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Hierarchical Durian‐Shaped Dodecahedral Rutile Microparticles
Author(s) -
Liu Jia,
Yang Xianfeng,
Wen Yuping,
Gao Qiong,
Zhou Qiang,
Liang Chaolun,
Wu Mingmei
Publication year - 2011
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201100475
Subject(s) - rutile , selected area diffraction , chemistry , scanning electron microscope , powder diffraction , transmission electron microscopy , chemical engineering , hydrothermal synthesis , titanium , hydroxide , dodecahedron , oxalic acid , hydrate , oxalate , crystallography , hydrothermal circulation , nanotechnology , inorganic chemistry , materials science , composite material , organic chemistry , engineering
Hierarchical durian‐shaped dodecahedrons of rutile have been synthesized hydrothermally from titanium n ‐butoxide (TNB) in oxalic acid. The products are characterized by powder X‐ray diffraction (PXRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and selected‐area electron diffraction (SAED) and the hierarchical architectures of these dodecahedrons have been addressed. It is suggested that the growth of the hierarchical rutile architectures is directly from a precursor, titanium oxide oxalate hydroxide hydrate [Ti 2 O 2 (C 2 O 4 )(OH) 2 · H 2 O, briefly denoted as TOOHH], which can be formed at an earlier stage during hydrothermal synthesis, typically at lower reaction temperature. The production of the novel hierarchical nanostructure is attributed to epitaxial growth along some specific directions and the chemical etching and growth is due to similarities of corner‐sharing TiO 2 octahedrons between rutile and TOOHH.