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Spontaneous Growth of Superstructure α ‐Fe 2 O 3 Nanowire and Nanobelt Arrays in Reactive Oxygen Plasma

2008; Wiley; Volume: 4; Issue: 10 Linguagem: Inglês

10.1002/smll.200800278

1613-6829

Uroš Cvelbar, Zhiqiang Chen, Mahendra K. Sunkara, Miran Mozetič,

Electrocatalysts for Energy Conversion

Direct plasma oxidation of iron substrates results in the nucleation and growth of α-Fe2O3 nanowire and nanobelt arrays (see image). The initial plasma heating in the early stages determines the nucleation density, and the growth of nanowires and nanobelts is a function of the temperature-dependent diffusion of iron atoms and the plasma radical flux on the surface.