Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 8041-8047 |
| Seitenumfang | 7 |
| Fachzeitschrift | Journal of the American Chemical Society |
| Jahrgang | 129 |
| Ausgabenummer | 25 |
| Publikationsstatus | Veröffentlicht - 27 Juni 2007 |
Abstract
The intracrystalline concentration profiles during molecular uptake of methanol by an initially empty, single crystal of microporous manganese(II) formate (Mn(HCO2)2), representing an ionic inorganic-organic hybrid within the MOF family, are monitored by interference microscopy. Within these profiles, a crystal section could be detected where over the total of its extension (≈2 μm x 50 μm x 30 μm) molecular uptake ideally followed the pattern of one-dimensional diffusion. Analysis of the evolution of intracrystalline concentration in this section directly yields the permeability of the crystal surface and the intracrystalline diffusivity as a function of the concentration of the total range of 0 ≤ θ ≤ 0.57 covered in the experiments. Within this range, the surface permeability is found to increase by 1 order of magnitude, while, within the limits of accuracy (±30%), the transport diffusivity remains constant, thus reflecting the properties of the lattice gas model.
ASJC Scopus Sachgebiete
- Chemische Verfahrenstechnik (insg.)
- Katalyse
- Chemie (insg.)
- Biochemie, Genetik und Molekularbiologie (insg.)
- Biochemie
- Chemische Verfahrenstechnik (insg.)
- Kolloid- und Oberflächenchemie
Zitieren
- Standard
- Harvard
- Apa
- Vancouver
- BibTex
- RIS
in: Journal of the American Chemical Society, Jahrgang 129, Nr. 25, 27.06.2007, S. 8041-8047.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Intracrystalline diffusivities and surface permeabilities deduced from transient concentration profiles
T2 - Methanol in MOF manganese formate
AU - Kortunov, Pavel V.
AU - Heinke, Lars
AU - Arnold, Mirko
AU - Nedellec, Yannic
AU - Jones, Deborah J.
AU - Caro, Jürgen
AU - Kärger, Jörg
PY - 2007/6/27
Y1 - 2007/6/27
N2 - The intracrystalline concentration profiles during molecular uptake of methanol by an initially empty, single crystal of microporous manganese(II) formate (Mn(HCO2)2), representing an ionic inorganic-organic hybrid within the MOF family, are monitored by interference microscopy. Within these profiles, a crystal section could be detected where over the total of its extension (≈2 μm x 50 μm x 30 μm) molecular uptake ideally followed the pattern of one-dimensional diffusion. Analysis of the evolution of intracrystalline concentration in this section directly yields the permeability of the crystal surface and the intracrystalline diffusivity as a function of the concentration of the total range of 0 ≤ θ ≤ 0.57 covered in the experiments. Within this range, the surface permeability is found to increase by 1 order of magnitude, while, within the limits of accuracy (±30%), the transport diffusivity remains constant, thus reflecting the properties of the lattice gas model.
AB - The intracrystalline concentration profiles during molecular uptake of methanol by an initially empty, single crystal of microporous manganese(II) formate (Mn(HCO2)2), representing an ionic inorganic-organic hybrid within the MOF family, are monitored by interference microscopy. Within these profiles, a crystal section could be detected where over the total of its extension (≈2 μm x 50 μm x 30 μm) molecular uptake ideally followed the pattern of one-dimensional diffusion. Analysis of the evolution of intracrystalline concentration in this section directly yields the permeability of the crystal surface and the intracrystalline diffusivity as a function of the concentration of the total range of 0 ≤ θ ≤ 0.57 covered in the experiments. Within this range, the surface permeability is found to increase by 1 order of magnitude, while, within the limits of accuracy (±30%), the transport diffusivity remains constant, thus reflecting the properties of the lattice gas model.
UR - http://www.scopus.com/inward/record.url?scp=34347246327&partnerID=8YFLogxK
U2 - 10.1021/ja071265h
DO - 10.1021/ja071265h
M3 - Article
AN - SCOPUS:34347246327
VL - 129
SP - 8041
EP - 8047
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
SN - 0002-7863
IS - 25
ER -