Comparison of pure and mixed gas permeation of the highly fluorinated polymer of intrinsic microporosity PIM-2 under dry and humid conditions: Experiment and modelling
Yazarlar (14)
Alessio Fuoco
Cnr- Istituto Per La Tecnologia Delle Membrane, İtalya
Doç. Dr. Bekir SAYGINER
Kırşehir Ahi Evran Üniversitesi, Türkiye
Tamer Uyar
College Of Human Ecology, Amerika Birleşik Devletleri
Marcello Monteleone
Cnr- Istituto Per La Tecnologia Delle Membrane, İtalya
Elisa Esposito
Cnr- Istituto Per La Tecnologia Delle Membrane, İtalya
Chiara Muzzi
Cnr- Istituto Per La Tecnologia Delle Membrane, İtalya
Elena Tocci
Cnr- Istituto Per La Tecnologia Delle Membrane, İtalya
Mariagiulia Longo
Cnr- Istituto Per La Tecnologia Delle Membrane, İtalya
Maria Penelope De Santo
Università Della Calabria, İtalya
Marek Lanč
University Of Chemistry And Technology, Prague, Çek Cumhuriyeti
Karel Friess
University Of Chemistry And Technology, Prague, Çek Cumhuriyeti
Ondřej Vopička
University Of Chemistry And Technology, Prague, Çek Cumhuriyeti
Pavel Izák
University Of Chemistry And Technology, Prague, Çek Cumhuriyeti
Johannes C. Jansen
Cnr- Istituto Per La Tecnologia Delle Membrane, İtalya
| Makale Türü |
Özgün Makale
(SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
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| Dergi Adı | Journal of Membrane Science (Q1) | ||
| Dergi ISSN | 0376-7388 Wos Dergi Scopus Dergi | ||
| Dergi Tarandığı Indeksler | SCI-Expanded | ||
| Makale Dili | İngilizce | Basım Tarihi | 01-2020 |
| Cilt / Sayı / Sayfa | 594 / 1 / 117460–0 | DOI | 10.1016/j.memsci.2019.117460 |
| Makale Linki | https://ars.els-cdn.com/content/image/1-s2.0-S0376738819323956-fx1_lrg.jpg | ||
| Özet |
| This manuscript describes the gas separation performance of PIM-2, a partially fluorinated linear copolymer synthesized from 5,5',6,6'-tetrahydroxy-3,3,3',3'-tetramethylspirobisindane (TTSBI) and decafluorobiphenyl (DFBP). As one of the early members of the family of polymers of intrinsic microporosity, it had never been tested as a gas separation membrane because of insufficient mechanical resistance. This has been solved only recently, allowing the preparation of robust self-standing films. Molecular modelling studies demonstrated a high fractional free volume (34%) and an elevated surface area (642 m(2) g(-1)), and the latter is in good agreement with experimental BET results. Pure gas permeabilities measured on a fixed-volume time-lag instrument at 1 bar compare well with the results of mixed separation tests on a variable volume setup from 1-6 bar(a). Molecular modelling and independent sorption measurements on a gravimetric sorption balance both show strong dual-mode sorption behaviour, especially for CO2 and to a lesser extent for CH4. Temperature-dependent pure gas permeation measurements show typical Arrhenius behaviour, with a clear increase in the activation energy for diffusion with the increasing molecular size of the gas, indicating high size-selectivity. This is in agreement with the highly rigid PIM structure, determined by AFM force spectroscopy measurements. The dual-mode behaviour results in a moderate pressure dependence of the CO2 permeability and the CO2/N-2 and CO2/CH4 selectivity, all slightly decreasing with increasing pressure. The presence of humidity in the gas stream has a remarkable small effect on the membrane performance, which is probably due to the high fluorine content and the consequently low water vapour solubility in the polymer, as confirmed by gravimetric sorption measurements. The manuscript describes an extensive study on the structure-property relationships in PIM-2. |
| Anahtar Kelimeler |
| Carbon capture | Gas separation membrane | Humid gas permeation | Molecular modelling | Polymer of intrinsic microporosity |
Science Direct
Comparison of pure and mixed gas permeation of the highly fluorinated polymer of intrinsic microporosity PIM-2 under dry and humid conditions: Experiment and modelling
BM Sürdürülebilir Kalkınma Amaçları
| Atıf Sayıları | |
| WoS | 52 |
| SCOPUS | 54 |
| Google Scholar | 72 |