Carbothermally generated copper-molybdenum carbide supported on graphite for the CO2 hydrogenation to methanol

Autores: Dongil, AB; Conesa, JM; Pastor-Perez, L; Sepulveda-Escribano, A; Guerrero-Ruiz, A; Rodriguez-Ramos, I

Artículo; Early Access.
Catal. Sci. Technol.. vol: . page: 2044-4753.
Fecha: . .
Doi: 10.1039/d1cy00410g.

The carbothermal synthesis of monometallic and bimetallic molybdenum carbide and copper, supported on high surface area graphite (H), has been studied by in situ XRD, XPS, D-2-TPD, TEM/STEM, TG-mass spectrometry, and N-2 adsorption. [read more]

2021-05-15T10:13:37+02:00Categories: Publications 2021|Tags: , |

Insight into the mechanism of the water-gas shift reaction over Au/CeO2 catalysts using combined operando spectroscopies

Authors: Ziemba, M; Ganduglia-Pirovano, MV; Hess, C

Faraday Discuss.. vol: 229. page: 1359-6640.
Date: may-01. 2021.
Doi: 10.1039/c9fd00133f.

The mechanism of the low-temperature water-gas shift (LT-WGS) reaction over Au/CeO2 catalysts with different ceria terminations, i.e., (111), (110), and (100) facets, was investigated. Using combined operando Raman and UV-Vis spectroscopy as well as isotope exchange experiments, we are able to draw [read more]

2021-05-01T00:00:00+02:00Categories: Publications 2021|Tags: , |

Geranyl Functionalized Materials for Site-Specific Co-Immobilization of Proteins

Authors: Brabcova, J; Andreu, A; Aguilera, D; Cabrera, Z; de las Rivas, B; Munoz, R; Palomo, JM

Molecules. vol: 26. page: .
Date: MAY. 2021.
Doi: 10.3390/molecules26103028.

Different materials containing carboxylic groups have been functionalized with geranyl-amine molecules by using an EDC/NHS strategy. Chemical modification of the support was confirmed by XRD, UV-spectrophotometer, and FT-IR. This geranyl-functionalized material was successfully [read more]

In Situ Conditioning of CO2-Rich Syngas during the Synthesis of Methanol

Authors: Peinado, C; Liuzzi, D; Sanchis, A; Pascual, L; Pena, MA; Boon, J; Rojas, S

Catalysts. vol: 11. page: .
Date: MAY. 2021.
Doi: 10.3390/catal11050534.

The synthesis of methanol from biomass-derived syngas can be challenging because of the high CO2 content in the bio-syngas, resulting in lower kinetics and higher catalyst deactivation. This work explores the in situ pre-treatment of [read more]

2021-05-01T00:00:00+02:00Categories: Publications 2021|Tags: , |

Photoelectrocatalytic detection of NADH on n-type silicon semiconductors facilitated by carbon nanotube fibers

Autores: del Barrio, M; Rana, M; Vilatela, JJ; Lorenzo, E; De Lacey, AL; Pita, M

Electrochim. Acta. vol: 377. page: 0013-4686.
Fecha: may-01. 2021.
Doi: 10.1016/j.electacta.2021.138071.

NADH is a key biomolecule involved in many biocatalytic processes as cofactor and its quantification can be correlated to specific enzymatic activity. Many effort s have been taken to obtain clean electrochemical signals related [read more]

2021-05-15T10:11:13+02:00Categories: Publications 2021|Tags: |

Structure-directing study of 1-methylimidazolium-based dication with tetramethylene as spacer length in the synthesis of microporous silicoaluminophosphates dagger

Autores: Tavares, TK; Almeida, G; Variani, YM; Bernardo-Gusmao, K; Vinaches, P; Alcantara, ACS; Paiva, AEM; Gomez-Hortiguela, L; Rojas, A

Artículo; Early Access.
New J. Chem.. vol: . page: 1144-0546.
Fecha: . .
Doi: 10.1039/d0nj06163h.

In this work we study the structure-directing effect of 1-methylimidazolium-based dications that have four methylene units as the spacer length (4BI), as Organic Structure-Directing Agent (OSDA) in [read more]

2021-05-15T10:08:23+02:00Categories: Publications 2021|Tags: , |

Hyperspectral Imaging and Optical Trapping: Complementary Tools for Assessing Direction-Dependent Polarized Emission from Single Upconverting LiYF4:Yb3+/Er3+ Microparticles

Autores: Panov, N; Lu, DS; Ortiz-Rivero, E; Rodrigues, EM; Haro-Gonzalez, P; Jaque, D; Hemmer, E

Artículo; Early Access.
Adv. Opt. Mater.. vol: . page: 2195-1071.
Fecha: . .
Doi: 10.1002/adom.202100101.

Single-particle fluorescent probes with the capacity to infer specific intracellular conditions, for instance, have great application potential in the realm of biomedicine. Imaging techniques that improve our understanding of the fluorescence [read more]

The β-galactosidase immobilization protocol determines its performance as catalysts in the kinetically controlled synthesis of lactulose

Authors: Neto, CACG; Silva, NCGE; Costa, TD; de Albuquerque, TL; Goncalves, LRB; Fernandez-Lafuente, R; Rocha, MVP

Int. J. Biol. Macromol.. vol: 176. page: 0141-8130.
Date: APR 15. 2021.
Doi: 10.1016/j.ijbiomac.2021.02.078.

In this paper, 3 different biocatalysts of beta-galactosidase from Kluyveromyces lactis have been prepared by immobilization in chitosan activated with glutaraldehyde (Chi_Glu_Gal), glyoxyl agarose (Aga_Gly_Gal) and [read more]

Vapor phase acylation of guaiacol with acetic acid over micro, nano and hierarchical MFI and BEA zeolites

Autores: Gutierrez-Rubio, S; Shamzhy, M; Cejka, J; Serrano, DP; Moreno, I; Coronado, JM

Appl. Catal. B-Environ.. vol: 285. page: 0926-3373.
Fecha: may-15. 2021.
Doi: 10.1016/j.apcatb.2020.119826.

Vapor phase acylation of guaiacol with acetic acid was explored over a series of micro, nanocrystalline, and hierarchical MFI and BEA zeolites with different acidic and textural properties using a continuous flow reactor. The main [read more]

Study of the evolution of FeNxCy and Fe3C species in Fe/N/C catalysts during the oxygen reduction reaction in acid and alkaline electrolyte

Autores: Garcia, A; Pascual, L; Ferrer, P; Gianolio, D; Held, G; Grinter, DC; Pena, MGA; Retuerto, M; Rojas, S

J. Power Sources. vol: 490. page: 0378-7753.
Fecha: APR 1. 2021.
Doi: 10.1016/j.jpowsour.2021.229487.

The nature and evolution of FeNxCy moieties in Fe/C/N catalysts has been studied by analysing Fe and N environments. TEM and Fe-XAS reveal the presence of FeNx moieties [read more]


septiembre 2021
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