Journal
CURRENT OPINION IN CHEMICAL ENGINEERING
Volume 8, Issue -, Pages 15-20Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.coche.2015.01.004
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Funding
- U.S. National Science Foundation [CBET-1263860, CBET-0854203, CBET-1263107]
- Div Of Chem, Bioeng, Env, & Transp Sys
- Directorate For Engineering [1263860] Funding Source: National Science Foundation
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Zeolite membranes have been recently demonstrated as a new type of ion separator for brine desalination and proton conduction in redox flow batteries. Although it is still in early stage of research and development, experimental and theoretical works have shown that ion separation by zeolite membranes relies primarily on the size exclusion (steric) effect enabled by the zeolite's uniform subnanometer pore sizes. Research has also revealed that the zeolite surface properties, for example, hydrophilicity, framework charges, and extraframework charge compensators, and operating conditions, for example, temperature, pressure and solution concentration, could play significant roles in determining the ion separation efficiency.
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