Aqueously Cathodic Deposition of ZIF-8 Membranes for Superior Propylene/Propane Separation
Type
ArticleKAUST Department
Advanced Membranes and Porous Materials Research CenterChemical Engineering Program
Material Science and Engineering Program
Physical Science and Engineering (PSE) Division
KAUST Grant Number
URF/1/3435Date
2019-11-06Online Publication Date
2019-11-06Print Publication Date
2020-02Permanent link to this record
http://hdl.handle.net/10754/659979
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Show full item recordAbstract
Electrochemical deposition has emerged as a novel approach to fabricate metal–organic framework (MOF) films. Here, for the first time, an aqueously cathodic deposition (ACD) approach is developed to fabricate ZIF-8 type of MOF membranes without addition of any supporting electrolyte or modulator. The fabrication process uses 100% water as the sole solvent and a low-defect density membrane is obtained in only 60 min under room temperature without any pre-synthesis treatment. The membrane exhibits superior performance in C3H6/C3H8 separation with 182 GPU C3H6 permeance and 142 selectivity, making it sit at the upper bound of permeance versus selectivity graph, outperforming majority of the published data up to 2019. Notably, this approach uses an extremely low current density (0.13 mA cm−2) operated under an ultrafacile apparatus set-up, enabling an attractive way for environmentally friendly, energy efficient, and easily scalable MOF membrane fabrications. This work demonstrates a great potential of aqueously electrochemical deposition of MOF membrane in the future research.Citation
Wei, R., Chi, H.-Y., Li, X., Lu, D., Wan, Y., Yang, C.-W., & Lai, Z. (2019). Aqueously Cathodic Deposition of ZIF-8 Membranes for Superior Propylene/Propane Separation. Advanced Functional Materials, 1907089. doi:10.1002/adfm.201907089Sponsors
R.W and H.-Y.C. contributed equally to this work. This work was supported by KAUST CRG Grant URF/1/3435.Publisher
WileyJournal
Advanced Functional MaterialsAdditional Links
https://onlinelibrary.wiley.com/doi/abs/10.1002/adfm.201907089Relations
Is Supplemented By:- [Video]
Separating gases with a porous membrane. Youtube. URL: https://www.youtube.com/watch?v=bLjFhS1G3nM
ae974a485f413a2113503eed53cd6c53
10.1002/adfm.201907089