Fig. 4. (a) HER polarization curves of SCnP/AuCs, SCnP, and bare carbon tape in 0.5 M phosphate buffer solution (pH 6.7). (b) Comparison of current densities for SCnP/AuCs and PET/AuCs at different potentials. Error bars indicate the standard deviations calculated from three runs with freshly deposited sample. (c) Valence band XPS spectra of SCnP/AuCs.
