Morphological analysis of disordered macroporous-mesoporous solids based on physical reconstruction by nanoscale tomography.
Morphological analysis of disordered macroporous-mesoporous solids based on physical reconstruction by nanoscale tomography.
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基于纳米断层扫描物理重建的无序大孔-介孔固体形态分析
DOI:
10.1021/la502381m
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发表时间:
2014
期刊:
影响因子:
--
通讯作者:
U. Tallarek
中科院分区:
文献类型:
--
作者:
D. Stoeckel;C. Kübel;K. Hormann;A. Höltzel;B. M. Smarsly;U. Tallarek
Solids with a hierarchically structured, disordered pore space, such as macroporous–mesoporous silica monoliths, are used as fixed beds in separation and catalysis. Targeted optimization of their functional properties requires a knowledge of the relation among their synthesis, morphology, and mass transport properties. However, an accurate and comprehensive morphological description has not been available for macroporous–mesoporous silica monoliths. Here we offer a solution to this problem based on the physical reconstruction of the hierarchically structured pore space by nanoscale tomography. Relying exclusively on image analysis, we deliver a concise, accurate, and model-free description of the void volume distribution and pore coordination inside the silica monolith. Structural features are connected to key transport properties (effective diffusion, hydrodynamic dispersion) of macropore and mesopore space. The presented approach is applicable to other fixed-bed formats of disordered macroporous–mesoporous solids, such as packings of mesoporous particles and organic-polymer monoliths.
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DOI:
10.1021/la0613225
发表时间:
2006-11
期刊:
Langmuir : the ACS journal of surfaces and colloids
影响因子:
--
作者:
Yan Yao;K. Czymmek;R. Pazhianur;A. Lenhoff
通讯作者:
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DOI:
10.1016/j.chroma.2013.08.087
发表时间:
2013
期刊:
Journal of chromatography. A
影响因子:
--
作者:
K. Hormann;U. Tallarek
通讯作者:
U. Tallarek
影响因子:
4.1
作者:
Langford, J. F.;Schure, M. R.;Lenhoff, A. M.
通讯作者:
Lenhoff, A. M.
影响因子:
4.7
作者:
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通讯作者:
Xuechao Gao;J. D. Costa;S. Bhatia
DOI:
--
发表时间:
2004
期刊:
影响因子:
--
作者:
U. Ziese;K. D. Jong;A. Koster
通讯作者:
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