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.

Resumen:
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]

2021-04-29T17:59:34+02:00Categories: Publications 2021|Tags: , |

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

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

Resumen:
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]

How oxidation state and lattice distortion influence the oxygen evolution activity in acid of iridium double perovskites

Autores: Retuerto, M; Pascual, L; Pique, O; Kayser, P; Salam, MA; Mokhtar, M; Alonso, JA; Pena, M; Calle-Vallejo, F; Rojas, S

Artículo.
J. Mater. Chem. A. vol: 9. page: 2050-7488.
Fecha: 10-mar. 2021.
Doi: 10.1039/d0ta10316k.

Resumen:
In view of iridium’s scarceness and high cost, Ir-containing catalysts for water electrolyzers should have low loadings and maximal utilization. Here, we studied low-Ir-content, highly active, [read more]

Pt-BiVO4/TiO2 composites as Z-scheme photocatalysts for hydrogen production from ethanol: the effect of BiVO4 and Pt on the photocatalytic efficiency

Autores: Mansour, S; Akkari, R; Soto, E; Ben Chaabene, S; Mota, N; Yerga, RNM; Fierro, JLG; Zina, MS

Artículo.
New J. Chem.. vol: 45. page: 1144-0546.
Fecha: mar-07. 2021.
Doi: 10.1039/d0nj05596d.

Resumen:
A series of BiVO4/TiO2 nanocomposites with high surface area have been synthesized by a sol-gel method combined with supercritical drying. BiVO4/TiO2 samples with different BiVO4 loadings were synthesized in order [read more]

2021-04-08T12:01:57+02:00Categories: Publications 2021|Tags: , |

Comparing Ligninolytic Capabilities of Bacterial and Fungal Dye-Decolorizing Peroxidases and Class-II Peroxidase-Catalases

Authors: Linde, D; Ayuso-Fernandez, I; Laloux, M; Aguiar-Cervera, JE; de Lacey, AL; Ruiz-Duenas, FJ; Martinez, AT

Article.
Int. J. Mol. Sci.. vol: 22. page: .
Date: MAR. 2021.
Doi: 10.3390/ijms22052629.

Abstract:
We aim to clarify the ligninolytic capabilities of dye-decolorizing peroxidases (DyPs) from bacteria and fungi, compared to fungal lignin peroxidase (LiP) and versatile peroxidase (VP). With this purpose, DyPs from Amycolatopsis [read more]

Effect of zeolite structure on the selective catalytic reduction of NO with ammonia over Mn-Fe supported on ZSM-5, BEA, MOR and FER

Autores: Ben Younes, N; Ortigosa, JM; Marie, O; Blasco, T; Mhamdi, M

Artículo; Early Access.
Res. Chem. Intermed.. vol: . page: 0922-6168.
Fecha: . .
Doi: 10.1007/s11164-020-04382-7.

Resumen:
A series of catalysts based on Mn-Fe loaded zeolites was prepared by impregnation and their activity in the selective catalytic reduction of NO with ammonia (NH3-SCR) was investigated. The highest catalytic conversion was recorded [read more]

2021-04-08T11:52:20+02:00Categories: Publications 2021|Tags: , |

How oxidation state and lattice distortion influence the oxygen evolution activity in acid of iridium double perovskites

Authors: Retuerto, M; Pascual, L; Pique, O; Kayser, P; Salam, MA; Mokhtar, M; Alonso, JA; Pena, M; Calle-Vallejo, F; Rojas, S

Article.
J. Mater. Chem. A. vol: 9. page: 2050-7488.
Date: feb-07. 2021.
Doi: 10.1039/d0ta10316k.

Abstract:
In view of iridium’s scarceness and high cost, Ir-containing catalysts for water electrolyzers should have low loadings and maximal utilization. Here, we studied low-Ir-content, highly active, [read more]

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: , |

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: , |

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