Artículo
Enhancement of electrocatalysis through magnetic field effects on mass transport
Vensaus, Priscila
; Liang, Yunchang; Ansermet, Jean Philippe; Soler Illia, Galo Juan de Avila Arturo
; Lingenfelder, Magalí Alejandra
Fecha de publicación:
04/2024
Editorial:
Nature Publishing Group
Revista:
Nature Communications
ISSN:
2041-1723
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Magnetic field effects on electrocatalysis have recently gained attention due to the substantial enhancement of the oxygen evolution reaction (OER) on ferromagnetic catalysts. When detecting an enhanced catalytic activity, the effect of magnetic fields on mass transport must be assessed. In this study, we employ a specifically designed magneto-electrochemical system and non-magnetic electrodes to quantify magnetic field effects. Our findings reveal a marginal enhancement in reactions with high reactant availability, such as the OER, whereas substantial boosts exceeding 50% are observed in diffusion limited reactions, exemplified by the oxygen reduction reaction (ORR). Direct visualization and quantification of the whirling motion of ions under a magnetic field underscore the importance of Lorentz forces acting on the electrolyte ions, and demonstrate that bubbles’ movement is a secondary phenomenon. Our results advance the fundamental understanding of magnetic fields in electrocatalysis and unveil new prospects for developing more efficient and sustainable energy conversion technologies.
Palabras clave:
ELECTROCATALYSIS
,
ENERGY
,
MATERIALS
,
SURFACES
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(SEDE CENTRAL)
Articulos de SEDE CENTRAL
Articulos de SEDE CENTRAL
Citación
Vensaus, Priscila; Liang, Yunchang; Ansermet, Jean Philippe; Soler Illia, Galo Juan de Avila Arturo; Lingenfelder, Magalí Alejandra; Enhancement of electrocatalysis through magnetic field effects on mass transport; Nature Publishing Group; Nature Communications; 15; 1; 4-2024; 1-11
Compartir
Altmétricas