DataVXACS Applied Materials & InterfacesPaper
journal article·2020-12-09

Metal–Organic Frameworks Corset with a Thermosetting Polymer for Improved Molecular-Sieving Property of Mixed-Matrix Membranes

Sheng Yang, Yuhan Wang, Peng Lu, Hua Jin, Fusheng Pan, Zixing Shi, Xue-song Jiang, Chen Chen, Zhongyi Jiang, Yanshuo Li

ACS Applied Materials & Interfaces· Volume 12· Issue 49
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Source abstract

Abstract

Metal–organic frameworks (MOFs) are promising materials for gas separation membranes. However, the framework flexibility affects their molecular-sieving properties. Herein, we restrict the flexibility of zeolitic imidazolate framework-7 (ZIF-7) by controlling its phase transition in mixed-matrix membranes (MMMs), relying on the so-called “space-confinement effect” of a novel thermosetting polymer, poly 2,2′-( p -oxydiphenyl)-5,5′-bibenzimidazole (OPBI) polymer. Compared with the pure OPBI membrane, the optimized membranes containing 30 wt % ZIF-7 with a narrow-pore (np) phase (ZIF-7-II) exhibited a significant improvement in H 2 /CO 2 separation, e.g., the H 2 /CO 2 ideal selectivity increased ∼2.8 times, surpassing the state-of-the-art upper bound of polymeric membranes and exhibited excellent stability at increased pressure and temperature (8 bar, 180 °C).
Source: openalex_inverted_index · Quality: baseline

Research context

Polymers

OpenAlex topics: Membrane Separation and Gas Transport · Metal-Organic Frameworks: Synthesis and Applications · Extraction and Separation Processes

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, P. R. China

State Key Laboratory Base of Novel Functional Materials and Preparation Science, School of Materials Science & Chemical Engineering, Ningbo University, Ningbo 315211, P. R. China

School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China

School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China

Funding

Natural Science Foundation of Ningbo · Ningbo University · National Natural Science Foundation of China · Natural Science Foundation of Zhejiang Province · S&T Innovation 2025 Major Special Programme

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