Enhanced hydrogen separation by vertically-aligned carbon nanotube membranes with zeolite imidazolate frameworks as a selective layer
Article
Article Title | Enhanced hydrogen separation by vertically-aligned carbon nanotube membranes with zeolite imidazolate frameworks as a selective layer |
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ERA Journal ID | 201472 |
Article Category | Article |
Authors | Ge, Lei (Author), Du, Aijun (Author), Hou, Meng (Author), Rudolph, Victor (Author) and Zhu, Zhonghua (Author) |
Journal Title | RSC Advances: an international journal to further the chemical sciences |
Journal Citation | 2 (31), pp. 11793-11800 |
Number of Pages | 8 |
Year | 2012 |
Publisher | The Royal Society of Chemistry |
Place of Publication | United Kingdom |
ISSN | 2046-2069 |
Digital Object Identifier (DOI) | https://doi.org/10.1039/c2ra21460a |
Web Address (URL) | http://pubs.rsc.org/en/Content/ArticleLanding/2012/RA/c2ra21460a#!divAbstract |
Abstract | Vertically-aligned carbon nanotube (VACNT) membranes show very high permeation fluxes due to the inherent smooth and frictionless nature of the interior of the nanotubes. However, the hydrogen selectivities are all in the Knudsen range and are quite low. In this study we grew molecular sieve zeolite imidazolate frameworks (ZIFs) via secondary seeded growth on the VACNT membranes as a gas selective layer. The ZIF layer has a thickness of 5–6 mm and shows good contact with the VACNT membrane surface. The VACNT supported ZIF membrane shows much higher H2 selectivity than Ar (7.0); O2 (13.6); N2 (15.1) and CH4 (9.8). We conclude that tailoring metal–organic frameworks on the membrane surface can be an effective route to improve the gas separation performance of the VACNT membrane. |
ANZSRC Field of Research 2020 | 400409. Separation technologies |
Public Notes | File reproduced in accordance with the copyright policy of the publisher/author. |
Byline Affiliations | University of Queensland |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q3z4z/enhanced-hydrogen-separation-by-vertically-aligned-carbon-nanotube-membranes-with-zeolite-imidazolate-frameworks-as-a-selective-layer
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