What question did this study set out to answer?

This research aims to improve alkaline oxygen evolution reactions by utilizing selenium-activated layered double hydroxide electrodes.

May 3, 20262 citations

Selenium-activated monolithic FeNi layered double hydroxide electrodes: binder-free, self-supported architectures for durable alkaline oxygen evolution.

AHAlaa HassanAmerican University in Cairo GKGhada E. KhedrEgyptian Petroleum Research Institute AGAya K. GomaaAmerican University in Cairo

Key Points

This research aims to improve alkaline oxygen evolution reactions by utilizing selenium-activated layered double hydroxide electrodes.
Incorporation of selenium to modulate Fe/Ni electronic structure and enhance active surface area and kinetics.
Assessment of faradaic efficiency and mechanical robustness of the binder-free LDH architecture.
Achieved faradaic efficiency of approximately 97.5%.
Selenium activation significantly enhanced charge-transfer kinetics.
The architecture was confirmed to be mechanically robust and scalable.

Abstract

is achieved. Selenium incorporation modulates the electronic structure of Fe/Ni centers, enhances active surface area and charge-transfer kinetics, and maintains high faradaic efficiency (∼97.5%). This work establishes selenium activation in a binder-free monolithic LDH platform as a scalable, mechanically robust strategy for high-performance alkaline OER.

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