Journal
CRYSTAL RESEARCH AND TECHNOLOGY
Volume 45, Issue 7, Pages 767-770Publisher
WILEY-BLACKWELL
DOI: 10.1002/crat.201000145
Keywords
ionic liquid; hydrothermal synthesis; alumina; hierarchical nanostructures
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Funding
- National Natural of Science Foundation of China [20571044, 20971070]
- Project Fundamental and Applied Research of Tianjin
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The boehmite (Al2O3 center dot H2O) 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-pi-pi stack mechanism is used to be responsible for the present formation of the precursor hierarchical nanostructure. The gamma-Al2O3 hierarchical nanostructure was obtained by calcining the as-synthesized precursor at 500 degrees C for 2 h, preserving the same morphology. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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