Chemical

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 lipase from Candida rugosa [read more]

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 biocatalysts versus different substrates [read more]

Microemulsion vs. Precipitation: Which Is the Best Synthesis of Nickel-Ceria Catalysts for Ethanol Steam Reforming?

Authors: Pizzolitto, C; Menegazzo, F; Ghedini, E; Arias, AM; Corberan, VC; Signoretto, M

Article.
Processes. vol: 9. page: .
Date: JAN. 2021.
Doi: 10.3390/pr9010077.

Abstract:
Ethanol steam reforming is one of the most promising ways to produce hydrogen from biomass, and the goal of this research is to investigate robust, selective and active catalysts for this reaction. In particular, this work is [read more]

2021-02-11T09:08:38+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 less stringent operation conditions. [read more]

Effect of surface area and physical-chemical properties of graphite and graphene-based materials on their adsorption capacity towards metronidazole and trimethoprim antibiotics in aqueous solution

Authors: Carrales-Alvarado, DH; Rodriguez-Ramos, I; Leyva-Ramos, R; Mendoza-Mendoza, E; Villela-Martinez, DE

Article.
Chem. Eng. J.. vol: 402. page: 1385-8947.
Date: DEC 15. 2020.
Doi: 10.1016/j.cej.2020.126155.

Abstract:
The adsorption of metronidazole (MNZ) and trimethoprim (TMP) antibiotics from water on nanomaterials synthesized from graphene oxide and graphite, was examined thoroughly. The effect of the physicochemical properties and surface area onto the adsorption capacity of [read more]

Process design and techno-economic analysis of gas and aqueous phase maleic anhydride production from biomass-derived furfural

Authors: Agirre, I; Gandarias, I; Granados, ML; Arias, PL

Article.
Biomass Convers. Biorefinery. vol: 10. page: 2190-6815.
Date: DEC. 2020.
Doi: 10.1007/s13399-019-00462-w.

Abstract:
Maleic anhydride is used worldwide for a wide range of applications: from the manufacture of resins to lubricant additives or agricultural chemicals. The current production processes use benzene or butane as raw materials. This work shows the conceptual design [read more]

Strong effect of light scattering by distribution of TiO2 particle aggregates on photocatalytic efficiency in aqueous suspensions

Authors: Tolosana-Moranchel, A; Pecharroman, C; Faraldos, M; Bahamonde, A

Article.
Chem. Eng. J.. vol: 403. page: 1385-8947.
Date: JAN 1. 2021.
Doi: 10.1016/j.cej.2020.126186.

Abstract:
This work examines the important role of light power absorbed by TiO2 on the photocatalytic degradation of dichloroacetic acid (DCA) in a semi-continuous slurry photoreactor with UV-Vis radiation. This system is an excellent model for understanding the light [read more]

Glycerol Oxidation over Supported Gold Catalysts: The Combined Effect of Au Particle Size and Basicity of Support

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

Article.
Processes. vol: 8. page: .
Date: SEP. 2020.
Doi: 10.3390/pr8091016.

Abstract:
Gold nanoparticles supported on various oxides (CeO2, CeO2/TiO2, MgO, MgO/TiO2, La2O3, La2O3/TiO2) (with 4 wt.% Au loading) were investigated in the liquid (aqueous) phase oxidation of glycerol by molecular [read more]

2020-09-05T00:00:00+02:00Categories: Publications 2020|Tags: , |

Photocatalytic toluene degradation: braiding physico-chemical and intrinsic kinetic analyses

Authors: Caudillo-Flores, U; Fernandez-Garcia, M; Kubacka, A

Article.
REACT. CHEM. ENG.. vol: 5. page: 2058-9883.
Date: AUG 1. 2020.
Doi: 10.1039/d0re00211a.

Abstract:
In this study, we analyzed the photocatalytic degradation of toluene using composite systems consisting of a tungsten oxide component supported on a pure anatase phase. To scrutinize the photocatalytic process, herein we presented a new method with combined spectroscopic and [read more]

Immobilization of gold on short -channel mesoporous SBA-15 functionalized with thiol and hydrophobic groups for oxidation reactions

Authors: Valdes, RD; Agundez, J; Marquez-Alvarez, C; Perez-Pariente, J

Article.
Catal. Today. vol: 354. page: 0920-5861.
Date: sep-12. 2020.
Doi: 10.1016/j.cattod.2019.09.014.

Abstract:
Nanosized gold entities immobilized on short -channel SBA -15 mesoporous materials functionalized solely with mercaptopropyl groups and together with propyl and octyl moieties have been prepared following a two-steps procedure. These materials have been used as catalysts for the [read more]

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