Document Type
Article
Publication Version
Published Version
Publication Date
2005
Journal or Book Title
Chemistry of Materials
Volume
17
Issue
12
First Page
3092
Last Page
3100
DOI
10.1021/cm050315j
Abstract
Aluminas having hierarchical bimodal pore structures with regular arrayed macropores interconnected with mesopores were synthesized in a cone/plate apparatus that provided well-defined hydrodynamic I conditions. A parametric synthesis study was performed to better understand the synthesis conditions required to form the hierarchical structures. The synthesis experiments demonstrated that the hierarchnical structure could only be formed under limited mixing conditions. The mesoporous structure, which was created by interstitial porosity between boehmite nanoparticles, was formed independently of the macropores and was not significantly impacted by the use of a surfactant, whereas the formation of the macropores required the presence of an alkoxide droplet within the synthesis mixture and the surfactant played no role other than to influence the hydrodynamic conditions during synthesis.
Copyright Owner
American Chemical Society
Copyright Date
2005
Language
en
File Format
application/pdf
Recommended Citation
Deng, Weihua and Shanks, Brent H., "Synthesis of hierarchically structured aluminas under controlled hydrodynamic conditions" (2005). Chemical and Biological Engineering Publications. 234.
https://lib.dr.iastate.edu/cbe_pubs/234
Comments
Reprinted (adapted) with permission from Chemistry of Materials 17 (2005): 3092, doi: 10.1021/cm050315j. Copyright 2005 American Chemical Society.