0000000001307524
AUTHOR
Sergio Navalón
showing 16 related works from this author
Design of stable mixed-metal MIL-101(Cr/Fe) materials with enhanced catalytic activity for the Prins reaction
2020
[EN] This work highlights the benefit of designing mixed-metal (Cr/Fe) MOFs for enhanced chemical stability and catalytic activity. A robust and stable mixed-metal MIL-101(Cr/Fe) was prepared through a HF-free direct hydrothermal route with Fe(3+)content up to 21 wt%. The incorporation of Fe(3+)cations in the crystal structure was confirmed by(57)Fe Mossbauer spectrometry. The catalytic performance of the mixed metal MIL-101(Cr/Fe) was evaluated in the Prins reaction. MIL-101(Cr/Fe) exhibited a higher catalytic activity compared to MIL-101(Cr), improved chemical stability compared to MIL-101(Fe) and a higher catalytic activity for bulky substrates compared to MIL-100(Fe).In situinfra-red sp…
Selective Implantation of Diamines for Cooperative Catalysis in Isoreticular Heterometallic Titanium–Organic Frameworks
2021
[EN] We introduce the first example of isoreticular titanium-organic frameworks, MUV-10 and MUV-12, to show how the different affinity of hard Ti(IV) and soft Ca(II) metal sites can be used to direct selective grafting of amines. This enables the combination of Lewis acid titanium centers and available -NH, sites in two sizeable pores for cooperative cycloaddition of CO2 to epoxides at room temperature and atmospheric pressure. The selective grafting of molecules to heterometallic clusters adds up to the pool of methodologies available for controlling the positioning and distribution of chemical functions in precise positions of the framework required for definitive control of pore chemistr…
A highly stable and hierarchical tetrathiafulvalene-based metal organic framework with improved performance as a solid catalyst
2018
[EN] Herein we report the synthesis of a tetrathiafulvalene (TTF)-based MOF, namely MUV-2, which shows a non-interpenetrated hierarchical crystal structure with mesoporous one-dimensional channels of ca. 3 nm and orthogonal microporous channels of ca. 1 nm. This highly stable MOF (aqueous solution with pH values ranging from 2 to 11 and different organic solvents), which possesses the well-known [Fe3(¿3-O)(COO)6] secondary building unit, has proven to be an efficient catalyst for the aerobic oxidation of dibenzothiophenes.
Innentitelbild: Selective Implantation of Diamines for Cooperative Catalysis in Isoreticular Heterometallic Titanium–Organic Frameworks (Angew. Chem.…
2021
Inside Cover: Selective Implantation of Diamines for Cooperative Catalysis in Isoreticular Heterometallic Titanium–Organic Frameworks (Angew. Chem. I…
2021
Design of cost-efficient and photocatalytically active Zn-based MOFs decorated with Cu 2 O nanoparticles for CO 2 methanation
2019
<div>Here we show for the first time a MOF that is photocatalytically</div><div>active for the light-assisted CO<sub>2</sub> methanation at mild conditions</div><div>(215 °C) without the inclusion of metallic nanoparticles or any</div><div>sacrificial agent. The presence of Cu<sub>2</sub>O nanoparticles causes a 50 % increase in the photocatalytic activity. These results pave the way to developping efficient and cost-effective materials for CO<sub>2</sub> elimination.</div>
Alteration of the Mitochondrial Effects of Ceria Nanoparticles by Gold: An Approach for the Mitochondrial Modulation of Cells Based on Nanomedicine
2020
Ceria nanoparticles are cell compatible antioxidants whose activity can be enhanced by gold deposition and by surface functionalization with positive triphenylphosphonium units to selectively target the mitochondria. The antioxidant properties of these nanoparticles can serve as the basis of a new strategy for the treatment of several disorders exhibiting oxidative stress, such as cancer, diabetes or Alzheimer&rsquo
