Figure 6.

SEM micrographs of samples with 20 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 20 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.