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http://dx.doi.org/10.9713/kcer.2019.57.1.65

Preparation of Heterogeneous Bipolar Membranes Using Poly (phenylene oxide, PPO) Polyelectrolyte and Their Water Splitting Properties  

Kim, In Sik (Department of Applied Chemical Engineering, Chungnam National University)
Hwang, Seong Yeon (Department of Applied Chemical Engineering, Chungnam National University)
Kang, Byung Gwan (Department of Applied Chemical Engineering, Chungnam National University)
Hwang, Taek Sung (Department of Applied Chemical Engineering, Chungnam National University)
Publication Information
Korean Chemical Engineering Research / v.57, no.1, 2019 , pp. 65-72 More about this Journal
Abstract
In this study, heterogeneous ion exchange membranes were prepared by casting method with various mixing ratios of PPO ion-selective solution and ion exchange resin. Then heterogeneous bipolar membranes were prepared by using this. The water content of heterogeneous cation and anion exchange membranes were 60~80% respectively, the ion exchange capacity was 2.81~3.26 meq/g, 2.31~2.74 meq/g and electrical resistances were $1.65{\sim}1.45{\Omega}{\cdot}cm^2$ and $1.55{\sim}1.05{\Omega}{\cdot}cm^2$. The tensile strength of heterogeneous bipolar membrane was lower than that of PPO resin before functionalization ($700Kg_f/cm^2$). The tensile strength of heterogeneous bipolar membrane with catalyst layer was lower than that of non-catalytic heterogeneous bipolar membrane. The water splitting voltage of the heterogeneous bipolar membrane with catalyst layer was low and stable at a minimum of 1.7~1.8 V, maximum 3.9~4.0 V, and the water splitting voltage of the non-catalytic heterogeneous bipolar membrane was constant at 3.8~4.0 V.
Keywords
Heterogeneous cation exchange membrane; Heterogeneous anion exchange membrane; Heterogeneous bipolar membrane; PPO; Ion exchanger resin;
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Times Cited By KSCI : 1  (Citation Analysis)
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