Premium
Synthesis of ZnO Microtubes by a Facile Aqueous Solution Process
Author(s) -
Lin Liwei,
Watanabe Hideo,
Fuji Masayoshi,
Endo Takeshi,
Yamashita Seiji,
Takahashi Minoru
Publication year - 2009
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2008.02682.x
Subject(s) - aqueous solution , zinc nitrate , zinc , materials science , chemical engineering , scanning electron microscope , ammonia , hexagonal crystal system , transmission electron microscopy , nanotechnology , atmospheric pressure , crystallography , chemistry , composite material , metallurgy , organic chemistry , oceanography , geology , engineering
Zinc oxide (ZnO) microtubes 1.0–2.5 μm in length, 300–500 nm in outer diameter, and 50–80 nm in wall thickness have been synthesized by a facile aqueous solution process, by simply dropping ammonia water into zinc chloride aqueous solution. This new method shows some advantages, such as synthesis under atmospheric pressure at a glass flask, low cost and easy control. The growth mechanism of ZnO microtubes is discussed in this paper. The different growth rates of ZnO crystal facets create the different crystallographic facets of hexagonal microtubes. And the polar structure results in the formation of ZnO microtubes for minimizing the spontaneous polarization energy. The dependence of morphologies of ZnO particles on the reaction temperature is also investigated. The scanning electron microscopy results show that the reaction temperature plays an important role in the morphologies of ZnO particles.