Efficient Splitting of Trans-/Cis-Olefins Using an Anion-Pillared Ultramicroporous Metal–Organic Framework with Guest-Adaptive Pore Channels
Type
ArticleAuthors
Zhang, ZhaoqiangCui, Xili
Jiang, Xiaoming
Ding, Qi
Cui, Jiyu
Zhang, Yuanbin
Belmabkhout, Youssef

Adil, Karim

Eddaoudi, Mohamed

Xing, Huabin
KAUST Department
Advanced Membranes & Porous Materials Center, King Abdullah University of Science and Technology, Thuwal 23955, Saudi ArabiaFunctional Materials Design, Discovery and Development (FMD3)
Advanced Membranes and Porous Materials Research Center
Physical Science and Engineering (PSE) Division
Chemical Science Program
Date
2021-12-08Permanent link to this record
http://hdl.handle.net/10754/676345
Metadata
Show full item recordAbstract
Trans-/cis-olefin isomers play a vital role in the petrochemical industry. The paucity of energy-efficient technologies for their splitting is mainly due to the similarities of their physicochemical properties. Herein, two new tailor-made anion-pillared ultramicroporous metal–organic frameworks (MOFs), ZU-36-Ni and ZU-36-Fe (GeFSIX-3-Ni and GeFSIX-3-Fe) are reported for the first time for the efficient trans-/cis-2-butene (trans-/cis-C4H8) mixture splitting by enhanced molecular exclusion. Notably, ZU-36-Ni unexpectedly exhibited smart guest-adaptive pore channels for trapping trans-C4H8 with a remarkable adsorption capacity (2.45 mmol∙g−1) while effectively rejecting cis-C4H8 with a high purity of 99.99%. The dispersion-corrected density functional theory (DFT-D) calculation suggested that the guest-adaptive behavior of ZU-36-Ni in response to trans-C4H8 is derived from the organic linker rotation and the optimal pore dimensions, which not only improve the favorable adsorption/diffusion of trans-C4H8 with optimal host–guest interactions, but also enhance the size-exclusion of cis-C4H8. This work opens a new avenue for pore engineering in advanced smart or adaptive porous materials for specific applications involving guest molecular recognition.Citation
Zhang, Z., Cui, X., Jiang, X., Ding, Q., Cui, J., Zhang, Y., Belmabkhout, Y., Adil, K., Eddaoudi, M., & Xing, H. (2021). Efficient Splitting of Trans-/Cis-Olefins Using an Anion-Pillared Ultramicroporous Metal–Organic Framework with Guest-Adaptive Pore Channels. Engineering. https://doi.org/10.1016/j.eng.2021.10.013Sponsors
Supported by the Zhejiang Provincial Natural Science Foundation of China (LZ18B060001), and the National Natural Science Foundation of China (21725603, 21476192, and U1862110)Publisher
Elsevier BVJournal
EngineeringAdditional Links
https://linkinghub.elsevier.com/retrieve/pii/S209580992100518Xae974a485f413a2113503eed53cd6c53
10.1016/j.eng.2021.10.013
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