Untangling the Mechanisms in Magneto‐Electrocatalytic Oxygen Evolution DOI Creative Commons

Amy Radford,

Dorottya Szalay,

Qiming Chen

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: May 2, 2025

Abstract External magnetic fields emerge as a promising method for enhancing the electrocatalytic oxygen evolution reaction (OER), yet underlying magneto‐electric (ME) mechanisms are not well understood. The slow kinetics of OER make it key challenge in water‐splitting, technique sustainable H 2 fuel production. Herein, systematic approach is presented to analyzing ME governing OER, using metallic‐plate (Ni foam, Ni sheet, and Pt sheet) powder‐based (Co 3 O 4 /BaFe 12 19 on carbon paper) electrodes. Through controlled experiments varying field strengths orientations, Lorentz force spin‐polarization separated. For metallic electrodes, effects orientation‐dependent, indicating domination by force. Magnetic flux density about electrode surface shown govern behavior. Interestingly, “pseudo” effect discovered which results from relative position reference electrode, highlighting importance experimental design. Co systems display minimal orientation dependence, domination. Introducing BaFe co‐catalyst further amplifies effect, marking first demonstration enhancement magneto‐electrocatalysis. This work provides insights into mechanisms, linking composition, magnetism, geometry performance, offering new pathways optimizing future magneto‐electrocatalytic systems.

Language: Английский

Comparative analysis of integrating different power cycles into a concentrated solar power plant DOI

Mohamed Elamine Abdesselem,

Taqiy Eddine Boukelia, Mohamed Salah Mecibah

et al.

Solar Energy Materials and Solar Cells, Journal Year: 2025, Volume and Issue: 285, P. 113534 - 113534

Published: Feb. 24, 2025

Language: Английский

Citations

0
Untangling the Mechanisms in Magneto‐Electrocatalytic Oxygen Evolution DOI Creative Commons

Amy Radford,

Dorottya Szalay,

Qiming Chen

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: May 2, 2025

Abstract External magnetic fields emerge as a promising method for enhancing the electrocatalytic oxygen evolution reaction (OER), yet underlying magneto‐electric (ME) mechanisms are not well understood. The slow kinetics of OER make it key challenge in water‐splitting, technique sustainable H 2 fuel production. Herein, systematic approach is presented to analyzing ME governing OER, using metallic‐plate (Ni foam, Ni sheet, and Pt sheet) powder‐based (Co 3 O 4 /BaFe 12 19 on carbon paper) electrodes. Through controlled experiments varying field strengths orientations, Lorentz force spin‐polarization separated. For metallic electrodes, effects orientation‐dependent, indicating domination by force. Magnetic flux density about electrode surface shown govern behavior. Interestingly, “pseudo” effect discovered which results from relative position reference electrode, highlighting importance experimental design. Co systems display minimal orientation dependence, domination. Introducing BaFe co‐catalyst further amplifies effect, marking first demonstration enhancement magneto‐electrocatalysis. This work provides insights into mechanisms, linking composition, magnetism, geometry performance, offering new pathways optimizing future magneto‐electrocatalytic systems.

Language: Английский

Citations

0