Fig. 7. (a) Polarization curves recorded at 5 mV s−1 after different numbers of voltammetric cycles in nitrogen saturated 1 M KOH electrolyte, (b) schematic showing removal of the carbon shell surrounding fcc-Ni particles to be redistributed within the Si–C–O–N(H) matrix under working conditions in a 1 M KOH electrolyte.
