电化学（中英文）2026，Vol.32Issue(7)：1-13,13.DOI:10.61558/2993-074X.3613
碱性海水电解镍基阳极的动态表面重构工程实现抗腐蚀
Dynamic Reconstruction Engineering of Anti-Corrosion Ni-Based Anodes for Alkaline Seawater Electrolysis
摘要
Abstract
Green hydrogen production via alkaline seawater electrolysis offers an environmentally sustainable and potentially cost-effective route to address both energy and climate challenges.Achieving long-term anode stability under complex ionic environments and industrial current densities remains a central bottleneck.Specifically,Ni-based anodes exhibit in-tense surface reconstruction during the oxygen evolution reaction,necessitating dynamic anti-corrosion strategies.This mini review systematically summarizes reconstruction engineering approaches to develop anti-corrosion Ni-based anodes of alkaline seawater electrolysis across increasingly complex ionic environments from simulated seawater to real seawater:(ⅰ)Cl-dominated;(ⅱ)Cl-with co-existing oxyanions,and(ⅲ)Cl-with co-existing Br-.Notably,the progress achieved by our group in dynamic reconstruction engineering is highlighted,as well as reported advances on reconstruction-induced chemical adsorption/fixation strategies to provide a broader mechanistic understanding.In a Cl-dominated corrosive environment,the introduction of Ag component enables in situ reconstruction into AgCl under the operating potential.This process immobilizes Cl-via AgCl formation and simultaneously suppresses interfacial Cl-enrichment and penetration through a co-ion exclusion effect.For Cl-with co-existing oxyanions,the oxyhydroxide species generated by Ni-based surface reconstruction preferentially adsorb oxygen-containing anions,thereby forming a stable anionic shielding layer.This layer lowers the probability of Cl-approach and adsorption,leading to effective mitigation of Cl--induced corrosion.Additionally,the mechanisms underlying bromide-induced anodic corrosion in Cl-with co-existing Br-are summarized,together with relevant reconstruction inhibition strategies.Finally,transferable anode design principles are proposed to push seawater electrolysis from materials demonstrations to device-level reliable operation.关键词
碱性海水电解/表面动态重构/氯腐蚀/含氧离子屏蔽层/溴腐蚀Key words
Alkaline seawater electrolysis/Dynamic surface reconstruction/Chloride-induced corrosion/Oxyanion shield-ing layer/Bromide-induced corrosion引用本文复制引用
张益钢,徐雯雯,张天宇,陆之毅..碱性海水电解镍基阳极的动态表面重构工程实现抗腐蚀[J].电化学（中英文）,2026,32(7):1-13,13.基金项目
We acknowledge the financial supports by Zhejiang Provincial Natural Science Foundation(ZCLQN26B0301),the Leading Innovative and En-trepreneur Team Introduction Program of Zhejiang(2025R01010),Ningbo Yongjiang Talent Programme,Fundamental Research Funds for the Provincial Universities of Zhejiang(ZX2025000270),and Bai-ma Lake Laboratory Joint Fund of Zhejiang Pro-vincial Natural Science Foundation of China(No.LBMHZ25B060001). （ZCLQN26B0301）
