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Improvement in the Power Output of a Reverse Electrodialysis System by the Addition of Poly(sodium 4-styrenesulfonate)

Authors :
Yusuke YAMADA
Keisei SOWA
Yuki KITAZUMI
Osamu SHIRAI
Source :
Electrochemistry, Vol 89, Iss 5, Pp 467-471 (2021)
Publication Year :
2021
Publisher :
The Electrochemical Society of Japan, 2021.

Abstract

Salinity gradient energy generated by the contact between seawater and river water is one of the promising renewable energies. In the reverse electrodialysis (RED), salinity gradient energy is directly translated into the electricity. The representative problem is a large electrical resistance of river water or dilute solutions. The dilute solutions are poor electrically conductive. This results in a huge energy loss when an electrical current passes through it.In this study, sodium chloride (NaCl) or poly(sodium 4-styrenesulfonate) (NaPSS) was added to the dilute solutions to increase the conductivities and enhance the power outputs of the RED cells. When NaCl was added, the power output reached 11.4 ± 0.6 µW. On the other hand, when NaPSS was added, the power output increased up to 19.6 ± 0.6 µW.

Details

Language :
English
ISSN :
21862451
Volume :
89
Issue :
5
Database :
Directory of Open Access Journals
Journal :
Electrochemistry
Publication Type :
Academic Journal
Accession number :
edsdoj.01bc9b99ff244a249002a0b41a2c823f
Document Type :
article
Full Text :
https://doi.org/10.5796/electrochemistry.21-00073