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Evaluation of instability criterion for bidisperse sedimentation
The instability criterion for bidisperse sedimentation derived by Batchelor and Janse van Rensburg was combined with two empirical models for the particle velocities that are consistent withExpand
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Oxidative coupling of methane in a mixed-conducting perovskite membrane reactor
Ionic-electronic mixed-conducting perovskite-type oxide La0.6Sr0.4Co0.8Fe0.2O3 was applied as a dense membrane for oxygen supply in a reactor for methane coupling. The oxygen permeation propertiesExpand
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High-temperature coulometric titration of La1-xSrxCoO3-δ : Evidence for the effect of electronic band structure on nonstoichiometry behavior
The equilibrium oxygen chemical potential and the partial energy and entropy of O2in perovskites La1−xSrxCoO3−δwere measured as a function ofδandxby high-temperature oxygen coulometric titration. AnExpand
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Permeation of single gases in thin zeolite MFI membranes
The permeation of a series of gases with widely different Lennard-Jones kinetic diameters and sorption properties is investigated as a function of feed pressure (up to 100 kPa) and temperatureExpand
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Response of the osmotic tensiometer to varying temperatures : modeling and experimental validation
In an osmotic tensiometer, the hydrostatic pressure of a confined polymer solution is measured to infer the soil water potential. Essential in the operation is the osmotic potential of the polymerExpand
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Fast mass transport through carbon nanotube membranes.
The May 19, 2006 issue of Science included a paper by Holt et al. on "Fast Mass Transport Through Sub-2-Nanometer Carbon Nanotubes". The paper was also featured on the cover, showing methaneExpand
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theory of cast formation in electrophoretic deposition
The rate of cast formation in electrophoretic deposition is described by a combination of the equation of continuity for the suspension phase with expressions for the particle velocity and theExpand
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Synthesis of ultrathin zeolite Y membranes and their application for separation of carbon dioxide and nitrogen gases.
Synthesis of zeolite Y membranes from submicrometer (>100 nm) and nano seed (<100 nm) crystals on alumina supports was examined and the separation characteristics of these membranes for CO(2) andExpand
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The structure of lithium, sodium and potassium germanate glasses, studied by Raman scattering
Polarized and depolarized Raman spectra of alkali germanate glasses are given, together with Raman powder spectra of the crystalline compounds Li2O · 2 GeO2; 3 Li2O · 8 GeO2; 2 Li2O· 9 GeO2; Li2O · 7Expand
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Transport properties of alkanes through ceramic thin zeolite MFI membranes
Polycrystalline randomly oriented defect free zeolite layers on porous -Al2O3 supports are prepared with a thickness of less than 5 μm by in situ crystallisation of silicalite-1. The flux of alkanesExpand
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