dc.contributor.author | Rabbani, Mohammad Gulam | |
dc.contributor.author | Sekizkardes, Ali Kemal | |
dc.contributor.author | El-Kadri, Oussama | |
dc.contributor.author | Kaafarani, Bilal R. | |
dc.contributor.author | El-Kaderi, Hani M. | |
dc.date.accessioned | 2016-10-26T10:11:47Z | |
dc.date.available | 2016-10-26T10:11:47Z | |
dc.date.issued | 2012-11 | |
dc.identifier.citation | Rabbani, Mohammad Gulam, Ali Kemal Sekizkardes, Oussama El-Kadri, Bilal R. Kaafarani, and Hani M. El-Kaderi. "Pyrene-directed growth of nanoporous benzimidazole-linked nanofibers and their application to selective CO2 capture and separation." Journal of Materials Chemistry 22, no. 48 (2012): 25409 | en_US |
dc.identifier.uri | http://hdl.handle.net/11073/8585 | |
dc.description.abstract | A pyrene-based benzimidazole-linked polymer (BILP-10) has been synthesized by the co-condensation of 1,3,6,8-tetrakis(4-formylphenyl)pyrene and 1,2,4,5-benzenetetramine tetrahydrochloride in dimethylformamide. The use of pyrene as a molecular building unit leads to the formation of self-assembled nanofibers that have moderate surface area (SABET = 787 m2 g−1) and very high CO2/N2 (128) and CO2/CH4 (18) selectivities at 273 K. Furthermore, results from gas uptake measurements indicate that BILP-10 can store significant amounts of CO2 (4.0 mmol at 273 K/1.0 bar) and H2 (1.6 wt% at 77 K/1.0 bar) with respective isosteric heats of adsorption of 38.2 and 9.3 kJ mol−1 which exceed all of the previously reported values for BILPs and are among the highest values reported to date for unmodified porous organic polymers. Under high pressure settings, BILP-10 displays moderate uptakes of H2 (27.3 g L−1, 77 K/40 bar), CH4 (72 L L−1, 298 K/40 bar), and CO2 (13.3 mmol g−1, 298 K/40 bar). The unusually high CO2 and H2 binding affinities of BILP-10 are presumably facilitated by the amphoteric pore walls of the polymer that contain imidazole moieties and the predominant microporous nature. | en_US |
dc.language.iso | en_US | en_US |
dc.relation.ispartofseries | Journal of Materials Chemistry | en_US |
dc.relation.uri | https://dx.doi.org/10.1039/C2JM34922A | en_US |
dc.title | Pyrene-directed growth of nanoporous benzimidazole-linked nanofibers and their application to selective CO2 capture and separation | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.1039/C2JM34922A | |