Chemistry

Immobilization of lipases via interfacial activation on hydrophobic supports: Production of biocatalysts libraries by altering the immobilization conditions

Authors: Arana-Pena, S; Rios, NS; Carballares, D; Goncalves, LRB; Fernandez-Lafuente, R

Article.
Catal. Today. vol: 362. page: 0920-5861.
Date: feb-15. 2021.
Doi: 10.1016/j.cattod.2020.03.059.

Abstract:
Lipases A and B from Candida antarctica (CALA, CALB), and those from Candida rugosa (CRL) and Rhizomucor miehei (RML) have been immobilized on octyl agarose beads under 16 different conditions. The activities of the [read more]

Enzymatic synthesis of biolubricants from by-product of soybean oil processing catalyzed by different biocatalysts of Candida rugosa lipase

Authors: Fernandes, KV; Cavalcanti, EDC; Cipolatti, EP; Aguieiras, ECG; Pinto, MCC; Tavares, FA; da Silva, PR; Fernandez-Lafuente, R; Arana-Pena, S; Pinto, JC; Assuncao, CLB; da Silva, JAC; Freire, DMG

Article.
Catal. Today. vol: 362. page: 0920-5861.
Date: feb-15. 2021.
Doi: 10.1016/j.cattod.2020.03.060.

Abstract:
The present work studied the synthesis of biolubricants from by-products of soybean oil processing using the [read more]

Polyaniline supported CdS/CeO2/Ag3PO4 nanocomposite: An “A-B” type tandem n-n heterojunctions with enhanced photocatalytic activity

Authors: Taddesse, AM; Bekele, T; Diaz, I; Adgo, A

Article.
J. Photochem. Photobiol. A-Chem.. vol: 406. page: 1010-6030.
Date: feb-01. 2021.
Doi: 10.1016/j.jphotochem.2020.113005.

Abstract:
In the present work, ternary composites of the form CdS/CeO2/Ag3PO4 with CdS:CeO2/Ag3PO4 molar ratios of (1:1, 2:1, 3:1 and 4:1) were synthesized by co-precipitation method. Polyaniline supported CdS/CeO2/Ag3PO4 nanocomposite was also synthesized by “in [read more]

2021-01-20T11:07:20+01:00Categories: Publications 2021|Tags: , |

Synthesis and Characterization of ZnAPO-34 and SAPO-34: Effect of Zn on the Acidity and Catalytic Activity in the MTO Reaction

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

Artículo.
J. Mex. Chem. Soc.. vol: 65. page: 1870-249X.
Fecha: . 2021.
Doi: 10.29356/jmcs.v65i1.1261.

Resumen:
SAPO-34 and ZnAPO-34 materials (Zn incorporated by isomorphic substitution in AlPO-34 material) were synthesized by hydrothermal synthesis using triethylamine (TEA) as the structure directing agent (SDA). The structure presented by both materials is isomorphic to [read more]

2021-02-05T13:54:02+01:00Categories: Publications 2021|Tags: , |

Preferential Oxidation of CO over CoFe2O4 and M/CoFe2O4 (M = Ce, Co, Cu or Zr) Catalysts

Autores: Bejaoui, M; Elmhamdi, A; Pascual, L; Perez-Bailac, P; Nahdi, K; Martinez-Arias, A

Artículo.
Catalysts. vol: 11. page: .
Fecha: JAN. 2021.
Doi: 10.3390/catal11010015.

Resumen:
CoFe2O4 prepared by sol-gel has been examined with respect to its catalytic performance for preferential CO oxidation in a H-2-rich stream. In turn, the promoting effects of incorporation of Ce, Co, Cu, and Zr by impregnation on [read more]

2021-02-11T09:06:17+01:00Categories: Publications 2021|Tags: , |

Oxidation of 5-Hydroxymethylfurfural on Supported Ag, Au, Pd and Bimetallic Pd-Au Catalysts: Effect of the Support

Autores: German, D; Pakrieva, E; Kolobova, E; Carabineiro, SAC; Stucchi, M; Villa, A; Prati, L; Bogdanchikova, N; Corberan, VC; Pestryakov, A

Artículo.
Catalysts. vol: 11. página: .
Fecha: JAN. 2021.
Doi: 10.3390/catal11010115.

Resumen:
Oxidation of 5-hydroxymethylfurfural (HMF), a major feedstock derived from waste/fresh biomass, into 2,5-furandicarboxylic acid (FDCA) is an important transformation for the production of biodegradable plastics. Herein, we investigated the [read more]

2021-02-11T09:15:35+01:00Categories: Publications 2021|Tags: , |

Structure-direction towards the new large pore zeolite NUD-3

Autores: Chen, FJ; Gao, ZHR; Li, J; Gomez-Hortiguela, L; Lin, C; Xu, L; Du, HB; Marquez-alvarez, C; Sun, JL; Camblor, MA

Artículo.
Chem. Commun.. vol: 57. página: 1359-7345.
Fecha: JAN 7. 2021.
Doi: 10.1039/d0cc07333d.

Resumen:
The new zeolite NUD-3 possesses a three-dimensional system of large pore channels that is topologically identical to those of ITQ-21 and PKU-14. However, the three zeolites have [read more]

2021-02-11T09:21:48+01:00Categories: Publications 2021|Tags: , |

Exploring the alternative MnO-Na2CO3 thermochemical cycle for water splitting

Authors: Bayon, A; O’Shea, VAD; Serrano, DP; Coronado, JM

Article.
J. CO2 Util.. vol: 42. page: 2212-9820.
Date: DEC. 2020.
Doi: 10.1016/j.jcou.2020.101264.

Abstract:
Thermochemical cycles for H2O and CO2 splitting using CeO2 have demonstrated high efficiency (> 5%) and fast kinetics. Alternative multistage cycles based on stoichiometric oxides, such as Mn-Na, can potentially provide much larger efficiencies under [read more]

SBA-15 with short channels for laccase immobilization

Authors: Khanmohammadi, F; Molina, MA; Blanco, RM; Azizi, SN; Marquez-Alvarez, C; Diaz, I Article. Microporous Mesoporous Mat.. vol: 309. page: 1387-1811. Date: DEC 15. 2020. Doi: 10.1016/j.micromeso.2020.110527. Abstract: Ordered Mesoporous Materials offer wide application areas in chemistry and biotechnology. SBA-15 displays hexagonal arrangement of parallel unidirectional channels, where pore size and particle morphology are the controlling [read more]

Arylative Allenol Cyclization via Sequential One-pot Enzyme & Palladium Catalysis

Authors: Naapuri, JM; Aberg, GA; Palomo, JM; Deska, J

Article; Early Access.
ChemCatChem. vol: . page: 1867-3880.
Date: . 03 December 2020
Doi: 10.1002/cctc.202001619.

Abstract:
The one-pot combination of halogenation biocatalysis and Suzuki-type cross coupling enables the direct arylative cyclization of allenic alcohols with boronic acids. This modular approach to unsaturated five-membered O-heterocycles proceeds in an aqueous [read more]

2020-12-26T20:06:42+01:00Categories: Publicaciones 2020|Tags: , |

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