Optimizing supramolecular interactions in metal-organic frameworks for C-2 separation

C-2 separation is of great importance in the petrochemical industry. Traditionally, it is performed by distillation at cryogenic temperatures, which necessitates the consumption of a huge amount of energy to operate the refrigeration system in the production process. In this regard, it is imperative...

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Veröffentlicht in:Dalton transactions : an international journal of inorganic chemistry 2020-11, Vol.49 (44), p.15548-15559
Hauptverfasser: Hua, Gui-Fang, Xie, Xiao-Jing, Lu, Weigang, Li, Dan
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creator Hua, Gui-Fang
Xie, Xiao-Jing
Lu, Weigang
Li, Dan
description C-2 separation is of great importance in the petrochemical industry. Traditionally, it is performed by distillation at cryogenic temperatures, which necessitates the consumption of a huge amount of energy to operate the refrigeration system in the production process. In this regard, it is imperative to seek alternative separation methods with high efficiency and low energy cost. Although of recent origin, metal-organic frameworks (MOFs) have already been extensively studied as advanced adsorbents in many applications, and significant progress has been made particularly in gas separation owing to their unprecedented porosity and tunable structures. In this review, we extrapolated three most frequently invoked design strategies for efficient C-2 separation hinged upon supramolecular interactions, including molecular sieving, gate opening, and surface engineering. Recent progress of MOF materials in C-2 separation was highlighted within each of these strategies, and their advantages and limitations are compared and discussed. Accordingly, we provide perspectives on current challenges and future emphases in designing MOF materials for hydrocarbon separation. With our continued efforts in this area, we expect that integrating supramolecular interactions in a single MOF system is a viable approach to achieve a balance between adsorption capacity and selectivity for different hydrocarbon separation scenarios.
doi_str_mv 10.1039/d0dt03013a
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subjects Chemistry
Chemistry, Inorganic & Nuclear
Physical Sciences
Science & Technology
title Optimizing supramolecular interactions in metal-organic frameworks for C-2 separation
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