TY - JOUR
T1 - Mutual consistency between simulated and measured pressure drops in silica monoliths based on geometrical parameters obtained by three-dimensional laser scanning confocal microscope observations
AU - Saito, Haruko
AU - Nakanishi, Kazuki
AU - Hirao, Kazuyuki
AU - Jinnai, Hiroshi
N1 - Funding Information:
This work was supported by the computational materials science unit in Kyoto University by Japanese Ministry of Education, Culture, Sports, Science and Technology (MEXT).
PY - 2006/6/30
Y1 - 2006/6/30
N2 - The geometrical properties of co-continuous macroporous silica monoliths have been studied by laser scanning confocal microscopy (LSCM) and a comparison has been made with those obtained by conventional mercury intrusion method. Tetrahedral skeleton model (TMS), which mimics the gel skeleton shape of monoliths, was compared with real monoliths in terms of macropore and porosity using the geometrical parameters extracted from the LSCM observations. Liquid flow behavior through the macroporous silica monoliths was examined in comparison with those simulated using TSM, based on the geometrical properties obtained from LSCM observations. Heterogeneity in macropore topology and connectivity in pores and skeletons are suggested to contribute to the improvement of the model structure for macroporous monoliths.
AB - The geometrical properties of co-continuous macroporous silica monoliths have been studied by laser scanning confocal microscopy (LSCM) and a comparison has been made with those obtained by conventional mercury intrusion method. Tetrahedral skeleton model (TMS), which mimics the gel skeleton shape of monoliths, was compared with real monoliths in terms of macropore and porosity using the geometrical parameters extracted from the LSCM observations. Liquid flow behavior through the macroporous silica monoliths was examined in comparison with those simulated using TSM, based on the geometrical properties obtained from LSCM observations. Heterogeneity in macropore topology and connectivity in pores and skeletons are suggested to contribute to the improvement of the model structure for macroporous monoliths.
KW - Flow resistance
KW - Silica monolith
KW - Structural paremeters
KW - Tetrahedral skeleton model
KW - Three-dimensional observation
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U2 - 10.1016/j.chroma.2006.03.087
DO - 10.1016/j.chroma.2006.03.087
M3 - Article
C2 - 16616926
AN - SCOPUS:33744825230
VL - 1119
SP - 95
EP - 104
JO - Journal of Chromatography A
JF - Journal of Chromatography A
SN - 0021-9673
IS - 1-2
ER -