Publications 2019

Methanol Synthesis from CO2: A Review of the Latest Developments in Heterogeneous Catalysis

Authors: Guil-Lopez, R; Mota, N; Llorente, J; Millan, E; Pawelec, B; Fierro, JLG; Navarro, RM

Review.
Materials. vol: 12. page: .
Date: DEC. 2019.
Doi: 10.3390/ma12233902.

Abstract:
Technological approaches which enable the effective utilization of CO2 for manufacturing value-added chemicals and fuels can help to solve environmental problems derived from large CO2 emissions associated with the use of fossil fuels. One of [read more]

Upgrading the Properties of Reduced Graphene Oxide and Nitrogen-Doped Reduced Graphene Oxide Produced by Thermal Reduction toward Efficient ORR Electrocatalysts

Authors: Ramirez-Barria, CS; Fernandes, DM; Freire, C; Villaro-Abalos, E; Guerrero-Ruiz, A; Rodriguez-Ramos, I

Article.
Nanomaterials. vol: 9. page: .
Date: DEC. 2019.
Doi: 10.3390/nano9121761.

Abstract:
N-doped (NrGO) and non-doped (rGO) graphenic materials are prepared by oxidation and further thermal treatment under ammonia and inert atmospheres, respectively, of natural graphites of different particle sizes. An extensive characterization of graphene materials points out that [read more]

Modulation of Lecitase properties via immobilization on differently activated Immobead-350: Stabilization and inversion of enantiospecificity

Authors: Pinheiro, MP; Monteiro, RRC; Silva, FFM; Lemos, TLG; Fernandez-Lafuente, R; Goncalves, LRB; dos Santos, JCS

Article.
Process Biochem.. vol: 87. page: 1359-5113.
Date: DEC. 2019.
Doi: 10.1016/j.procbio.2019.08.016.

Abstract:
Lecitase Ultra (Leci) was immobilized on Immobead-350 (IB-350) activated with epoxy (EPO), amino-divinylsulfone (DVS) or amino-glutaraldehyde (GLU) groups. Leci-GLU had 27% more activity versus p-nitro-phenyl butyrate (p-NPB) than Leci-EPO, after 3 h of [read more]

Extraction of polyphenols and synthesis of new activated carbon from spent coffee grounds

Authors: Ramon-Goncalves, M; Alcaraz, L; Perez-Ferreras, S; Leon-Gonzalez, ME; Rosales-Conrado, N; Lopez, FA

Article.
Sci Rep. vol: 9. page: 2045-2322.
Date: nov-27. 2019.
Doi: 10.1038/s41598-019-54205-y.

Abstract:
A valorization process of spent coffee grounds (SCG) was studied. Thus, a two-stage process, the first stage of polyphenols extraction and synthesis of a carbonaceous precursor and a subsequent stage of obtaining activated carbon (AC) by [read more]

2020-05-04T12:37:57+02:00Categories: Publications 2019|Tags: |

Deciphering the molecular specificity of phenolic compounds as inhibitors or glycosyl acceptors of beta-fructofuranosidase from Xanthophyllomyces dendrorhous

Authors: Ramirez-Escudero, M; Miguez, N; Gimeno-Perez, M; Ballesteros, AO; Fernandez-Lobato, M; Plou, FJ; Sanz-Aparicio, J

Article.
Sci Rep. vol: 9. page: 2045-2322.
Date: nov-25. 2019.
Doi: 10.1038/s41598-019-53948-y.

Abstract:
Enzymatic glycosylation of polyphenols is a tool to improve their physicochemical properties and bioavailability. On the other hand, glycosidic enzymes can be inhibited by phenolic compounds. In this work, we studied the specificity of [read more]

2020-05-04T12:38:06+02:00Categories: Publications 2019|Tags: |

Site-selective modification of tryptophan and protein tryptophan residues through PdNP bionanohybrid-catalysed C-H activation in aqueous media

Authors: Perez-Rizquez, C; Abian, O; Palomo, JM

Article.
Chem. Commun.. vol: 55. page: 1359-7345.
Date: nov-07. 2019.
Doi: 10.1039/c9cc06971b.

Abstract:
Herein we report for the first time the site-selective C-H bond arylation of tryptophan and tryptophan residues in proteins in aqueous media at room temperature by using a PdNP bionanohybrid as a heterogeneous catalyst. The reaction proceeds using a stable aryldiazonium salt [read more]

2020-05-04T12:38:14+02:00Categories: Publications 2019|Tags: , |

Sn-Al-USY for the valorization of glucose to methyl lactate: switching from hydrolytic to retro-aldol activity by alkaline ion exchange

Authors: Iglesias, J; Moreno, J; Morales, G; Melero, JA; Juarez, P; Granados, ML; Mariscal, R; Martinez-Salazar, I

Article.
Green Chem.. vol: 21. page: 1463-9262.
Date: nov-07. 2019.
Doi: 10.1039/c9gc02609f.

Abstract:
Lactic acid and ester derivatives, which are important precursors of a wide variety of products, can be prepared via retro-aldol sugar condensation in the presence of Sn-containing zeolites. However, the preparation of [read more]

Hydrogen thermo-photo production using Ru/TiO2: Heat and light synergistic effects

Authors: Caudillo-Flores, U; Agostini, G; Marini, C; Kubacka, A; Fernandez-Garcia, M

Article.
Appl. Catal. B-Environ.. vol: 256. page: 0926-3373.
Date: nov-05. 2019.
Doi: 10.1016/j.apcatb.2019.117790.

Abstract:
A series of ruthenium – anatase solids with noble metal loadings from 1 to 10 wt. %. was tested in the gas phase thermo-photo production of hydrogen using methanol as a sacrificial agent. Samples were characterized using [read more]

MnOx-support interactions in catalytic bodies for selective reduction of NO with NH3

Authors: Serrano-Lotina, A; Monte, M; Iglesias-Juez, A; Pavon-Cadierno, P; Portela, R; Avila, P

Article.
Appl. Catal. B-Environ.. vol: 256. page: 0926-3373.
Date: nov-05. 2019.
Doi: 10.1016/j.apcatb.2019.117821.

Abstract:
Catalytic bodies for selective reduction of NOx with NH3 based on MnOx, TiO2 and sepiolite as active phase, support, and binder, respectively, were prepared. The same amount of MnOx (5 w%) was added by impregnation [read more]

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