The prepn. of large arrays of iron oxide (α-Fe2O3) and iron oxyhydroxide (β-FeOOH) as monodisperse perpendicular single-cryst. nanorods grown directly onto a polycryst. (or single-cryst.) substrate from an aq. soln. of ferric salts, without any template, membrane nor surfactant is described.
Michael Graetzel, Shaik Mohammed Zakeeruddin, Nathália Carolina Verissimo
César Pulgarin, Stefanos Giannakis, Giulio Farinelli, Ogadimma Cassandra Oji-Okoro