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Shape Evolution of Pb (Zr,Ti)O 3 Nanocrystals Under Hydrothermal Conditions
Author(s) -
Ren Zhaohui,
Xu Gang,
Wei Xiao,
Liu Yong,
Shen Ge,
Han Gaorong
Publication year - 2007
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.1551-2916.2007.01783.x
Subject(s) - nanocrystal , nanorod , hydrothermal circulation , materials science , vinyl alcohol , chemical engineering , morphology (biology) , nanowire , particle (ecology) , nanotechnology , composite material , oceanography , biology , geology , engineering , genetics , polymer
Pb (Zr,Ti)O 3 nanocrystals with different morphologies have been prepared hydrothermally with poly(vinyl alcohol) (PVA) and poly(acrylic acid) (PAA) as surfactants. The morphology of Pb (Zr,Ti)O 3 nanocrystals develops from a particle to a rod and then a wire by adjusting the ratio of PVA/PAA and reaction time in a hydrothermal system. The mixed surfactant system has been shown to promote anisotropic growth effectively and thus the formation of nanorods and single crystalline nanowires of Pb (Zr,Ti)O 3 . A possible mechanism for such a shape evolution of nanocrystals is simply discussed.