Oriented TiO2 Nanostructured Pillar Arrays: Synthesis and Characterization (pages 3342–3348)
Federico Cesano, Serena Bertarione, Alessandro Damin, Giovanni Agostini, Sandro Usseglio, Jenny G. Vitillo, Carlo Lamberti, Giuseppe Spoto, Domenica Scarano and Adriano Zecchina
Version of Record online: 14 JUL 2008 | DOI: 10.1002/adma.200702768
Nanostructured parallelly oriented TiO2 micropillar arrays, either pure or implanted on a carbon matrix, are prepared via controlled oxidation of hybrid carbonaceous systems. Mild oxidation at 500 °C (O2 1%) leads to formation of parallelly oriented elongated TiO2 pillars, which emerge from a compact α-C phase (TiO2/C composite). Under strong oxidation conditions (O2 10%) formation of pure TiO2 pillar arrays is observed. The pillars constituted of partially cemented anatase or anatase/rutile nanoparticles.