Publication: Dynamics and control of active sites in cobalt diselenide catalysts for overall water electrolysis
Dynamics and control of active sites in cobalt diselenide catalysts for overall water electrolysis
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Zhao, Y., Dongfang, N., Erni, R., Mauri-Iannuzzi, M., & Patzke, G. R. (2025). Dynamics and control of active sites in cobalt diselenide catalysts for overall water electrolysis. Nature Communications, 16, 10293. https://doi.org/10.1038/s41467-025-65210-3
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Identification of the true catalytically active species/sites is crucial for catalyst design. Herein, we combine complementary operando surface/bulk sensitive spectroscopic techniques and density functional theory calculations to establish clear structure-activity relations for marcasite- and pyrite-type CoSe2 toward overall water splitting. Our results reveal that under acidic conditions marcasite CoSe2 undergoes slight surface corrosion, producing disordered Se-Co-Se moieties for catalyzing the hydrogen evolution reaction (HER). In
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Zhao, Y., Dongfang, N., Erni, R., Mauri-Iannuzzi, M., & Patzke, G. R. (2025). Dynamics and control of active sites in cobalt diselenide catalysts for overall water electrolysis. Nature Communications, 16, 10293. https://doi.org/10.1038/s41467-025-65210-3
