Physical; Environmental Sciences

Pt-free CoAl2O4 catalyst for soot combustion with NOx/O-2

Authors: Alvarez-Docio, CM; Portela, R; Reinosa, JJ; Rubio-Marcos, F; Granados-Miralles, C; Pascual, L; Fernandez, JF

Article.
Appl. Catal. A-Gen.. vol: 591. page: 0926-860X.
Date: feb-05. 2020.
Doi: 10.1016/j.apcata.2019.117404.

Abstract:
Cobalt aluminate spinel compounds prepared by different methods were characterized in terms of crystalline structure, morphology, textural properties and acidity, and evaluated as catalysts for diesel soot combustion in NOx/O-2 mixtures. The activation [read more]

Synergistic effect between CaCl2 and gamma-Al2O3 for furfural production by dehydration of hemicellulosic carbohydrates

Authors: Funez-Nunez, I; Garcia-Sancho, C; Cecilia, JA; Moreno-Tost, R; Perez-Inestrosa, E; Serrano-Cantador, L; Maireles-Torres, P

Article.
Appl. Catal. A-Gen.. vol: 585. page: 0926-860X.
Date: sept-05. 2019.
Doi: 10.1016/j.apcata.2019.117188.

Abstract:
gamma-Al2O3 has successfully been used as solid acid catalyst for xylose dehydration in a water:toluene biphasic system. The addition of alkaline earth metal chlorides improved the partition coefficient, thus facilitating the extraction of [read more]

Study of bifunctionality of Pt/SBA-15 catalysts for HDO of Dibenzofuran reaction: Addition of Mo or use of an acidic support

Authors: Ballesteros-Plata, D; Infantes-Molina, A; Rodriguez-Castellon, E

Article.
Appl. Catal. A-Gen.. vol: 580. page: 0926-860X.
Date: jun-25. 2019.
Doi: 10.1016/j.apcata.2019.05.002.

Abstract:
Mesoporous silica SBA-15 and ZrSBA-15 (Si/Zr = 10) were prepared and used as supports of platinum and molybdenum based catalysts to be tested in the hydrodeoxygenation (11.130) reaction of dibenzofuran (DBF) as a model compound present in biomass derived bio-oil, at [read more]

Pt-free CoAl2O4 catalyst for soot combustion with NOx/O-2

Authors: Alvarez-Docio, CM; Portela, R; Reinosa, JJ; Rubio-Marcos, F; Granados-Miralles, C; Pascual, L; Fernandez, JF

Article.
Appl. Catal. A-Gen.. vol: 591. page: 0926-860X.
Date: feb-05. 2020.
Doi: 10.1016/j.apcata.2019.117404.

Abstract:
Cobalt aluminate spinel compounds prepared by different methods were characterized in terms of crystalline structure, morphology, textural properties and acidity, and evaluated as catalysts for diesel soot combustion in NOx/O-2 mixtures. The activation [read more]

Synthesis of mesoporous-zeolite materials using Beta zeolite nanoparticles as precursors and their catalytic performance in m-xylene isomerization and disproportionation

Authors: Chaida-Chenni, FZ; Belhadj, F; Casas, MSG; Marquez-Alvarez, C; Hamacha, R; Bengueddach, A; Perez-Pariente, J

Article.
Appl. Catal. A-Gen.. vol: 568. page: 0926-860X.
Date: nov-25. 2018.
Doi: 10.1016/j.apcata.2018.10.005.

Abstract:
Hierarchical Beta nanozeolites with the properties of both Beta nanozeolite and mesoporous material were prepared by two different methods: (1) Direct Hydrothermal Method (DHM) by the assembly of nanocrystals of preformed Beta seeds [read more]

Optimization of ruthenium based catalysts for the aqueous phase hydrogenation of furfural to furfuryl alcohol

Authors: Ramirez-Barria, C; Isaacs, M; Wilson, K; Guerrero-Ruiz, A; Rodriguez-Ramos, I

Article.
Appl. Catal. A-Gen.. vol: 563. page: 0926-860X.
Date: AUG 5. 2018.
Doi: 10.1016/j.apcata.2018.07.010.

Abstract:
The catalytic performance of a series of 4 wt.% Ru-based catalysts in the aqueous-phase hydrogenation of furfural (FAL) to furfuryl alcohol (FOL) has been studied in a batch reactor under very mild conditions of 20 degrees [read more]

Selective production of furfuryl alcohol from furfural by catalytic transfer hydrogenation over commercial aluminas

Authors: Lopez-Asensio, R; Cecilia, JA; Jimenez-Gomez, CP; Garcia-Sancho, C; Moreno-Tost, R; Maireles-Torres, P

Article.
Appl. Catal. A-Gen.. vol: 556. page: 0926-860X.
Date: APR 25. 2018.
Doi: 10.1016/j.apcata.2018.02.022.

Abstract:
Three commercial aluminas (gamma-Al2O3) have been evaluated as inexpensive catalysts in the Meerwein-Ponndorf-Verley (MPV) reaction to reduce furfural (FUR) to furfuryl alcohol (FOL), using isopropanol (i-Pr-OH), 2-butanol (2-bu-OH) and cyclohexanol (CH-OH) as sacrificing alcohol [read more]

Measuring and interpreting quantum efficiency of acid blue 9 photodegradation using TiO2-based catalysts

Authors: Caudillo-Flores, U; Munoz-Batista, MJ; Kubacka, A; Zarate-Medina, J; Cortes, JA; Fernandez-Garcia, M

Article.
Appl. Catal. A-Gen.. vol: 550. page: 0926-860X.
Date: JAN 25. 2018.
Doi: 10.1016/j.apcata.2017.10.016.

Abstract:
A series of highly-active catalysts were obtained from the same precursor and calcined at different temperatures to generate single-phase anatase and anatase-rutile composite powders. Performance of the catalysts was compared with the P25 reference [read more]

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