Fig. 4From: Burst nucleation by hot injection for size controlled synthesis of ε-cobalt nanoparticlesTEM images of ε-Co NPs from reproducibility experiments. Samples were synthesized at injection temperature 447 ± 0.5 K, \(\frac{[Co]}{[OA]} = 12.9,\) injection time = 5 s, reaction holding time = 1800 s. Their corresponding particle diameter distributions were obtained from evaluating ~250–500 particles. Scale bars 50 nmBack to article page