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| Autori principali: | , , , , , , , , , , , , , , , , |
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| Natura: | Preprint |
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2026
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| Soggetti: | |
| Accesso online: | https://arxiv.org/abs/2605.07437 |
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| _version_ | 1866915993400377344 |
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| author | Gaje, Arnold Li, Lulu Garcés-Pineda, Felipe A. Mesa, Camilo A. Abdolhosseini, Ghazaleh Kushwaha, Aditya K. Zalka, Dora Trzop, Elzbieta Godin, Nicolas Torchio, Raffaella Escudero-Escribano, María Collet, Eric Giménez, Sixto Keller, Niels Galán-Mascarós, José Ramón López, Núria Pastor, Ernest |
| author_facet | Gaje, Arnold Li, Lulu Garcés-Pineda, Felipe A. Mesa, Camilo A. Abdolhosseini, Ghazaleh Kushwaha, Aditya K. Zalka, Dora Trzop, Elzbieta Godin, Nicolas Torchio, Raffaella Escudero-Escribano, María Collet, Eric Giménez, Sixto Keller, Niels Galán-Mascarós, José Ramón López, Núria Pastor, Ernest |
| contents | A major challenge in electrochemistry is to decouple the reactive intermediates of a catalytic cycle to optimise their energies independently. During the oxygen evolution reaction (OER), such energy interdependence results from the need to generate multiple adsorbates at the same site and sets the minimum overpotential. Here, we show that an external stimulus, such as a magnetic field, can relax the scaling relationships between intermediates during the OER. Spectroscopic measurements and Density Functional Theory simulations in Ni-Fe oxyhydroxides reveal that applying a magnetic field alters surface chemisorption and injects structural flexibility at the interface. We interpret these observations as a consequence of stimulated changes in the spin-lattice coupling, which allow access to quasi-degenerate oxygenated intermediates that modulate the reaction energy demands. Our findings redefine the scaling limitations as state-projected rather than intrinsic and establish external stimulation as a strategy to navigate multi-state energy landscapes in electrocatalysis and sensing applications. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_07437 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Spin-lattice coupling enables adaptive adsorption in magnetically-driven electrocatalysts Gaje, Arnold Li, Lulu Garcés-Pineda, Felipe A. Mesa, Camilo A. Abdolhosseini, Ghazaleh Kushwaha, Aditya K. Zalka, Dora Trzop, Elzbieta Godin, Nicolas Torchio, Raffaella Escudero-Escribano, María Collet, Eric Giménez, Sixto Keller, Niels Galán-Mascarós, José Ramón López, Núria Pastor, Ernest Materials Science A major challenge in electrochemistry is to decouple the reactive intermediates of a catalytic cycle to optimise their energies independently. During the oxygen evolution reaction (OER), such energy interdependence results from the need to generate multiple adsorbates at the same site and sets the minimum overpotential. Here, we show that an external stimulus, such as a magnetic field, can relax the scaling relationships between intermediates during the OER. Spectroscopic measurements and Density Functional Theory simulations in Ni-Fe oxyhydroxides reveal that applying a magnetic field alters surface chemisorption and injects structural flexibility at the interface. We interpret these observations as a consequence of stimulated changes in the spin-lattice coupling, which allow access to quasi-degenerate oxygenated intermediates that modulate the reaction energy demands. Our findings redefine the scaling limitations as state-projected rather than intrinsic and establish external stimulation as a strategy to navigate multi-state energy landscapes in electrocatalysis and sensing applications. |
| title | Spin-lattice coupling enables adaptive adsorption in magnetically-driven electrocatalysts |
| topic | Materials Science |
| url | https://arxiv.org/abs/2605.07437 |