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Local quantificatio...
Local quantification of mesoporous silica microspheres using multiscale electron tomography and lattice Boltzmann simulations
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- Fijneman, Andreas J. (author)
- Technische Universiteit Eindhoven,Eindhoven University of Technology
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- Goudzwaard, Maurits (author)
- Technische Universiteit Eindhoven,Eindhoven University of Technology
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- Keizer, Arthur D.A. (author)
- Technische Universiteit Eindhoven,Eindhoven University of Technology
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- Bomans, Paul H.H. (author)
- Technische Universiteit Eindhoven,Eindhoven University of Technology
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- Gebäck, Tobias, 1977 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för matematiska vetenskaper,Department of Mathematical Sciences
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Palmlof, M. (author)
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Persson, Michael, 1956 (author)
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Högblom, Joakim (author)
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- de With, Gijsbertus (author)
- Technische Universiteit Eindhoven,Eindhoven University of Technology
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- Friedrich, Heiner (author)
- Technische Universiteit Eindhoven,Eindhoven University of Technology
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(creator_code:org_t)
- Elsevier BV, 2020
- 2020
- English.
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In: Microporous and Mesoporous Materials. - : Elsevier BV. - 1387-1811. ; 302
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Abstract
Subject headings
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- The multiscale pore structure of mesoporous silica microspheres plays an important role for tuning mass transfer kinetics in technological applications such as liquid chromatography. While local analysis of a pore network in such materials has been previously achieved, multiscale quantification of microspheres down to the nanometer scale pore level is still lacking. Here we demonstrate for the first time, by combining low convergence angle scanning transmission electron microscopy tomography (LC-STEM tomography) with image analysis and lattice Boltzmann simulations, that the multiscale pore network of commercial mesoporous silica microspheres can be quantified. This includes comparing the local tortuosity and intraparticle diffusion coefficients between different regions within the same microsphere. The results, spanning more than two orders of magnitude between nanostructures and entire object, are in good agreement with bulk characterization techniques such as nitrogen gas physisorption and add valuable local information for tuning mass transfer behavior (in liquid chromatography or catalysis) on the single microsphere level.
Subject headings
- NATURVETENSKAP -- Data- och informationsvetenskap -- Annan data- och informationsvetenskap (hsv//swe)
- NATURAL SCIENCES -- Computer and Information Sciences -- Other Computer and Information Science (hsv//eng)
- NATURVETENSKAP -- Data- och informationsvetenskap -- Datorseende och robotik (hsv//swe)
- NATURAL SCIENCES -- Computer and Information Sciences -- Computer Vision and Robotics (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Medicinteknik -- Medicinsk bildbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Medical Engineering -- Medical Image Processing (hsv//eng)
- NATURVETENSKAP -- Matematik (hsv//swe)
- NATURAL SCIENCES -- Mathematics (hsv//eng)
Keyword
- Scanning transmission electron microscopy
- Quantitative electron tomography
- Intraparticle diffusivity
- Lattice Boltzmann simulations
- Mesoporous silica
- Intraparticle diffusivity
- Lattice Boltzmann simulations
- Mesoporous silica
- Quantitative electron tomography
- Scanning transmission electron microscopy
Publication and Content Type
- art (subject category)
- ref (subject category)
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Fijneman, Andrea ...
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Goudzwaard, Maur ...
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Keizer, Arthur D ...
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Bomans, Paul H.H ...
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Gebäck, Tobias, ...
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Palmlof, M.
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Persson, Michael ...
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Högblom, Joakim
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de With, Gijsber ...
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Friedrich, Heine ...
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Computer and Inf ...
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and Other Computer a ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Computer and Inf ...
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and Computer Vision ...
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Medical Engineer ...
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and Medical Image Pr ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Mathematics
- Articles in the publication
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Microporous and ...
- By the university
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Chalmers University of Technology
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University of Gothenburg