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Robust ultramicroporous metal-organic frameworks with benchmark affinity for acetylene

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posted on 2018-08-21, 10:41 authored by Yun-Lei Peng, Tony Pham, Pengfei Li, Ting Wang, Yao Chen, Kai-Jie Chen, Katherine A. Forrest, Brian Space, Peng Cheng, Michael J. Zaworotko, Zhenjie Zhang
Highly selective separation and/or purification of acetylene from various gas mixtures is a relevant and difficult challenge which currently requires costly and energy intensive chemisorption processes. Herein, we demonstrate that two ultramicroporous metalorganic framework physisorbents, NKMOF-1-M (M = Cu or Ni), offer high hydrolytic stability and benchmark selectivity towards acetylene vs. several gases at ambient temperature. We attribute the performance of NKMOF-1-M to their exceptional acetylene binding affinity as revealed by modeling and several experimental studies: in situ single crystal X-ray diffraction and FT-IR; 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. This study introduces a new strategy for the design of porous materials for acetylene separation since 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.

Funding

Investigation of the triple mutual system Li, Ba // BO2, F and the growth of bulk crystals of b-BaB2O4

Russian Foundation for Basic Research

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Prostate specific antigen (PSA) in benign prostate hyperplasia (BPH) and prostate cancer

National Research Foundation

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History

Publication

Angewandte Chemie International Edition;57 (34), pp. 10971-10975

Publisher

Wiley and Sons Ltd

Note

peer-reviewed

Other Funding information

SFI, National Natural Science Foundation of China, National Science Foundation

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This is the peer reviewed accepted version of the following article: Robust Ultramicroporous Metal-Organic Frameworks with Benchmark Affinity for Acetylene Yun-Lei Peng Tony Pham, Pengfei Li, Ting Wang, Yao Chen, Kai-Jie Chen, Katherine A. Forrest, Brian Space, Peng Cheng, Michael J. Zaworotko, Zhenjie Zhang Angewandte Chemie International Edition 2018 57 (34), pp. 10971-10975 which has been published in final form at https://doi.org/10.1002/anie.201806732 This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. http://olabout.wiley.com/WileyCDA/Section/id-828039.html#terms

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English

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