbonaceous support in Pt/TiO2-Carbon Photocatalysts and application in hydrogen production from aqueous glycerol photoreforming
Escamilla, Juan Carlos; Hidalgo-Carrillo, J.; Martín-Gómez, Juan; López Tenllado, Francisco Javier; Estévez, R.; Marinas, Alberto; Urbano, Francisco José (MDPI, 2023)Several biochars were synthesized from olive stones and used as supports for TiO2, as an active semiconductor, and Pt as a co-catalyst (Pt/TiO2-PyCF and Pt/TiO2-AC). A third carbon-supported photocatalyst was prepared from ... -
Biofuels from Diethyl Carbonate and Vegetable Oils for Use in Triple Blends with Diesel Fuel: Effect on Performance and Smoke Emissions of a Diesel Engine
Aguado-Deblas, Laura; Hidalgo-Carrillo, J.; Bautista, Felipa M.; Luna, Carlos; Calero, Juan; Posadillo, Alejandro; Romero, Antonio A.; Luna, Diego; Estévez, R. (MDPI, 2020)The main objective of this work is to contribute to a gradual replacement process of fossil diesel (D) with biofuels composed by diethyl carbonate (DEC) and either sunflower or castor oil, as straight vegetable oils (SVOs). ... -
Controlled photodeposition of Pt onto TiO2-g-C3N4 systems for photocatalytic hydrogen production
Herrera-Beurnio, M. Carmen; López Tenllado, Francisco Javier; Hidalgo-Carrillo, J.; Martín-Gómez, Juan; Estévez, R.; Castillo-Rodríguez, Miguel; Miguel, Gustavo de; Urbano, Francisco José; Marinas, Alberto (Elsevier, 2022)Platinum (0.5 wt. %) was photodeposited on g-C3N4-TiO2 systems using UV or Vis light. Different absorption by semiconductors seemed to somehow influence resulting platinum particle size and distribution. Thus, lower platinum ... -
Desarrollo de una aplicación móvil para la virtualización de laboratorios de ciencias
Sánchez-López, Elena; Martínez García, G.; Esquivel, Dolores; Membrillo, A.; González Merino, R.; Urbano Navarro, Francisco José; Laguna Luna, Ana María; Romero-Salguero, F.J.; Alonso Moraga, Ángeles; Marinas, Alberto; Hidalgo-Carrillo, J. (UCOPress, 2018)Desde la inclusión de España en la Declaración de Bolonia, cuyo objetivo es reformar el sistema universitario a través del Espacio Europeo de Educación Superior (EEES), el alumno adquiere un papel de liderazgo en el proceso ... -
EPR and CV studies cast further light on the origin of the enhanced hydrogen production through glycerol photoreforming on CuO:TiO2 physical mixtures
Martín-Gómez, Juan; Hidalgo-Carrillo, J.; Montes, Vicente; Estévez, R.; Escamilla, Juan Carlos; Marinas, Alberto; Urbano, Francisco José (Elsevier, 2021)Different CuO nanoparticles were synthesized and tested in CuO:TiO2 physical mixtures for hydrogen production through glycerol photoreforming. CuO alone was inactive whereas its presence in CuO:TiO2 mixtures significantly ... -
Evaluation of Dimethyl Carbonate as Alternative Biofuel. Performance and Smoke Emissions of a Diesel Engine Fueled with Diesel/Dimethyl Carbonate/Straight Vegetable Oil Triple Blends
Aguado-Deblas, Laura; Hidalgo-Carrillo, J.; Bautista, Felipa M.; Luna, Carlos; Calero, Juan; Posadillo, Alejandro; Romero, Antonio A.; Luna, Diego; Estévez, R. (MDPI, 2021)Dimethyl carbonate (DMC) is an interesting blending component for diesel fuel (D) owing to the high oxygen content (53 wt.%) and the absence of C–C bonds in its structure. Moreover, DMC can be produced from CO2 and methanol, ... -
Fourth generation synthesis of solketal by glycerol acetalization with acetone: A solar-light photocatalytic approach
Hidalgo-Carrillo, J.; Estévez, R.; López Tenllado, Francisco Javier; Bautista, Felipa M.; Urbano, Francisco José; Marinas, Alberto (Elsevier, 2021)Background: Biomass is the only renewable alternative to fossil fuels to produce chemicals. In this sense, glycerol is an important biomass-derived platform chemical obtained as a by-product during biodiesel generation. ... -
Glyceraldehyde production by photocatalytic oxidation of glycerol on WO3-based materials
Yu, Jie; Dappozze, Frederic; Martín-Gomez, Juan; Hidalgo-Carrillo, J.; Marinas, Alberto; Vernoux, Philippe; Caravaca, Ángel; Guillard, Chantal (Elsevier, 2021)Valorization of glycerol into high added-value products by photocatalysis can not only create good economic benefits, but also cater to the global low-carbon and energy-saving environmental protection needs. In this study ... -
Glycerol photoreforming for photocatalytic hydrogen production on binary and ternary Pt-g-C3N4-TiO2 systems: a comparative study
