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S incorporated RuO2-based nanorings for active and stable water oxidation in acid
Ist Teil von
Nano research, 2022-05, Vol.15 (5), p.3964-3970
Ort / Verlag
Beijing: Tsinghua University Press
Erscheinungsjahr
2022
Link zum Volltext
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
The design of highly active and stable RuO
2
-based nanostructures for acidic oxygen evolution reaction (OER) is extremely important for the development of water electrolysis technology, yet remains great challenges. We here demonstrate that the incorporation of S into RuCuO nanorings (NRs) can significantly enhance the acidic OER performance. Experimental investigations show that the incorporation of S can optimize the interaction of Ru and O, and therefore significantly suppresses the dissolution of Ru in acidic condition. The optimized catalyst (S
H
-RuCuO NRs) displays superior OER performance to the commercial RuO
2
/C. Impressively, the S
H
-RuCuO NRs can exhibit significantly enhanced stability for 3,000 cycles of cyclic voltammetry test and more than 250 h chronopotentiometry test at 10 mA·cm
−2
in 0.5 M H
2
SO
4
. This work highlights a potential strategy for designing active and stable RuO
2
-based electrocatalysts for acidic OER.