Fig. 3

STEM–EDS images of Sample 1. (a) SEM image in the SEI mode, where the white areas indicate the pigment particles. Distributions of (b) carbon, (c) oxygen, (d) titanium, (e) iron, and (f) cobalt

STEM–EDS images of Sample 1. (a) SEM image in the SEI mode, where the white areas indicate the pigment particles. Distributions of (b) carbon, (c) oxygen, (d) titanium, (e) iron, and (f) cobalt