Metal Node Control of Brønsted Acidity in Heterobimetallic Titanium–Organic Frameworks
2023
Compared to indirect framework modification, synthetic control of cluster composition can be used to gain direct access to catalytic activities exclusive of specific metal combinations. We demonstrate this concept by testing the aminolysis of epoxides with a family of isostructural mesoporous frameworks featuring five combinations of homometallic and heterobimetallic metal-oxo trimers (Fe3, Ti3, TiFe2, TiCo2, and TiNi2). Only TiFe2 nodes display activities comparable to benchmark catalysts based on grafting of strong acids, which here originate from the combination of Lewis Ti4+ and Brønsted Fe3+–OH acid sites. The applicability of MUV-101(Fe) to the synthesis of β-amino a…
CCDC 1916087: Experimental Crystal Structure Determination
2019
Related Article: María Cabrero-Antonino, Sonia Remiro-Buenamañana, Manuel Souto, Antonio A. García-Valdivia, Duane Choquesillo-Lazarte, Sergio Navalón, Antonio Rodríguez-Diéguez, Guillermo Mínguez Espallargas, Hermenegildo García|2019|Chem.Commun.|55|10932|doi:10.1039/C9CC04446A
CCDC 1579606: Experimental Crystal Structure Determination
2018
Related Article: Manuel Souto, Andrea Santiago-Portillo, Miguel Palomino, Iñigo J. Vitórica-Yrezábal, Bruno J. C. Vieira, João C. Waerenborgh, Susana Valencia, Sergio Navalón, Fernando Rey, Hermenegildo García, Guillermo Mínguez Espallargas|2018|Chemical Science|9|2413|doi:10.1039/C7SC04829G
CCDC 1916085: Experimental Crystal Structure Determination
2019
Related Article: María Cabrero-Antonino, Sonia Remiro-Buenamañana, Manuel Souto, Antonio A. García-Valdivia, Duane Choquesillo-Lazarte, Sergio Navalón, Antonio Rodríguez-Diéguez, Guillermo Mínguez Espallargas, Hermenegildo García|2019|Chem.Commun.|55|10932|doi:10.1039/C9CC04446A
CCDC 1916082: Experimental Crystal Structure Determination
2019
Related Article: María Cabrero-Antonino, Sonia Remiro-Buenamañana, Manuel Souto, Antonio A. García-Valdivia, Duane Choquesillo-Lazarte, Sergio Navalón, Antonio Rodríguez-Diéguez, Guillermo Mínguez Espallargas, Hermenegildo García|2019|Chem.Commun.|55|10932|doi:10.1039/C9CC04446A
CCDC 1916084: Experimental Crystal Structure Determination
2019
Related Article: María Cabrero-Antonino, Sonia Remiro-Buenamañana, Manuel Souto, Antonio A. García-Valdivia, Duane Choquesillo-Lazarte, Sergio Navalón, Antonio Rodríguez-Diéguez, Guillermo Mínguez Espallargas, Hermenegildo García|2019|Chem.Commun.|55|10932|doi:10.1039/C9CC04446A
CCDC 1916086: Experimental Crystal Structure Determination
2019
Related Article: María Cabrero-Antonino, Sonia Remiro-Buenamañana, Manuel Souto, Antonio A. García-Valdivia, Duane Choquesillo-Lazarte, Sergio Navalón, Antonio Rodríguez-Diéguez, Guillermo Mínguez Espallargas, Hermenegildo García|2019|Chem.Commun.|55|10932|doi:10.1039/C9CC04446A
CCDC 2018540: Experimental Crystal Structure Determination
2021
Related Article: Elena López‐Maya, Natalia M. Padial, Javier Castells‐Gil, Carolina R. Ganivet, Ana Rubio‐Gaspar, Francisco G. Cirujano, Neyvis Almora‐Barrios, Sergio Tatay, Sergio Navalón, Carlos Martí‐Gastaldo|2021|Angew.Chem.,Int.Ed.|60|11868|doi:10.1002/anie.202100176
CCDC 1916083: Experimental Crystal Structure Determination
2019
Related Article: María Cabrero-Antonino, Sonia Remiro-Buenamañana, Manuel Souto, Antonio A. García-Valdivia, Duane Choquesillo-Lazarte, Sergio Navalón, Antonio Rodríguez-Diéguez, Guillermo Mínguez Espallargas, Hermenegildo García|2019|Chem.Commun.|55|10932|doi:10.1039/C9CC04446A