Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4767095 | Electrochimica Acta | 2017 | 30 Pages |
Abstract
The ion exchange membrane (IEM) is a primary component in the reverse electrodialysis (RED) system for salinity gradient power generation. A great challenge exists in the selection of appropriate membrane materials and the design of proper RED membranes to optimize such an energy-producing process. This work presents a novel and cost-effective method for preparing hybrid cation exchange membranes by incorporating two organic polymers with fine film-forming ability. The functionalized poly (2,6-dimethyl-1,4-phenylene oxide) (sPPO) polymer with sulfated polyvinyl alcohol (sPVA) is proved to have great potential as a candidate for applications in RED. The prepared membranes showed that an optimal range of sPVA (2-10 wt%) improved the permselectivity (up to 87%) and an area resistance (down to 1.31 Ω cm2), which is comparable to those obtained with commercially available FKS (Fumasep®, Germany) membranes. The hybrid membrane containing 5 wt% of sPVA achieved the highest gross power density at 0.46 W/m2. This study shows the potential of using organic-organic hybrid membranes for the RED power generation system.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Hongguo Zhang, Di Jiang, Bopeng Zhang, Jin Gi Hong, Yongsheng Chen,