@article{Wei2025, 
author = {Mingyang Wei and Jing Wang and Xiaoqing Ma and Yuzhe Cao and Xiaolei Yuan and Lixia Yang and Zhao Cai},
title = {Lattice Cl− reconstruction in a ternary hydroxychloride pre-electrocatalyst for efficient saline water oxidation},
year = {2025},
journal = {Carbon Future},
volume = {2},
number = {3},
pages = {9200052},
keywords = {electrocatalysis, corrosion resistance, seawater splitting, hydroxychloride, pre-catalyst},
url = {https://www.sciopen.com/article/10.26599/CF.2025.9200052},
doi = {10.26599/CF.2025.9200052},
abstract = {The development of efficient electrocatalysts for saline water oxidation (SWO) is imperative for advancing seawater splitting technology to produce green hydrogen. In this work, we report a NiFeCo hydroxychloride pre-electrocatalyst with the merits of high surface area and anti-corrosion, which exhibited both active and stable SWO performance. The lattice Cl− of NiFeCo hydroxychloride was leached during catalysis, leading to the 35.4% enlarged surface area of the catalysts, which showed a SWO overpotential of 369 mV at 100 mA·cm−2, which is 105 and 154 mV lower than that of the NiFeCo layered double hydroxide and commercial RuO2 catalysts, respectively. Moreover, in-situ Raman demonstrated the incorporation of electrolyte Cl− to the lattice of the catalysts and the re-formation of Co–Cl bonds, which resulted in the enhanced anti-corrosion performance and high electrocatalytic stability for 100 h. These results provide a convincing demonstration of the reconstruction of ternary hydroxychloride pre-electrocatalysts for efficient seawater splitting hydrogen production.}
}