dc.identifier.uri |
http://dx.doi.org/10.15488/17208 |
|
dc.identifier.uri |
https://www.repo.uni-hannover.de/handle/123456789/17336 |
|
dc.contributor.author |
Zhao, Zhijun
|
|
dc.contributor.author |
Ding, Li
|
|
dc.contributor.author |
Mundstock, Alexander
|
|
dc.contributor.author |
Stölting, Oliver
|
|
dc.contributor.author |
Polarz, Sebastian
|
|
dc.contributor.author |
Wang, Haihui
|
|
dc.contributor.author |
Feldhoff, Armin
|
|
dc.date.accessioned |
2024-04-25T07:28:48Z |
|
dc.date.available |
2024-04-25T07:28:48Z |
|
dc.date.issued |
2024 |
|
dc.identifier.citation |
Zhao, Z.; Ding, L.; Mundstock, A.; Stölting, O.; Polarz, S. et al.: Preparation of ZIF-62 polycrystalline and glass membranes for helium separation. In: Journal of Membrane Science 700 (2024), 122677. DOI: https://doi.org/10.1016/j.memsci.2024.122677 |
|
dc.description.abstract |
Defects among the grains of MOF polycrystalline membranes lead to non-selective gas transport, thereby reducing their selectivity in gas separation. In this work, ZIF-62 polycrystalline membranes with a well-intergrown structure were prepared on MXene-modified supports. Subsequent thermal treatment transformed the membranes into glass membranes, effectively eliminating non-selective defects at grain boundaries. Due to the incorporation of the MXene film and the vertical positioning of the support during the solvothermal process, only a minimal portion of the glass melt infiltrated into the porous support. Across the temperature range of 303 K–423 K and pressure range of 1 bar–3 bar, the ZIF-62 glass membranes showcased superior helium separation property and long-term chemical stability (resistant to CO2 and H2O). The helium permeance reached approximately 51 GPU, with selectivities against N2 and CH4 being 17.4 and 13.9, respectively, outperforming current MOF membranes. |
eng |
dc.language.iso |
eng |
|
dc.publisher |
New York, NY [u.a.] : Elsevier |
|
dc.relation.ispartofseries |
Journal of Membrane Science 700 (2024) |
|
dc.rights |
CC BY 4.0 Unported |
|
dc.rights.uri |
https://creativecommons.org/licenses/by/4.0 |
|
dc.subject |
Gas separation |
eng |
dc.subject |
Helium recovery |
eng |
dc.subject |
MOF glass |
eng |
dc.subject |
MXene |
eng |
dc.subject |
ZIF-62 membrane |
eng |
dc.subject.ddc |
570 | Biowissenschaften, Biologie
|
|
dc.title |
Preparation of ZIF-62 polycrystalline and glass membranes for helium separation |
eng |
dc.type |
Article |
|
dc.type |
Text |
|
dc.relation.essn |
0376-7388 |
|
dc.relation.issn |
0376-7388 |
|
dc.relation.doi |
https://doi.org/10.1016/j.memsci.2024.122677 |
|
dc.bibliographicCitation.volume |
700 |
|
dc.bibliographicCitation.firstPage |
122677 |
|
dc.description.version |
publishedVersion |
eng |
tib.accessRights |
frei zug�nglich |
|
dc.bibliographicCitation.articleNumber |
122677 |
|