Functionalization and Area-Selective Deposition of Magnetic Carbon-Coated Iron Nanoparticles from Solution

Figure 1

Two-step transformation of the as-synthesized core-shell iron nanoparticles with an amorphous and graphitic carbon coating (I) into ester functionalized core-shell nanoparticles (III). Step (a), treatment with aqueous HNO₃, gives particles with a graphitic coating and carboxylic acid functional groups (II), and step (b), base and octyl bromide, transforms the acid groups into esters (III).