文献类型：期刊文献

英文题名：Decoupling stability and selectivity in chlorine evolution via substrate-dopant regulated electronic structure of ruthenium oxide

作者：Wu, Yuting[1];Duan, Ruidan[1];Zhang, Guoqing[1];Zhang, Ying[1];Lei, Linfeng[1,3];Zhuang, Linzhou[1,2];Xu, Zhi[1,2]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Shanghai Key Lab Multiphase Mat Chem Engn, Shanghai 200237, Peoples R China;[3]Suzhou Lab, Suzhou 215000, Peoples R China

年份：2026

卷号：329

外文期刊名：CHEMICAL ENGINEERING SCIENCE

收录：;EI(收录号：20261420426477);WOS:【SCI-EXPANDED(收录号:WOS:001730896200001)】；

基金：The authors gratefully acknowledge the research funding provided by National Natural Science Foundation of China (Grant Nos. 22378119, 22075076, and 22208092) , and Shanghai Pilot Program for Basic Research (22TQ1400100-4) .

语种：英文

外文关键词：Chlorine evolution reaction; Electronic regulation; Cl2 selectivity; Electrocatalyst stability

摘要：The industrial application of Ru-based catalysts for the chlorine evolution reaction (CER) is severely hindered by an intrinsic trade-off between stability, where the former is limited by Ru peroxidation and the latter by competitive oxygen evolution. To decouple these conflicting metrics, this work introduces a substrate-dopantmediated electronic modulation strategy. We demonstrate that Fe doping in the Ti4O7 support acts as an electron reservoir, remotely optimizing the electronic structure of the loaded RuO2 active sites. This precise regulation serves a dual function, enhancing stability by suppressing Ru4+ peroxidation while boosting selectivity by lowering the Lewis acid hardness of Ru sites, which promotes preferential Cl- adsorption per the hard-soft-acidbase principle. Consequently, the optimized FeRu0.25-Ti4O7-2 wt% catalyst, synthesized via a scalable mechanochemical ball-milling method, exhibits a low overpotential of 62 mV, high selectivity (87%), and a 5.5-fold higher mass activity than commercial dimensionally stable anodes. This work presents a facile, highperformance paradigm for designing robust CER anodes that break the conventional stability-selectivity tradeoff.