[1]徐东川,李朝林,王文辉.PEDOT包覆Na3Fe2(PO4)3强化海水淡化电池除盐性能[J].中国给水排水,2022,38(17):7-14.
　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.
点击复制

PEDOT包覆Na3Fe2(PO4)3强化海水淡化电池除盐性能

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第38卷 期数: 2022年第17期 页码: 7-14 栏目: 出版日期: 2022-09-01
Title:
Synthesis of Na3Fe2(PO4)3 and the Enhanced Desalinization Performance of Na3Fe2(PO4)3 by PEDOT Coating
作者:
徐东川， 李朝林， 王文辉
（哈尔滨工业大学<深圳> 土木与环境工程学院，广东 深圳 518055）
Author(s):
XU　Dong-chuan， LI　Chao-lin， WANG　Wen-hui
（School of Civil and Environmental Engineering， Harbin Institute of Technology ， Shenzhen 518055， China）
关键词:
海水淡化;  海水淡化电池;  储钠电极;  PEDOT;  磷酸铁钠
Keywords:
seawater desalination;  desalination battery;  Na-storage electrode;  PEDOT;  Na3Fe2(PO4)3
摘要:
海水淡化电池兼具环保、节能和操作条件温和的优点，是一种极具应用潜力的下一代海水淡化技术。然而，海水淡化电池的发展受限于工作窗口合适、高除盐容量和循环稳定的储钠电极研发。为此，优化了海水淡化电池Na3Fe2（PO4）3（NFP）新型储钠电极的合成温度，并进一步制备出PEDOT包覆的NFP（NFP@PEDOT）。实验表明，最优的煅烧温度为650 ℃，PEDOT包覆提高了电极的导电性，并抑制了NFP中铁离子的溶出。NFP@PEDOT展现出优异的海水淡化容量（即22.9 mAh/g）和循环稳定性，在100 mA/g下经历300次脱盐/再生循环后容量保持率仍可达80.8%。这提供了一种同时改善电极材料离子溶出和导电性的策略，有助于高性能海水淡化电池电极材料的研发。
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.

相似文献/References:

[1]李东洋,汪程鹏,王生辉,等.海岛反渗透海水淡化透平式能量回收技术工程应用[J].中国给水排水,2020,36(24):130.
　LI Dong-yang,WANG Cheng-peng,WANG Sheng-hui,et al.Application of Turbine Energy Recovery Technology in an Island Reverse Osmosis Desalination Project[J].China Water & Wastewater,2020,36(17):130.
[2]郝晓地,王邦彦,曹达啟,等.海水淡化工程全球大规模应用发展趋势[J].中国给水排水,2022,38(10):18.
　HAOXiao-di,WANGBang-yan,CAODa-qi,et al.Global Trends of Desalination towards Large-scale Engineering Applications[J].China Water & Wastewater,2022,38(17):18.
[3]卢彪,杨志峰,马延强,等.青岛某市政用途全流程海水淡化厂工艺设计[J].中国给水排水,2023,39(4):47.
　LUBiao,YANGZhi-feng,MAYan-qiang,et al.Process Design of a Whole-process Seawater Desalination Plant for Municipal Water Supply in Qingdao[J].China Water & Wastewater,2023,39(17):47.
[4]何才昌.高速气浮在伊朗大型海水淡化工程的应用[J].中国给水排水,2023,39(18):141.
　HECai-chang.Application of High-speed Air Floatation in Large Seawater Desalination Project in Iran[J].China Water & Wastewater,2023,39(17):141.

更新日期/Last Update: 2022-09-01