工业水处理 ›› 2025, Vol. 45 ›› Issue (3): 44-54. doi: 10.19965/j.cnki.iwt.2024-0350

• 专论与综述 • 上一篇    下一篇

电容去离子技术电极抗腐蚀性能研究进展

蒲梦晗(), 黎人铖, 肖伟龙, 高铭, 陈文清()   

  1. 四川大学建筑与环境学院,四川 成都 610065
  • 收稿日期:2024-09-06 出版日期:2025-03-20 发布日期:2025-03-24
  • 通讯作者: 陈文清
  • 作者简介:

    蒲梦晗(1999— ),硕士研究生,E-mail:

Progress on the anti-corrosion performance of electrodes for capacitive deionization technology

Menghan PU(), Rencheng LI, Weilong XIAO, Ming GAO, Wenqing CHEN()   

  1. College of Architecture and Environment, Sichuan University, Chengdu 610065, China
  • Received:2024-09-06 Online:2025-03-20 Published:2025-03-24
  • Contact: Wenqing CHEN

摘要:

电容去离子(Capacitive deionization,CDI)作为一种新兴的海水淡化技术,具有低成本、低能耗和无二次污染等特点,在水处理领域展现出巨大的应用潜力。然而,电极腐蚀问题已成为限制CDI技术实际应用的主要难题。针对这一问题,详细阐述了不同类型电极材料的腐蚀机理,说明了运行参数变化和电解液性质对CDI系统电极腐蚀的影响,并探讨腐蚀对电极材料性能和使用寿命的潜在危害。此外,从装置构型的设计、电极材料的改性和操作参数的优化等方面总结了减缓CDI系统电极腐蚀的策略,最后讨论了未来CDI技术抗电极腐蚀可能的研究方向。今后,开发具有卓越抗腐蚀性能的电极材料,并不断改进装置构型和优化操作参数将推动CDI系统电极抗腐蚀性能,拓宽CDI在水处理领域的应用。

关键词: 电容去离子, 腐蚀, 稳定性, 电极材料, 法拉第反应

Abstract:

Capacitive deionization (CDI), as an emerging desalination technology, has shown great potential for application in the field of water treatment due to its features of low cost, low energy consumption and no secondary pollution. However, electrode corrosion has become a major challenge restricting the practical application of CDI technology. To address this problem, the corrosion mechanisms of different types of electrode materials were described in detail, the effects of changes in operating parameters and electrolyte properties on the corrosion of CDI electrode were illustrated, and the potential hazards of corrosion on material performance and service life, as well as the challenges of CDI in highly corrosive environments, were discussed. In addition, strategies to mitigate the corrosion of CDI electrode were summarized in terms of the design of device configuration, modification of electrode materials, and optimization of operating parameters. Finally, possible research directions for corrosion resistance of CDI technology were discussed. In the future, the development of electrode materials with superior corrosion resistance and the continuous improvement of device configurations and optimization of operating parameters would promote the corrosion resistance of CDI system electrodes and broaden the application of CDI in water treatment.

Key words: capacitive deionization, corrosion, stability, electrode materials, Faradaic reaction

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