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Oriented TiO 2 Nanostructured Pillar Arrays: Synthesis and Characterization
Author(s) -
Cesano Federico,
Bertarione Serena,
Damin Alessandro,
Agostini Giovanni,
Usseglio Sandro,
Vitillo Jenny G.,
Lamberti Carlo,
Spoto Giuseppe,
Scarano Domenica,
Zecchina Adriano
Publication year - 2008
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200702768
Subject(s) - pillar , anatase , materials science , rutile , characterization (materials science) , nanocrystal , nanotechnology , phase (matter) , nanoparticle , chemical engineering , carbon fibers , composite number , composite material , photocatalysis , catalysis , organic chemistry , mechanical engineering , engineering , chemistry
Nanostructured parallelly oriented TiO 2 micropillar arrays , either pure or implanted on a carbon matrix, are prepared via controlled oxidation of hybrid carbonaceous systems. Mild oxidation at 500 °C (O 2 1%) leads to formation of parallelly oriented elongated TiO 2 pillars, which emerge from a compact α ‐C phase (TiO 2 /C composite). Under strong oxidation conditions (O 2 10%) formation of pure TiO 2 pillar arrays is observed. The pillars constituted of partially cemented anatase or anatase/rutile nanoparticles.