Composite phenolic resin-based carbon molecular sieve membranes for gas separation
Composite carbon molecular sieve membranes (c-CMSM) were prepared from phenolic resin loaded with boehmite by a single dipping–drying–pyrolysis step. The composite membrane was analyzed by scanning electron microscopy, high resolution transmission electron microscopy, X-ray diffraction, thermogravim...
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Published in | Carbon (New York) Vol. 49; no. 13; pp. 4348 - 4358 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
Kidlington
Elsevier Ltd
01.11.2011
Elsevier |
Subjects | |
Online Access | Get full text |
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Summary: | Composite carbon molecular sieve membranes (c-CMSM) were prepared from phenolic resin loaded with boehmite by a single dipping–drying–pyrolysis step. The composite membrane was analyzed by scanning electron microscopy, high resolution transmission electron microscopy, X-ray diffraction, thermogravimetric analysis, mercury porosimetry, CO
2 adsorption and permeation experiments. It was produced a 2
μm thick composite uniform layer on top of a α-Al
2O
3 support. The composite top layer exhibited nanowires of Al
2O
3 1–2
nm thick and 10–30
nm long well dispersed in a microporous carbon matrix. The micropores network accounted for 63% of the total pore volume (DR isotherm). The c-CMSM exhibited ideal O
2/N
2 and C
3H
6/C
3H
8 permselectivities of 5 and 15, respectively. The performance of the c-CMSM for pair C
3H
6/C
3H
8 was above the upper bound curve for polymeric membranes, making it a promising vehicle for olefin purification. |
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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 0008-6223 1873-3891 |
DOI: | 10.1016/j.carbon.2011.06.012 |