Please use this identifier to cite or link to this item:
https://doi.org/10.1039/c3ta10928c
DC Field | Value | |
---|---|---|
dc.title | Room-temperature synthesis of ZIF-90 nanocrystals and the derived nano-composite membranes for hydrogen separation | |
dc.contributor.author | Yang, T. | |
dc.contributor.author | Chung, T.-S. | |
dc.date.accessioned | 2014-10-09T07:00:57Z | |
dc.date.available | 2014-10-09T07:00:57Z | |
dc.date.issued | 2013 | |
dc.identifier.citation | Yang, T., Chung, T.-S. (2013). Room-temperature synthesis of ZIF-90 nanocrystals and the derived nano-composite membranes for hydrogen separation. Journal of Materials Chemistry A 1 (19) : 6081-6090. ScholarBank@NUS Repository. https://doi.org/10.1039/c3ta10928c | |
dc.identifier.issn | 20507488 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/90064 | |
dc.description.abstract | Nanocrystals of ZIF-90 have been synthesized at room temperature through a novel procedure and incorporated into PBI-based nano-composite membranes for hydrogen purification. The physical and chemical structures of the ZIF-90 nanoparticles have been examined via multiple advanced instrumental analyses including DLS, XRD, FESEM, NMR and FTIR. The nanocrystals show identical morphology, crystallinity and chemical structure but a significantly reduced particle size (around 100 nm) when compared with the ZIF-90 particles in previous studies. The derived ZIF-90-PBI nano-composite membranes exhibit homogeneous particle dispersion and fine particle-polymer adhesion, as well as excellent hydrogen purification performance at various testing conditions. The 45/55 (w/w) ZIF-90-PBI membrane with the highest ZIF-90 volume loading of up to 50.9 vol% possesses the best ideal H2-CO2 separation performance with a moderate H2 permeability of 24.5 Barrer and a high H2-CO2 selectivity of 25.0 in pure gas permeation tests at 35 °C. The membrane also shows promoted gas separation performance during mixed gas tests at 180 °C with an H2 permeability of 226.9 Barrer and an H2-CO2 separation factor of 13.3 that surpasses the latest Robeson upper bound for H2-CO2 separation. This work not only expands the field of nano-composite membrane fabrication, but also provides prospects for interdisciplinary research combining nano-science and chemical engineering for clean energy development. © The Royal Society of Chemistry 2013. | |
dc.description.uri | http://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1039/c3ta10928c | |
dc.source | Scopus | |
dc.type | Article | |
dc.contributor.department | CHEMICAL & BIOMOLECULAR ENGINEERING | |
dc.description.doi | 10.1039/c3ta10928c | |
dc.description.sourcetitle | Journal of Materials Chemistry A | |
dc.description.volume | 1 | |
dc.description.issue | 19 | |
dc.description.page | 6081-6090 | |
dc.identifier.isiut | 000317936000037 | |
Appears in Collections: | Staff Publications |
Show simple item record
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.