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Correlating the surface area and synthesis conditions of block co‐polymer templated mesoporous silica
Author(s) -
Harris A. T.,
Maddocks A. R.,
Braham R. J.
Publication year - 2009
Publication title -
asia‐pacific journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.348
H-Index - 35
eISSN - 1932-2143
pISSN - 1932-2135
DOI - 10.1002/apj.360
Subject(s) - mesoporous material , materials science , curing (chemistry) , mesoporous silica , chemical engineering , pulmonary surfactant , reagent , polymer , specific surface area , mesoporous organosilica , transmission electron microscopy , swelling , polymer chemistry , nanotechnology , chemistry , composite material , organic chemistry , catalysis , engineering
In this work we investigate the influence of (1) temperature, (2) curing (post reaction ageing) technique, (3) curing time, (4) surfactant (block co‐polymer) concentration, and (5) the addition of secondary (pore swelling) reagents on the surface area and structure of ordered hexagonal mesoporous silica (SBA‐15). We also investigate the use of microwave preparation and curing techniques, as a precursor to the development of large‐scale synthesis processes for mesoporous silica. Samples were analyzed using transmission electron microscopy and nitrogen pore size analysis. The results of the study show that it is possible to optimize the surface area of the final material in a reproducible way, by using higher hydrolysis temperatures or lower surfactant concentrations. Copyright © 2009 Curtin University of Technology and John Wiley & Sons, Ltd.