Low-temperature cvi modification of j-alumina membranes

Arian Nijmeijer; B.J. Bladergroen; H. Verweij

doi:10.1016/S1387-1811(98)00205-4

Low-temperature cvi modification of j-alumina membranes

Arian Nijmeijer, B.J. Bladergroen, H. Verweij

Inorganic Materials Science

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Abstract

Microporous silica membranes have been prepared by low-temperature chemical vapor infiltration (CVI) of supported mesoporous γ-alumina membranes. The best results were obtained with silicon tetra-acetate as precursor with H2:N2 membrane selectivities of >40 and a H2 permeance of 4×10−7 mol/m2 s Pa at 250°C. This permeance compares favorably with that of state-of-the-art microporous CVI silica membranes. Experiments with silane as precursor did, however, not lead to selectivity improvements of the starting membranes.

Original language	Undefined
Pages (from-to)	179-184
Number of pages	6
Journal	Microporous and mesoporous materials
Volume	25
Issue number	25
DOIs	https://doi.org/10.1016/S1387-1811(98)00205-4
Publication status	Published - 1998

Keywords

METIS-105401
IR-72307

Access to Document

10.1016/S1387-1811(98)00205-4

Cite this

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title = "Low-temperature cvi modification of j-alumina membranes",

abstract = "Microporous silica membranes have been prepared by low-temperature chemical vapor infiltration (CVI) of supported mesoporous γ-alumina membranes. The best results were obtained with silicon tetra-acetate as precursor with H2:N2 membrane selectivities of >40 and a H2 permeance of 4×10−7 mol/m2 s Pa at 250°C. This permeance compares favorably with that of state-of-the-art microporous CVI silica membranes. Experiments with silane as precursor did, however, not lead to selectivity improvements of the starting membranes.",

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T1 - Low-temperature cvi modification of j-alumina membranes

AU - Nijmeijer, Arian

AU - Bladergroen, B.J.

AU - Verweij, H.

PY - 1998

Y1 - 1998

N2 - Microporous silica membranes have been prepared by low-temperature chemical vapor infiltration (CVI) of supported mesoporous γ-alumina membranes. The best results were obtained with silicon tetra-acetate as precursor with H2:N2 membrane selectivities of >40 and a H2 permeance of 4×10−7 mol/m2 s Pa at 250°C. This permeance compares favorably with that of state-of-the-art microporous CVI silica membranes. Experiments with silane as precursor did, however, not lead to selectivity improvements of the starting membranes.

AB - Microporous silica membranes have been prepared by low-temperature chemical vapor infiltration (CVI) of supported mesoporous γ-alumina membranes. The best results were obtained with silicon tetra-acetate as precursor with H2:N2 membrane selectivities of >40 and a H2 permeance of 4×10−7 mol/m2 s Pa at 250°C. This permeance compares favorably with that of state-of-the-art microporous CVI silica membranes. Experiments with silane as precursor did, however, not lead to selectivity improvements of the starting membranes.

KW - METIS-105401

KW - IR-72307

U2 - 10.1016/S1387-1811(98)00205-4

DO - 10.1016/S1387-1811(98)00205-4

M3 - Article

SN - 1387-1811

VL - 25

SP - 179

EP - 184

JO - Microporous and mesoporous materials

JF - Microporous and mesoporous materials

IS - 25

ER -