Aqueous Cathodic Deposition: Aqueously Cathodic Deposition of ZIF-8 Membranes for Superior Propylene/Propane Separation (Adv. Funct. Mater. 7/2020)
KAUST DepartmentAdvanced Membranes and Porous Materials Research Center
Chemical Engineering Program
Material Science and Engineering
Material Science and Engineering Program
Physical Science and Engineering (PSE) Division
KAUST Grant NumberURF/1/3435
Online Publication Date2020-02-12
Print Publication Date2020-02
Embargo End Date2021-02-12
Permanent link to this recordhttp://hdl.handle.net/10754/661580
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AbstractElectrochemical 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 modu-lator. The fabrication process uses 100% water as the sole solvent and a low-defect density membrane is obtained in only 60 min under room tem-perature without any pre-synthesis treatment. The membrane exhibits supe-rior 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 electro-chemical deposition of MOF membrane in the future research.
CitationWei, R., Chi, H., Li, X., Lu, D., Wan, Y., Yang, C., & Lai, Z. (2020). Aqueous Cathodic Deposition: Aqueously Cathodic Deposition of ZIF-8 Membranes for Superior Propylene/Propane Separation (Adv. Funct. Mater. 7/2020). Advanced Functional Materials, 30(7), 2070042. doi:10.1002/adfm.202070042
SponsorsR.W and H.-Y.C. contributed equally to this work. This work was supported by KAUST CRG Grant URF/1/3435.
JournalAdvanced Functional Materials