Fig. 5: Characterization and HER performance of Ru-ACs/CoNC and Ir-ACs/CoNC. | Nature Communications

Fig. 5: Characterization and HER performance of Ru-ACs/CoNC and Ir-ACs/CoNC.

From: Modulating Pt-O-Pt atomic clusters with isolated cobalt atoms for enhanced hydrogen evolution catalysis

Fig. 5

a, b STEM image and elemental mapping of Ru-ACs/CoNC. Scale bar: 2 and 50 nm. c, d STEM image and elemental mapping of Ir-ACs/CoNC. Scale bar: 2 and 50 nm. e The high-resolution XPS spectra of Co 2p in CoNC, Ru-ACs/CoNC and Ir-ACs/CoNC. f, g HER polarization curves of CoNC, Ru-ACs/CoNC, Ir-ACs/CoNC, Pt-ACs/CoNC and Pt/C in 0.5 M H2SO4 and 1 M KOH, respectively.

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