文献类型：期刊文献

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

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

机构：[1]State Key Laboratory of Chemical Engineering,East China University of Science and Technology,Shanghai,China;[2]School of Chemistry and Chemical Engineering,Huaiyin Normal University,Jiangsu,China;[3]State Key Laboratory of Materials‐Oriented Chemical Engineering,College of Chemical Engineering,Nanjing Tech University,Nanjing,China;[4]Max Planck Institute for Chemical Physics of Solids,Dresden,Germany;[5]Department of Chemical Engineering,Curtin University of Technology,Perth,Western Australia,Australia

年份：2025

卷号：7

期号：11

起止页码：108

中文期刊名：Carbon Energy

外文期刊名：碳能源(英文)

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);the Key R&D Plan for Science and Technology in Huai'an City(Industrial Category,HAG202301).

语种：英文

中文关键词：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‐N_(4)‐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‐N_(4)‐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 cm^(2) 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.