@article{Xu2026, 
author = {Chao Xu and Lei Xu and Jiani Chen and Xixi Wang and Shijie Gao and Jie Miao and Ran Ran and Wei Zhou},
title = {A Reversed-Active Sites Strategy to Boost the Activity and Durability of Perovskite for Seawater Electrolysis},
year = {2026},
journal = {Energy & Environmental Materials},
volume = {9},
number = {1},
keywords = {alkaline seawater electrolysis, lattice oxygen-mediated mechanism, oxygen evolution reaction, reversed-active sites},
url = {https://www.sciopen.com/article/10.1002/eem2.70117},
doi = {10.1002/eem2.70117},
abstract = {Seawater electrolysis has attracted considerable attention in hydrogen production. However, the chloride ions (Cl−) in seawater can corrode metal sites and decrease the lifespans of the oxygen evolution reaction (OER). Herein, we report a reversed-active sites strategy, converting Cl−-affinitive metal sites to Cl−-repellent oxygen sites, for OER in alkaline seawater electrolysis. First, ex/in situ experiments confirm the effectiveness of such a strategy using typical perovskites following the adsorbate evolution mechanism (AEM) or lattice oxygen-mediated mechanism (LOM). Furthermore, the origins of the superior activity and durability of as-prepared La0.3SrCo0.5Fe0.5Ox (La0.3) can be ascribed to higher participation of lattice oxygen in OER, rapid bulk oxygen diffusion, and excellent OH− adsorption kinetics. Hence, an alkaline seawater electrolytic cell with La0.3 as the anode produces 10 mA cm−2 at just 1.57 V and maintains near-constant activity over 150 hours. This work introduces novel concepts for the production of superactive and steady electrocatalysts for the electrolysis of seawater.}
}