Matches in SemOpenAlex for { <https://semopenalex.org/work/W4386304401> ?p ?o ?g. }
- W4386304401 abstract "Abstract Ruthenium exhibits comparable or even better alkaline hydrogen evolution reaction activity than platinum, however, the mechanistic aspects are yet to be settled, which are elucidated by combining in situ Raman spectroscopy and theoretical calculations herein. We simultaneously capture dynamic spectral evidence of Ru surfaces, interfacial water, *H and *OH intermediates. Ru surfaces exist in different valence states in the reaction potential range, dissociating interfacial water differently and generating two distinct *H, resulting in different activities. The local cation tuning effect of hydrated Na + ion water and the large work function of high-valence Ru(n+) surfaces promote interfacial water dissociation. Moreover, compared to low-valence Ru(0) surfaces, high-valence Ru(n+) surfaces have more moderate adsorption energies for interfacial water, *H, and *OH. They, therefore, facilitate the activity. Our findings demonstrate the regulation of valence state on interfacial water, intermediates, and finally the catalytic activity, which provide guidelines for the rational design of high-efficiency catalysts." @default.
- W4386304401 created "2023-09-01" @default.
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- W4386304401 date "2023-08-30" @default.
- W4386304401 modified "2023-10-16" @default.
- W4386304401 title "Revealing the role of interfacial water and key intermediates at ruthenium surfaces in the alkaline hydrogen evolution reaction" @default.
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- W4386304401 doi "https://doi.org/10.1038/s41467-023-41030-1" @default.
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