Synthesis of carbon nanocapsules and nanotubes using fe-doped fullerene nanowhiskers

Abstract

We synthesized iron-(Fe-)doped C60 nanowhiskers (NWs) by applying the liquid-liquid interfacial precipitation method that employs a C60-saturated toluene solution and a solution of 2-propanol containing ferric nitrate nonahydrate (Fe(NO3)39H2O). Fe particles of 3-7nm in diameter were precipitated in the NWs. By heating at 1173K, the NWs were transformed into hollow and Fe3C-encapsulated carbon nanocapsules and carbon nanotubes. Copyright © 2012 Tokushi Kizuka et al.