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Ionic liquid‐assisted hydrothermal synthesis of γ‐Al 2 O 3 hierarchical nanostructures
Author(s) -
Kim Tongil,
Li Haobo,
Lian Jiabiao,
Jin Huaihai,
Ma Jianmin,
Duan Xiaochuan,
Yao Gang,
Zheng Wenjun
Publication year - 2010
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.201000145
Subject(s) - ionic liquid , nanostructure , boehmite , bromide , calcination , hydrothermal circulation , chemical engineering , hydrothermal synthesis , ionic bonding , chemistry , hydrogen bond , morphology (biology) , materials science , nanotechnology , inorganic chemistry , ion , organic chemistry , molecule , catalysis , aluminium , engineering , biology , genetics
The boehmite (Al 2 O 3 ·H 2 O) hierarchical nanostructure with spindle‐like morphology has been successfully synthesized via ionic liquid‐assisted hydrothermal synthetic method under mild condition using an ionic liquid 1‐butyl‐3‐dimethylimidazolium bromide ([Bmim][Br]) as a template. The proposed formation mechanism has been investigated and the hydrogen bond‐ co‐π–π stack mechanism is used to be responsible for the present formation of the precursor hierarchical nanostructure. The γ‐Al 2 O 3 hierarchical nanostructure was obtained by calcining the as‐synthesized precursor at 500 °C for 2 h, preserving the same morphology. (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)