文献类型：期刊文献

英文题名：A Conductive and Ion-Selective Electrocatalyst Enables Stable and Efficient Direct Saline Water Splitting

作者：He, Juan[1,2];Li, Shiyi[1];Zhang, Zekai[1];Duan, Ruidan[1];Xu, Fang[1];Lei, Linfeng[1];Wang, Yixing[1];Guan, Daqin[3];Hu, Zhiwei[4];Li, Siyao[1];Zhuang, Linzhou[1];Huang, Kang[3];Zhu, Minghui[1];Lian, Cheng[1];Zhou, Wei[3];Shao, Zongping[5];Xu, Zhi[1]

机构：[1]East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai, Peoples R China;[2]Huaiyin Normal Univ, Sch Chem & Chem Engn, Huaian, Jiangsu, Peoples R China;[3]Nanjing Tech Univ, Coll Chem Engn, State Key Lab Mat Oriented Chem Engn, Nanjing, Peoples R China;[4]Max Planck Inst Chem Phys Solids, Dresden, Germany;[5]Curtin Univ Technol, Dept Chem Engn, Perth, WA, Australia

年份：2025

卷号：7

期号：11

外文期刊名：CARBON ENERGY

收录：;EI(收录号：20253719153689);WOS:【SCI-EXPANDED(收录号:WOS:001568353200001)】；

基金：Funding provided by the National Key R&D Program of China (Grant No. 2021YFB3801301), National Natural Science Foundation of China (Grant Nos. 22378119, 22075076, and 22208092), and the Key R&D Plan for Science and Technology in Huai'an City (Industrial Category, HAG202301).

语种：英文

外文关键词：ion-selective; long-term stability; oxygen evolution reaction; scalable production; seawater electrolysis

摘要：Seawater electrolysis is promising for green hydrogen production, while its application is inhibited by sluggish anodic oxygen evolution reaction (OER) and rapid chloride corrosion-induced electrode deactivation. Herein, we report a conductive and ion-selective OER electrocatalyst with a CoFe alloy core and microporous metal-doped carbon shell. Co/Fe-N4-C active sites in the shell optimize the adsorption strength of intermediates and synergize with the metal core to endow the catalyst with high OER activity and selectivity, while the rich ultra-micropores in the shell demonstrate a significant sieving effect to hinder Cl- transfer, thus protecting the inner Co/Fe-N4-C active sites and metal core from Cl- corrosion. The catalyst is assembled in an alkaline seawater electrolyzer with an electrode geometric area of 254 cm2 and delivers a current density of 3000 A m-2 at 1.85 V for 330 h. Such catalysts can be synthesized in a large batch (100 g), providing sound opportunities for industrial seawater splitting.