An electrochemical system for salinity gradient energy harvesting. (1st March 2022)

• Record Type: Journal Article
• Authors: Zhou, Xia; Zhang, Wei-Bin; Li, Jia-Jun; Bao, Xu; Han, Xiong-Wei; Myintzu Theint, Myat; Ma, Xue-Jing
• Is Part Of: Energy conversion and management. Volume 255(2022)
• Publication Date: 2022-03-01
• Subjects: Salinity gradient -- Marine energy -- Manganese phosphate -- Electrochemical capacitance; Direct energy conversion -- Periodicals; Energy storage -- Periodicals; Energy transfer -- Periodicals; Énergie -- Conversion directe -- Périodiques; Direct energy conversion; Periodicals; 621.3105
• DOI: 10.1016/j.enconman.2022.115315
• Languages: English
• ISSNs: 0196-8904

Abstract

Graphic abstract: Highlights: An electrochemical system for salinity gradient energy harvesting is designed. The system uses pseudocapacitive Mn3 (PO4 )2 for efficiency energy harvesting. The energy density produced of the device is about 5.31 J g −1 or 42.48 mJ cm −2 . Abstract: Salinity gradient energy, which is abundant along the coastline in ocean, is a kind of chemical energy existing the solutions of different concentrations mixing. The pressure retarded osmosis, reverse electrodialysis and accumulator mixing technology are currently the most common approaches to harvest salinity gradient energy. Here we report an electrochemical device using active carbon as anode and manganese phosphate as cathode for salinity gradient energy harvesting, which shows an energy density of 5.31 J g −1, indicating a potential application in the field of ocean energy utilization.