Interfacial amine-assisted electrodeposition of superhydrophilic/superaerophobic metal hydroxides for robust oxygen evolution catalysis

作     者：Qing Chen Keyu Wang Shiyi Li Yixing Wang Linfeng Lei Minghui Zhu Linzhou Zhuang Zhi Xu 

作者机构：State Key Laboratory of Chemical EngineeringSchool of Chemical EngineeringEast China University of Science and Technology Suzhou Laboratory 

出 版 物：《Science China Chemistry》 (中国科学:化学(英文版))

年 卷 期：2025年第68卷第5期

页      面：2188-2195页

核心收录：

学科分类：081702[工学-化学工艺] 081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 

基　　金：supported by the National Key R&D Program of China (2021YFB3801301) the National Natural Science Foundation of China (22378119, 22075076, 22208092) the Shanghai Pilot Program for Basic Research (22TQ1400100-4) 

主　　题：amine grafting superhydrophilicity superaerophobicity metal hydroxides water oxidation anticorrosion 

摘      要：The oxygen evolution reaction（OER） is crucial for the electrocatalytic water electrolysis into oxygen and hydrogen,but the fourelectron transfer process hinders the OER *** realize the highly efficient water splitting,the nonprecious metal-based electrodes that can optimize the adsorption energy of intermediates and generate H2with low overpotential and robust stability are ***,we report a surface modification strategy to grow the trimetallic FeCoNi hydroxide on the amine linkersgrafted carbon cloth（CC-NH2@FeCoNi） by ***-NH2@FeCoNi possesses a superhydrophilic/superaerophobic surface,which could significantly enhance the mass transfer,and meanwhile promote the in situ generation of MOOH active ***,the superhydrophilic surface could facilitate the adsorption of abundant OH-ions,and repel the Cl-ions via electrostatic repulsive force during seawater ***,compared with the CC@FeCoNi that grown on the pure CC（320 mV）,the CC-NH2@FeCoNi needs an obviously smaller overpotential of 270 mV to achieve a current density of 100 mA cm-2,and meanwhile it exhibits a superior durability for 100 h at a current density of 200 m A cm-2in both alkaline water and *** strategy could be even applied universally in the preparation of other nonprecious metal hydroxides for efficient OER catalysis.