Výsledky vyhledávání - "Karina Muñoz-Becerra"

Akademický článek

Structural and Electronic Properties of Polyoxovanadoborates Containing the [V12B18O60] Core in Different Mixed Valence States

Autor: Patricio Hermosilla-Ibáñez, Karina Muñoz-Becerra, Verónica Paredes-García, Eric Le Fur, Evgenia Spodine, Diego Venegas-Yazigi

Publikováno v: Inorganics, Vol 3, Iss 3, Pp 309-331 (2015)

This review summarizes all published data until April 2015 related to crystalline lattices formed by the [V12B18O60] core, which generates polyanionic clusters with different degrees of protonation and mixed-valence ratios. The negative charge of thi

Externí odkaz: https://doaj.org/article/a6db7eef9a8c481496249778bda8b2b9

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Recent advances of Fe–N–C pyrolyzed catalysts for the oxygen reduction reaction

Autor: F.J. Recio, Ricardo Venegas, Karina Muñoz-Becerra, José H. Zagal, Luis Duque

Publikováno v: Current Opinion in Electrochemistry. 23:154-161

This review summarizes recent advances in the development of pyrolyzed M–N–C catalysts for the oxygen reduction reaction, focusing on activity, stability, and the reactivity descriptors proposed for the rational design of pyrolyzed M–N–C cata

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c8aeb0c05f3d1bd39b13e23d07adf2b8
https://doi.org/10.1016/j.coelec.2020.08.006

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Fe3O4 Templated Pyrolyzed Fe N C Catalysts. Understanding the role of N-Functions and Fe3C on the ORR Activity and Mechanis

Autor: Ricardo Venegas, César Zúñiga, José H. Zagal, Alejandro Toro‐Labbé, José F. Marco, Nieves Menéndez, Karina Muñoz‐Becerra, Francisco J. Recio

Publikováno v: Biblos-e Archivo. Repositorio Institucional de la UAM
Universidad Camilo José Cela (UCJC)
Digital.CSIC. Repositorio Institucional del CSIC
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15 pags., 9 figs., 2 tabs.
Pyrolyzed non-precious metal catalysts have been proposed as an alternative to substitute the expensive and scarce noble metal catalysts in several conversion energy reactions. For the oxygen reduction reaction (ORR),

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d449600233a6db6dd8706173382b65f
http://hdl.handle.net/10486/703088

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Strategies to improve the catalytic activity and stability of bioinspired Cu molecular catalysts for the ORR

Autor: Karina Muñoz-Becerra, José H. Zagal, Ricardo Venegas, Francisco J. Recio

Publikováno v: Biblos-e Archivo. Repositorio Institucional de la UAM
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The oxygen reduction reaction (ORR) is essential for energy conversion devices such as fuel cells and metal-air batteries. The use of expensive and scarce noble metal materials to catalyze the ORR is a limitation for the massification of these energy

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6712163e94462a725a7ca9c60a6a4837
http://hdl.handle.net/10486/703192

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Non-covalent interactions in hexanuclear polyoxidometalates [V(6)(IV)B(20)O(50)H8](8-) An experimental and theoretical approach

Autor: Eric Le Fur, Kerry Wrighton-Araneda, Karina Muñoz-Becerra, Jean-Yves Saillard, Olivier Cador, Verónica Paredes-García, Samia Kahlal, Diego Venegas-Yazigi

Publikováno v: Polyhedron
Polyhedron, Elsevier, 2022, 211, pp.115553. ⟨10.1016/j.poly.2021.115553⟩
Polyhedron, 2022, 211, pp.115553. ⟨10.1016/j.poly.2021.115553⟩

International audience; A complete study of the optical and magnetic properties of three new {V6-type} polyoxidometalates (NH3CH2CH2CH2NH3)(4){V6B20O50H8}center dot 4H(2)O 1, K-2(NH3CH2CH2NH3)(2.5)(NH3CH2CH2NH2){V6B20O50H8}center dot 2H(2)O 2, and K-

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a554508db2f513f159ed71434ff33e31
https://hal.archives-ouvertes.fr/hal-03464735/document

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Alkylated Benzodithienoquinolizinium Salts as Possible Non-Fullerene Organic N-Type Semiconductors: An Experimental and Theoretical Study

Autor: Cristian Valdebenito, Macarena García, Andrés Aracena, Octavio Vásquez, Marcos Caroli Rezende, Kerry Wrighton-Araneda, Freddy Celis, Karina Muñoz-Becerra

Publikováno v: Materials
Volume 14
Issue 21
Materials, Vol 14, Iss 6239, p 6239 (2021)

Three photobicyclized benzodithienoquinolizinium tetrafluoroborates (BPDTQBF4) were prepared and evaluated by UV–Vis and fluorescence spectral, electrochemical analysis, and by theoretical calculations as possible organic n-type semiconductors. Eva

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::93383716dfc1af5efe7138501fb3518e

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Proving ligand structure-reactivity correlation on multinuclear copper electrocatalysts supported on carbon black for the oxygen reduction reaction

Autor: Ricardo Venegas, Karina Muñoz-Becerra, Sophie Juillard, Lin Zhang, Rubén Oñate, Ingrid Ponce, Vincent Vivier, Francisco J. Recio, Carlos M. Sánchez-Sánchez

Publikováno v: Electrochimica Acta. 434:141304

Bioinspired transition-metal catalysts seek to mimic the specific active site of metalloenzymes, as the multicopper oxidase, that can efficiently reduce dioxygen to water via a complete 4-electrons mechanism at low overpotential. However, the multico

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fdfe3e066006d348d3cd12d97abb1108
https://doi.org/10.1016/j.electacta.2022.141304

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Theoretical and Experimental Reactivity Predictors for the Electrocatalytic Activity of Copper Phenanthroline Derivatives for the Reduction of Dioxygen

Autor: Ricardo Venegas, F.J. Recio, Alejandro Toro-Labbé, Luis Lemus, José H. Zagal, Karina Muñoz-Becerra

Publikováno v: The Journal of Physical Chemistry C. 123:19468-19478

We have systematically studied the catalytic activity of a series of substituted bisphenanthroline Cu complexes adsorbed on glassy carbon electrodes for the oxygen reduction reaction (ORR) in aqueo...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::621c13a707a5d7d955cb36801ae6ea9c
https://doi.org/10.1021/acs.jpcc.9b03200

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Substituent effects on the photophysical properties of amino-aurone-derivatives

Autor: Diego Cortés-Arriagada, Alejandro Toro-Labbé, César Zúñiga-Loyola, Nery Villegas-Escobar, Karina Muñoz-Becerra

Publikováno v: Molecular Physics. 117:1451-1458

Aurones are potential candidates to be employed as fluorescent probes or as pharmacophores for biological applications. This work describes a density functional theory (DFT) and time-dependent -DFT...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::98fa848424ff9948cb25ddca0c34e44d
https://doi.org/10.1080/00268976.2018.1559372

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