Lars-Åke Näslund, Arni Sigurdur Ingason
The catalytic and durable electrode coating of ruthenium dioxide (RuO₂), applied on nickel (Ni) substrates, is today utilized as electrocatalytic cathodes for hydrogen production, e.g., in the chlor-alkali process and alkaline water electrolysis. The drawback is, however, the sensitivity to reverse currents obtained during power shutdowns, e.g. at maintenance, where the RuO₂-based electrodes can be severely damaged unless polarization rectifiers are employed. Through the material characterization techniques X-ray diffraction and X-ray photoelectron spectroscopy we can now reveal that RuO₂ coatings, when exposed to hydrogen evolution at industrially relevant conditions, transforms into ruthenium oxyhydroxide (RuO(OH)₂). The study further shows that as the hydrogen evolution proceeds the formed RuO(OH)₂ reduces to metallic ruthenium (Ru).
@article{8ad826b4-a3be-4571-a76c-8032d0110f3a,
title={Formation of RuO OH 2 on RuO 2 Based Ele},
author={Lars-Åke Näslund and Arni Sigurdur Ingason},
year={2026},
language={en}
}TY - JOUR TI - Formation of RuO OH 2 on RuO 2 Based Ele AU - Lars-Åke Näslund AU - Arni Sigurdur Ingason PY - 2026 LA - en ER -
Unknown, Unknown
This chapter discusses metal casting processes, highlighting the diversity and common characteristics among them. The objective is to elucidate the fu
Unknown, Unknown
This study focuses on the fundamental characteristics of solid iron, which is predominantly composed of iron atoms and provides a basis for understand
Ir. Méshac KIME ILUNGA
Ce document traite des procédés métallurgiques spéciaux, en mettant particulièrement l'accent sur l'extraction liquide-liquide, un processus mis au po
Copper solvent extraction units at large hydrometallurgical plants face constraints in metal recovery, phase disengagement, and reagent consumption, d
Non spécifié
L'hydrométallurgie du cuivre, principalement axée sur les minerais oxydés facilement solubles, s'applique également aux minerais sulfurés ou mixtes ap