XUDong-chuan,LIChao-lin,WANGWen-hui.Synthesis of Na3Fe2(PO4)3 and the Enhanced Desalinization Performance of Na3Fe2(PO4)3 by PEDOT Coating[J].China Water & Wastewater,2022,38(17):7-14.
Synthesis of Na3Fe2(PO4)3 and the Enhanced Desalinization Performance of Na3Fe2(PO4)3 by PEDOT Coating
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第38卷
Number:
第17期
Page:
7-14
Column:
Date of publication:
2022-09-01
- Abstract:
- Seawater desalination battery has been regarded as a promising technology for next generation seawater desalination due to its environmental friendliness, energy saving and mild operating conditions. However, its development is greatly limited by the viable Na-storage electrode materials with appropriate operating voltage windows, high desalination capacity and excellent cycle stability. Herein, the Na3Fe2(PO4)3 (NFP) with different morphologies was prepared via solid state reaction with controlled calcination temperature, and PEDOT coating was employed to improve the performance of NFP. The experimental results demonstrated that 650 ℃ was the optimal calcination temperature and the NFP@PEDOT exhibited a high desalination capacity (22.9 mAh/g) and cycle stability (retained 80.8% of the desalination capacity after 300 cycles at 100 mA/g), which attributed to the improved conductivity and the inhibition of iron ion leaching from the electrode. This study provides a strategy to improve conductivity and the stability of electrode materials, which facilitates the development of high-performance desalination batteries.
Last Update:
2022-09-01