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. 2022 May 10;12(22):13932–13937. doi: 10.1039/d2ra02671f

Fig. 5. (a) High-resolution XPS spectra of Ru 3p; (b) N2 adsorption–desorption isotherm of Ru/N-C; (c) cyclic voltammetry curves of Ru/N-C at various scan rates from 5–50 mV s−1 in the region of 0.20–0.28 V vs. RHE; (d) Cdl comparison of Ru/N-C, commercial Pt/C, Pd/N-C and Ag/N-C.

Fig. 5