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Updated: Jan 21, 2026

Ion-Exchange Membranes for the Fabrication of Reverse Electrodialysis Device
Published on: July 20, 2021
The reverse electrodialysis driven electrochemical process assisted by anodic photocatalysis for hydrogen peroxide
Peng Xu1, Hao Xu1, Dayang Zheng1
1Key Laboratory for Green & Advanced Civil Engineering Materials and Application Technology of Hunan Province, College of Civil Engineering, Hunan University, Changsha, 410082, China.
Abstract:
A novel system combined with photocatalytic fuel cell and electrochemical system assisted by reverse electrodialysis (PREC) is proposed for H2O2 production and electricity generation. Results demonstrated the H2O2 concentration increased gradually with time and reached around 940 mg/L at 24 h. The optimum air flow rate was 15 L/min. The current efficiency was 31.3%. The maximum short-circuit current density, maximum open-circuit voltage and maximum power density were 0.95 mA/cm2, 1.52 V and 68 W/m2. The salinity-driven potential, created with the five pairs of the HC and LC cells in the PREC, was calculated to be 0.72 V. Additionally, the energy efficiency (ηE) was 40.5%. The integrated system is confirmed to be serviced as an efficient technology for H2O2 electro-genneration and salinity-gradient energy utilization simultaneously.
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