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The enhanced hydrogen separation performance of mixed matrix membranes by incorporation of two-dimensional ZIF-L into polyimide containing hydroxyl group

Title
The enhanced hydrogen separation performance of mixed matrix membranes by incorporation of two-dimensional ZIF-L into polyimide containing hydroxyl group
Author
김승주
Keywords
Gas separation; Polyimide; Metal organic framework; Zeolitic imidazolate framework; ZIF-L; Mixed matrix membranes; Hydrogen separation
Issue Date
2018-03
Publisher
ELSEVIER SCIENCE BV
Citation
JOURNAL OF MEMBRANE SCIENCE, v. 549, page. 260-266
Abstract
This paper reports the preparation of mixed matrix membranes (MMMs) by incorporating a two-dimensional zeolitic imidazolate framework-L (ZIF-L) into a highly gas permeable hydroxyl group-containing polyimide (PI) for hydrogen separation. ZIF-L has a leaf-shaped morphology with excellent CO2 adsorption properties due to strong interaction between ZIF-L and CO2 molecules. The dispersion of ZIF-L crystals in the polymer phase increased CO2 adsorption and restricted CO2 transport through MMMs, resulting in a significant increase of H-2 selectivity over CO2. The gas transport properties of MMMs with a ZIF-L loading up to 20 wt% were investigated, and the results showed such MMMs had a H-2 permeability of 260 Barrers and ideal H-2/CO2 selectivity of 13.4 at room temperature. The membranes presented here have the potential for large-scale fabrication for hydrogen separation applications.
URI
https://www.sciencedirect.com/science/article/pii/S0376738816322311?via%3Dihubhttps://repository.hanyang.ac.kr/handle/20.500.11754/118066
ISSN
0376-7388; 1873-3123
DOI
10.1016/j.memsci.2017.12.022
Appears in Collections:
CENTER FOR CREATIVE CONVERGENCE EDUCATION[S](창의융합교육원) > ETC
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