TY - JOUR
T1 - Robust Ultramicroporous Metal–Organic Frameworks with Benchmark Affinity for Acetylene
AU - Peng, Yun Lei
AU - Pham, Tony
AU - Li, Pengfei
AU - Wang, Ting
AU - Chen, Yao
AU - Chen, Kai Jie
AU - Forrest, Katherine A.
AU - Space, Brian
AU - Cheng, Peng
AU - Zaworotko, Michael J.
AU - Zhang, Zhenjie
N1 - Publisher Copyright:
© 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
PY - 2018/8/20
Y1 - 2018/8/20
N2 - Highly selective separation and/or purification of acetylene from various gas mixtures is a relevant and difficult challenge that currently requires costly and energy-intensive chemisorption processes. Two ultramicroporous metal–organic framework physisorbents, NKMOF-1-M (M=Cu or Ni), offer high hydrolytic stability and benchmark selectivity towards acetylene versus several gases at ambient temperature. The performance of NKMOF-1-M is attributed to their exceptional acetylene binding affinity as revealed by modelling and several experimental studies: in situ single-crystal X-ray diffraction, FTIR, and gas mixture breakthrough tests. NKMOF-1-M exhibit better low-pressure uptake than existing physisorbents and possesses the highest selectivities yet reported for C2H2/CO2 and C2H2/CH4. The performance of NKMOF-1-M is not driven by the same mechanism as current benchmark physisorbents that rely on pore walls lined by inorganic anions.
AB - Highly selective separation and/or purification of acetylene from various gas mixtures is a relevant and difficult challenge that currently requires costly and energy-intensive chemisorption processes. Two ultramicroporous metal–organic framework physisorbents, NKMOF-1-M (M=Cu or Ni), offer high hydrolytic stability and benchmark selectivity towards acetylene versus several gases at ambient temperature. The performance of NKMOF-1-M is attributed to their exceptional acetylene binding affinity as revealed by modelling and several experimental studies: in situ single-crystal X-ray diffraction, FTIR, and gas mixture breakthrough tests. NKMOF-1-M exhibit better low-pressure uptake than existing physisorbents and possesses the highest selectivities yet reported for C2H2/CO2 and C2H2/CH4. The performance of NKMOF-1-M is not driven by the same mechanism as current benchmark physisorbents that rely on pore walls lined by inorganic anions.
KW - acetylene
KW - gas separation
KW - hydrolytic stability
KW - metal–organic frameworks
KW - ultramicroporous materials
UR - http://www.scopus.com/inward/record.url?scp=85050584466&partnerID=8YFLogxK
U2 - 10.1002/anie.201806732
DO - 10.1002/anie.201806732
M3 - Article
C2 - 29972279
AN - SCOPUS:85050584466
SN - 1433-7851
VL - 57
SP - 10971
EP - 10975
JO - Angewandte Chemie - International Edition
JF - Angewandte Chemie - International Edition
IS - 34
ER -