Figure 7.

SEM micrographs of samples with 5 wt% Ni loading: (a) chloride precursor for Ni on the foam surface and (b) Ni on the foam surface, obtained after reduction of chloride precursor at 633 K.

SEM micrographs of samples with 5 wt% Ni loading: (a) chloride precursor for Ni on the foam surface and (b) Ni on the foam surface, obtained after reduction of chloride precursor at 633 K.