Synthesis and characterization of sodalite–polyimide nanocomposite membranes
Li, Dan, Zhu, Huai Yong, Ratinac, Kyle R., Ringer, Simon P., & Wang, Huanting (2009) Synthesis and characterization of sodalite–polyimide nanocomposite membranes. Microporous and Mesoporous Materials, 126(1-2), pp. 14-19.
DOI: 10.1016/j.micromeso.2009.05.014
Official URL: http://www.sciencedirect.com/science?_ob=Publicati...
Abstract
Nanocomposite membranes are fabricated from sodalite nanocrystals (Sod-N) dispersed in BTDA-MDA polyimide matrices and then characterized structurally and for gas separation. No voids are found upon investigation of the interfacial contact between the inorganic and organic phases, even at a Sod-N loading of up to 35 wt.%. This is due to the functionalization of the zeolite nanocrystals with amino groups (==Si_(CH3)(CH2)3NH2), which covalently link the particles to the polyimide chains in the matrices. The addition of Sod-N increases the hydrogen-gas permeability of the membranes, while nitrogen permeability decreases. Overall, these nanocomposite membranes display substantial selectivity improvements. The sodalite–polyimide membrane containing 35 wt.% Sod-N has a hydrogen permeability of 8.0 Barrers and a H2/N2 ideal selectivity of 281 at 25 C whereas the plain polyimide membrane exhibits a hydrogen permeability of 7.0 Barrers and a H2/N2 ideal selectivity of 198 at the same testing temperature.
Citations:
Citation counts are sourced monthly from Scopus and Web of Science citation databases.
These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science generally from 1980 onwards.
Citations counts from the Google Scholar™ indexing service can be viewed at the linked Google Scholar™ search.
| ID Code: | 29641 |
|---|---|
| Item Type: | Journal Article |
| Additional URLs: | |
| Keywords: | Sodalite, Polyimide, Nanocomposite membrane, Hydrogen separation |
| ISSN: | 1387-1811 |
| Divisions: | Past > QUT Faculties & Divisions > Faculty of Science and Technology |
| Deposited On: | 14 Jan 2010 07:58 |
| Last Modified: | 02 Feb 2012 21:00 |
Export: EndNote | Dublin Core | BibTeX
Staff only: HERDC collection form
Repository Staff Only: item control page