Physical

Catalytic Conversion of Cyclopentanone into Dimethyl Adipate over Solid Basic Catalysts with Dimethyl Carbonate

Authors: Martínez-Salazar, I; Orozco-Saumell, A; Granados, ML; Mariscal, R

Article.
Catalysts. vol: 14. page: .
Date: JAN. 2024.
Doi: 10.3390/catal14010086.

Abstract:
The synthesis of dimethyl adipate (DAP), a stable configuration of adipic acid, from biomass-derived cyclopentanone (CPO) and dimethyl carbonate (DMC) constitutes an attractive greener route than petroleum-based industrial processes. Solid basic catalysts such as MgO, Mg5(CO3)4(OH)2 center dot 4H2O, KOCH3 and [read more]

2024-02-16T19:24:06+01:00Categories: Publications 2024|Tags: , |

Hydrogenation of Furfural to Cyclopentanone in Tert-Butanol-Water Medium: A Study of the Reaction Intermediates Reactivity Using Cu/ZnO/Al2O3 as Catalyst

Authors: Orozco-Saumell, A; Mariscal, R; Vila, F; Granados, ML; Alonso, DM

Article.
Catalysts. vol: 13. page: .
Date: NOV. 2023.
Doi: 10.3390/catal13111394.

Abstract:
The catalytic transformation of furfural to cyclopentanone has been investigated using two different liquid phases as solvent: water and 30 wt.% tert-butanol in water. When using neat water at 160 degrees C, 40 bar of H-2, and after 2 [read more]

2023-11-22T00:00:00+01:00Categories: Publications 2023|Tags: , |

Critical Step in the HCl Oxidation Reaction over Single-Crystalline CeO2-x (111): Peroxo-Induced Site Change of Strongly Adsorbed Surface Chlorine

Authors: Koller, V; Lustemberg, PG; Spriewald-Luciano, A; Gericke, SM; Larsson, A; Sack, C; Preobrajenski, A; Lundgren, E; Ganduglia-Pirovano, MV; Over, H

Article.
ACS Catal.. vol: 13. page: 2155-5435.
Date: oct-06. 2023.
Doi: 10.1021/acscatal.3c03222.

Abstract:
The catalytic oxidation of HCl by molecular oxygen (Deacon process) over ceria allows the recovery of molecular chlorine from the omnipresent HCl waste produced in various industrial processes. [read more]

2023-12-22T10:48:59+01:00Categories: Highlights, Publications 2023|Tags: , |

Preparation of Dual-activity Enzyme-metal-nanoparticles Conjugate Catalysts for Cascade Processes

Authors: Palomo, JM

Article; Early Access.
ChemCatChem. vol: . page: 1867-3880.
Date: 2023 AUG 17. 2023.
Doi: 10.1002/cctc.202300701.

Abstract:
The fabrication of novel systems where enzymatic and metallic actives sites directly interact represents an elegant strategy for sustainable processes. One of the new strategies involves the in situ formation of metal nanoparticles on a protein network as scaffold. This biological entity is [read more]

2023-09-24T13:00:53+02:00Categories: Publications 2023|Tags: , |

Hydrogenation of CO2 to Valuable C-2-C-5 Hydrocarbons on Mn-Promoted High-Surface-Area Iron Catalysts

Authors: Zepeda, TA; Aguirre, S; Galindo-Ortega, YI; Solis-Garcia, A; Yerga, RMN; Pawelec, B; Fierro-Gonzalez, JC; Fuentes, S

Article.
Catalysts. vol: 13. page: .
Date: JUN. 2023.
Doi: 10.3390/catal13060954.

Abstract:
Mn-promoted bulk iron catalysts with a high specific surface area (82-211 m(2)& BULL;g(-1)) were synthesized by coprecipitation followed by drying under supercritical conditions. The catalysts were tested in the CO2 hydrogenation to valuable [read more]

2023-06-24T00:00:00+02:00Categories: Publications 2023|Tags: , |

Combined Operando XANES and NMR and ESR Spectroscopies for the Determination of VPO Dynamic States

Authors: Guerrero-Perez, MO; Lapina, OB; Rasmussen, SB; Banares, MA

Article; Early Access.
Top. Catal.. vol: . page: 1022-5528.
Date: 2023 MAY 29. 2023.
Doi: 10.1007/s11244-023-01827-2.

Abstract:
Nanoscaled-VPO (vanadium phosphate oxide) catalysts have been prepared on an alumina support with the objective of obtaining crystallites of the active phase with a high surface-to-volume ratio. Since the catalysed reaction occurs at the surface, these [read more]

Solid-Phase Lipase-CuNPs Biohybrids as Catalysts for One-Pot Parallel Synthesis of 2,3,4-Triacetyl-D-Gluconic Acid

Authors: Losada-Garcia, N; Urriolabeitia, EP; Palomo, JM

Article; Early Access.
ChemCatChem. vol: . page: 1867-3880.
Date: . .
Doi: 10.1002/cctc.202201632.

Abstract:
Solid-phase lipase/metal nanobiohybrids, generated by growth of copper nanoparticles on enzyme matrixes immobilized on graphene, were used as heterogeneous catalysts with dual-activity for the regioselective production of 2,3,4-triacetyl-D-gluconic acid from alpha-peracetylated-glucose in a one-pot parallel process combining a lipase-mediated regioselective hydrolytic [read more]

2023-05-03T11:23:09+02:00Categories: Publications 2023|Tags: , |

Hybrid Organometallic and Enzymatic Tandem Catalysis for Oxyfunctionalisation Reactions

Authors: Domestici, C; Wu, YQ; Hilberath, T; Alcalde, M; Hollmann, F; Macchioni, A

Article; Early Access.
ChemCatChem. vol: . page: 1867-3880.
Date: . .
Doi: 10.1002/cctc.202201623.

Abstract:
Unspecific peroxygenases (UPOs) are promising biocatalysts for oxyfunctionalisation reactions, owing to their simplicity of handling, stability and robustness. A limitation of using UPOs on a large scale is their deactivation in the presence of even [read more]

2023-04-14T10:43:00+02:00Categories: Publications 2023|Tags: , |

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

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

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

Abstract:
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]

2022-11-09T17:49:34+01:00Categories: Publications 2022|Tags: , |

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

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

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

Abstract:
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: Publications 2022|Tags: , |
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