钛基金属氧化物电极的失活机制及改进方法的研究进展

Research Progress on Deactivation Mechanisms and Improvement Methods of Dimensionally Stable Anode

钛基金属氧化物电极(Dimensionally Stable Anode,DSA)作为阳极的电化学氧化技术在废水处理与回用领域有广阔的应用前景。阳极的稳定性是电化学氧化技术的核心,然而,大多DSA存在寿命短的缺点,限制了它们在工业生产中的大规模应用。因此研究者对DSA的失活机制以及改进方法进行了深入的研究。本文介绍了DSA的稳定性以及失活机制的研究进展和主要研究结果,并对失活机制进行了分类总结。然后分类简述了国内外学者改进DSA稳定性的三类主要方法。通过综合考虑失活机制和改进方法,DSA今后的发展趋势和研究重点是结合目标污染物研究目前未知的其余失活机制以及提高电化学活性以改善碳沉积现象。

The electrochemical oxidation technology using dimensionally stable anode(DSA)as the anode has broad application prospects in the field of wastewater treatment and reuse.The stability of the anode is the core of the electrochemical oxidation technology.However,most DSAs have the shortcoming of short life,which limits their large-scale application in industrial production.Therefore,researchers have conducted in-depth research on the deactivation mechanisms and improvement methods of DSA.This article introduces the research progress and main research results of the stability and deactivation mechanisms of DSA,and classifies and summarizes the deactivation mechanisms.Then,the three main methods used by researchers to improve the stability and serve life of DSA are briefly described.By comprehensively considering the deactivation mechanisms and improvement methods,the future development trend and research focus of DSA is to combine the target pollutants to study the remaining deactivation mechanisms that are currently unknown and improve the electrochemical activity of DSA to slow done the carbonaceous deposition.