Arc-Discharge Synthesis of Iron Encapsulated in Carbon Nanoparticles for Biomedical Applications

Table 2

The iron core diameter average and its standard deviation of all our samples in relation to the two set parameters, He flow rate and ferrocene/isooctane concentration. Samples with 1.1 < 𝜎_𝑔 < 1.4 are quite monodisperse. Samples having 𝜎_𝑔 above 1.4 (He flow of 60 sccm and low ferrocene concentration) are bimodal.

He flow rate; (sccm)	Iron core size (nm)/geometric standard deviation, 𝜎𝑔
	[Ferrocene/isooctane] 1% w/w	[Ferrocene/isooctane] 2% w/w	[Ferrocene/isooctane] 4% w/w
30	8.18/1.22; (Figure 2(a))	5.43/1.34; (Figure 2(b))	5.34/1.33; (Figure 2(c))
60	6.23/1.47	6.12/1.46	5.22/1.22; (Figure 3)
120	5.22/1.25	—	—