TY - JOUR
T1 - Selective Hydrogen Isotope Separation via Breathing Transition in MIL-53(Al)
AU - Kim, Jin Yeong
AU - Zhang, Linda
AU - Balderas-Xicohténcatl, Rafael
AU - Park, Jaewoo
AU - Hirscher, Michael
AU - Moon, Hoi Ri
AU - Oh, Hyunchul
N1 - Funding Information:
This research was supported by the National R&D Program (NRF-2016-M1A7A1A02005285) and the Basic Science Research Program (NRF-2016R1C1B1007364, NRF-2016R1A5A1009405 and NRF-2017R1A2B4008757) through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and Future Planning. J.Y.K. acknowledges the Global PhD Fellowship (NRF-2014H1A2A1020670).
Funding Information:
This research was supported by the National R&D Program (NRF-2016-M1A7A1A02005285) and the Basic Science Research Program (NRF-2016R1C1B1007364, NRF-2016R1A5A1009405and NRF-2017R1A2B4008757) through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and Future Planning.
Publisher Copyright:
© 2017 American Chemical Society.
PY - 2017/12/13
Y1 - 2017/12/13
N2 - Breathing of MIL-53(Al), a flexible metal-organic framework (MOF), leads to dynamic changes as narrow pore (np) transitions to large pore (lp). During the flexible and reversible transition, the pore apertures are continuously adjusted, thus providing the tremendous opportunity to separate mixtures of similar-sized and similar-shaped molecules that require precise pore tuning. Herein, for the first time, we report a strategy for effectively separating hydrogen isotopes through the dynamic pore change during the breathing of MIL-53(Al), a representative of flexible MOFs. The experiment shows that the selectivity for D2 over H2 is strongly related to the state of the pore structure of MIL-53(Al). The highest selectivity (SD2/H2 = 13.6 at 40 K) was obtained by optimizing the exposure temperature, pressure, and time to systematically tune the pore state of MIL-53(Al).
AB - Breathing of MIL-53(Al), a flexible metal-organic framework (MOF), leads to dynamic changes as narrow pore (np) transitions to large pore (lp). During the flexible and reversible transition, the pore apertures are continuously adjusted, thus providing the tremendous opportunity to separate mixtures of similar-sized and similar-shaped molecules that require precise pore tuning. Herein, for the first time, we report a strategy for effectively separating hydrogen isotopes through the dynamic pore change during the breathing of MIL-53(Al), a representative of flexible MOFs. The experiment shows that the selectivity for D2 over H2 is strongly related to the state of the pore structure of MIL-53(Al). The highest selectivity (SD2/H2 = 13.6 at 40 K) was obtained by optimizing the exposure temperature, pressure, and time to systematically tune the pore state of MIL-53(Al).
UR - http://www.scopus.com/inward/record.url?scp=85037568341&partnerID=8YFLogxK
U2 - 10.1021/jacs.7b10323
DO - 10.1021/jacs.7b10323
M3 - Article
C2 - 29179549
AN - SCOPUS:85037568341
SN - 0002-7863
VL - 139
SP - 17743
EP - 17746
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
IS - 49
ER -