Figure 3

(a-d) The FESEM microstructural pattern of CoA-TA metallogel; (e) Bright field TEM image of CoA-TA metallogel; (f) shows Co nano particle distribution marked by white arrows; (g) SEAD pattern of Co nanoparticles; (h) HRTEM of Co nanoparticle inside; (i, j) Size of Co nanoparticles and the average area of this nanoparticle is determined by the histogram plot; (k, l) The corresponding region for elemental mapping is shown in STEM; (m-p) Elemental composition of C, O, Co and N are mapped by STEM EDX.