Herrera-Beurnio, M. Carmen; López-Tenllado, Francisco J.; Hidalgo-Carrillo, J.; Martín-Gómez, Juan; Estévez, R.; Urbano, Francisco José; Marinas, Alberto (Elsevier, 2024)Photocatalytic hydrogen production using two sacrificial agents (triethanolamine and glycerol) was conducted on several binary (Pt/TiO2 and Pt/g-C3N4) and ternary systems (Pt on a heterojunction between TiO2 and g-C3N4 ... -
Hydrogen photo-production from glycerol on platinum, gold and silver-modified TiO2-USY62 catalysts
López Tenllado, Francisco Javier; Estévez, R.; Hidalgo-Carrillo, J.; López Fernández, Silvia; Urbano, Francisco José; Marinas, Alberto (Elsevier, 2022)In this work, photocatalysts consisting of TiO2 supported on zeolite (USY62) were synthesized by sol-gel method and, subsequently, a noble metal (Pt, Au, or Ag) was incorporated by impregnation or photodeposition. Zeolite-TiO2 ... -
Hydrogen Photo-Production from Glycerol Using Nickel-Doped TiO2 Catalysts: Effect of Catalyst Pre-Treatment
Hidalgo-Carrillo, J.; Martín-Gómez, Juan; Morales, Julia; Espejo, Juan Carlos; Urbano Navarro, Francisco José; Marinas, Alberto (MDPI, 2019)In the present piece of research, hydrogen production via the photo-reforming of glycerol (a byproduct from biodiesel generation) is studied. Catalysts consisted of titania modified by Ni (0.5% by weight) obtained through ... -
Hydrogen photoproduction on TiO2-CuO artificial olive leaves
Martín-Gómez, Juan; Hidalgo-Carrillo, J.; Estévez, R.; Urbano, Francisco José; Marinas, Alberto (Elsevier, 2021)Olive leaves were used as biotemplates to synthesize diverse TiO2-CuO solids. A successful replication of trichomes and internal channels was evidenced by SEM, whereas a good dispersion of Cu and Ti atoms was observed by ... -
Hydrogen Production through Glycerol Photoreforming on TiO2/Mesoporous Carbon: Influence of the Synthetic Method
Escamilla, Juan Carlos; Hidalgo-Carrillo, J.; Martín-Gómez, Juan; Estévez, R.; Montes, Vicente; Cosano, Daniel; Urbano Navarro, Francisco José; Marinas, Alberto (MDPI, 2020)This article explores the effect of the synthetic method of titanium dioxide (TiO2)/C composites (physical mixture and the water-assisted/unassisted sol-gel method) on their photocatalytic activity for hydrogen production ... -
Hydrogenation of α,β-Unsaturated Carbonyl Compounds over Covalently Heterogenized Ru(II) Diphosphine Complexes on AlPO4-Sepiolite Supports
Caballero, Verónica; Estévez, R.; Luna, Diego; Bautista, Felipa M.; Romero, Antonio A.; Aguado-Deblas, Laura; Hidalgo-Carrillo, J.; Romero, Isabel (MDPI, 2021)In this work, the covalent immobilization of two ruthenium(II) complexes, i.e., [RuIICl (bpea){(S)(-)(BINAP)}](BF4), 1, and [RuIICl(bpea)(DPPE)](BF4), 2, where BINAP = 2,2’-bis(diphenylphosphino)-1,1’-binaphthyl and DPPE ... -
Influence of Boron, Tungsten and Molybdenum Modifiers on Zirconia Based Pt Catalyst for Glycerol Valorization
Checa Gómez, Manuel; Montes, Vicente; Hidalgo-Carrillo, J.; Marinas, Alberto; Urbano Navarro, Francisco José (MDPI, 2019)The influence of boron, tungsten and molybdenum modifiers on zirconia-based Pt catalyst was studied for glycerol valorization. Zirconia modified supports were prepared by impregnation of ZrO2 with either boric, silicontungstic ... -
Influence of sacrificial agent on Cu photodeposition over TiO2/MCH composites for photocatalytic hydrogen production
Martín-Gómez, Juan; Escamilla, Juan Carlos; Hidalgo-Carrillo, J.; López Tenllado, Francisco Javier; Estévez, R.; Herrera-Beurnio, M. Carmen; Castillo-Rodríguez, Miguel; Urbano, Francisco José; Marinas, Alberto (Elsevier, 2022)Titanium (ca. 11 wt%) was dispersed on a carbonaceous mesoporous support and modified with copper (ca. 5 wt%) photodeposited using either glycerol or methanol as the sacrificial agent ((Cu-TiO2/MCH_(Gly) and Cu-TiO2/MCH_(Met) ... -
Microemulsion and Sol-Gel Synthesized ZrO2-MgO Catalysts for the Liquid-Phase Dehydration of Xylose to Furfural
Montes, Vicente; Hidalgo-Carrillo, J.; Marinas, Alberto; Urbano Navarro, Francisco José; Parejas, A.; Sánchez-López, Elena (MDPI, 2017)Two series of catalysts were prepared by sol-gel and microemulsion synthetic procedure (SG and ME, respectively). Each series includes both pure Mg and Zr solids as well as Mg-Zr mixed solids with 25%, 50% and 75% nominal ...