Optimization of the immobilization of xylanase from Thermomyces lanuginosus to produce xylooligosaccharides in a batch type reactor

Autores: Alagoz, D; Varan, NE; Yildirim, D; Fernandez-Lafuente, R

Mol. Catal.. vol: 531. page: 2468-8231.
Fecha: OCT. 2022.
Doi: 10.1016/j.mcat.2022.112647.

The xylanase from Thermomyces lanuginosus was immobilized following very different protocols, using 3-aminopropyl (Xyl/CNT-NH2) and carboxylic acid (Xyl/CNT-C) functionalized multi-walled carbon nanotubes or after glutaraldehyde activation of CNT-NH2 (Xyl/CNT-Glu). It was also immobilized on carboxylic acid functionalized multi-walled carbon nanotubes [read more]

2022-11-09T17:50:52+01:00Categories: Publicaciones 2022|Tags: , |

Transformation of Methanol to Hydrocarbons (MTH): Comparison Between MeAPO-36 (Me = Zn, Co, Mg) and Modified ZSM-5 Catalysts

Autores: Ruiz, MG; Casados, DAS; Pliego, JA; Alvarez, CM; de Andres, ES

Artículo; Early Access.
Catal. Lett.. vol: . page: 1011-372X.
Fecha: . .
Doi: 10.1007/s10562-022-04181-2.

This paper presents a study of the use of zeolitic catalysts and modified zeotypes for the reaction of transformation of methanol to hydrocarbons (MTH). Materials of the aluminophosphate type MeAPO-36 where Me is Zn, Mg [read more]

2022-10-07T10:56:38+02:00Categories: Publicaciones 2022|Tags: , |

The Stability of Dimeric D-amino Acid Oxidase from Porcine Kidney Strongly Depends on the Buffer Nature and Concentration

Autores: Carballares, D; Rocha-Martin, J; Fernandez-Lafuente, R

Catalysts. vol: 12. page: .
Fecha: SEP. 2022.
Doi: 10.3390/catal12091009.

The first step of the inactivation of the enzyme D-amino acid oxidase (DAAO) from porcine kidney at pH 5 and 7 is the enzyme subunit dissociation, while FAD dissociation has not a relevant role. At pH 9, both dissociation phenomena affect the enzyme [read more]

2022-09-07T00:00:00+02:00Categories: Publicaciones 2022|Tags: , |

Influence of nickel loading on the hydroisomerization of n-dodecane with nickel-tungsten oxide-alumina supported catalysts

Autores: Garcia-Perez, D; Lopez-Garcia, A; Renones, P; Alvarez-Galvan, MC; Campos-Martin, JM

Mol. Catal.. vol: 529. page: 2468-8231.
Fecha: AUG. 2022.
Doi: 10.1016/j.mcat.2022.112556.

Heterogeneous catalysts based on alumina-supported tungsten oxides (15 wt% W) with different loadings of nickel (0.5, 1, 2, 4, 6, 8 and 10 wt% Ni) were selected to study the influence of Ni loading on the hydroisomerization of [read more]

2022-08-07T00:00:00+02:00Categories: Publicaciones 2022|Tags: , |

Recent progress in the quantitative assessment and interpretation of photoactivity

Autores: Caudillo-Flores, U; Munoz-Batista, MJ; Fernandez-Garcia, M; Kubacka, A

Review; Early Access.
Catal. Rev.-Sci. Eng.. vol: . page: 0161-4940.
Fecha: . .
Doi: 10.1080/01614940.2022.2075535.

The development of the photo-catalysis field is limited by a deficient quantitative assessment of photo-activity. The interplay between mass and momentum transport together with radiative transfer phenomena taking place at any photo-catalytic reaction or process makes complex [read more]

2022-07-15T11:26:06+02:00Categories: Destacados, Publicaciones 2022|Tags: , |

Cascade Catalysis Through Bifunctional Lipase Metal Biohybrids for the Synthesis of Enantioenriched O-Heterocycles from Allenes

Autores: Naapuri, JM; Losada-Garcia, N; Rothemann, RA; Pichardo, MC; Prechtl, MHG; Palomo, JM; Deska, J

Artículo; Early Access.
ChemCatChem. vol: . page: 1867-3880.
Fecha: . .
Doi: 10.1002/cctc.202200362.

Lipase/metal nanobiohybrids, generated by growth of silver or gold nanoparticles on protein matrixes are used as highly effective dual-activity heterogeneous catalysts for the production of enantiomerically enriched 2,5-dihydrofurans from allenic acetates in a [read more]

2022-07-15T08:57:07+02:00Categories: Publicaciones 2022|Tags: , |

Silica Bifunctional Supports for the Direct Synthesis of H2O2: Optimization of Br/Acid Sites and Pd/Br Ratio

Autores: Blanco-Brieva, G; Desmedt, F; Miquel, P; Campos-Martin, JM; Fierro, JLG

Catalysts. vol: 12. page: .
Fecha: JUL. 2022.
Doi: 10.3390/catal12070796.

We have studied the direct synthesis of hydrogen peroxide using a catalytic system consisting of palladium supported on silica bifunctionalized with sulfonic acid groups and bromide in the absence of acid and halide promoters in solution. Catalysts with several [read more]

2022-09-14T10:57:38+02:00Categories: Publicaciones 2022|Tags: , |

Transformation of CoFe2O4 spinel structure into active and robust CoFe alloy/N-doped carbon electrocatalyst for oxygen evolution reaction

Autores: Gebreslase, GA; Martinez-Huerta, MV; Sebastian, D; Lazaro, MJ

J. Colloid Interface Sci.. vol: 625. page: 0021-9797.
Fecha: NOV. 2022.
Doi: 10.1016/j.jcis.2022.06.005.

Electrochemical water splitting is an environmentally benign technology employed for H-2 production; however, it is critically hampered by the sluggish kinetics of the oxygen evolution reaction (OER) at the positive electrode. In this work, nitrogen-doped carbon-coated CoFe electrocatalysts [read more]

2022-07-15T11:10:00+02:00Categories: Destacados, Publicaciones 2022|Tags: , |

Photodegradation of 2-propanol in gas phase over zirconium doped TiO2: Effect of Zr content

Autores: Jedidi, W; Arfaoui, J; Caudillo-Flores, U; Munoz-Batista, MJ; Ksibi, Z; Kubacka, A; Ghorbel, A; Fernandez-Garcia, M

J. Photochem. Photobiol. A-Chem.. vol: 427. page: 1010-6030.
Fecha: may-01. 2022.
Doi: 10.1016/j.jphotochem.2022.113774.

The photocatalytic activity in the 2-propanol degradation, under UV and sunlight (SL)-type irradiations, of a series of Zr-TiO(2 )materials, prepared using the sol-gel method, with a Zr content ranging from [read more]

2022-05-05T19:00:56+02:00Categories: Destacados, Publicaciones 2022|Tags: , |

Transforming Waste Clamshell into Highly Selective Nanostructured Catalysts for Solvent Free Liquid Phase Oxidation of Benzyl Alcohol

Autores: Saffari, NS; Aghabarari, B; Javaheri, M; Khanlarkhani, A; Martinez-Huerta, MV

Catalysts. vol: 12. page: .
Fecha: FEB. 2022.
Doi: 10.3390/catal12020155.

High yield production of benzaldehyde in the solvent-free oxidation of benzyl alcohol by using green catalysts is highly desirable. In this work, calcium hydroxide derived from waste clamshell was used as low-cost and environmentally friendly catalyst support (CaSUP) for [read more]

2022-02-05T00:00:00+01:00Categories: Publicaciones 2022|Tags: , |


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