文献类型：期刊文献

英文题名：W-Mediated Electron Accumulation in Ru-O-W Motifs Enables Ultra-Stable Oxygen Evolution Reaction in Acid

作者：Zhou, Kai[1];Liu, Heng[3];Liu, Zhongliang[1];Li, Xiaoning[4];Wang, Nana[5];Wang, Mingyue[5];Xue, Tianrui[1];Shen, Yongjun[1];Li, Hao[3];Li, Huihui[1];Li, Chunzhong[1,2]

机构：[1]East China Univ Sci & Technol, Minist Educ, Sch Chem Engn, Key Lab Ultrafine Mat, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Shanghai Engn Res Ctr Hierarch Nanomat, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China;[3]Tohoku Univ, Adv Inst Mat Res WPI AIMR, Sendai 9808577, Japan;[4]RMIT Univ, Ctr Atomaterials & Nanomfg CAN, Sch Sci, Melbourne, Vic 3000, Australia;[5]Univ Wollongong, Inst Superconducting & Elect Mat, Fac Engn & Informat Sci, North Wollongong, NSW 2500, Australia

年份：2025

卷号：64

期号：14

外文期刊名：ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

收录：;EI(收录号：20250517795383);WOS:【SCI-EXPANDED(收录号:WOS:001409897300001)】；

基金：This work was supported by the National Natural Science Foundation of China (U22B20143, 22478121), Shanghai Municipal Science and Technology Major Project, the Science and Technology Commission of Shanghai Municipality (22dz1205900), the Fundamental Research Funds for the Central Universities (JKD01241702), JSPS KAKENHI (No. JP23K13703 and JP24K23069) and Ensemble Grants for Early Career Researchers 2024 in Tohoku University. We appreciate the Center for Computational Materials Science, Institute for Materials Research, Tohoku University for the use of MASAMUNE-IMR (Project No. 202212-SCKXX-0204) and the Institute for Solid State Physics (ISSP) at the University of Tokyo for the use of their supercomputers. We thank the Shanghai Synchrotron Radiation Facility (SSRF) for supporting the XAS experiments at the BL14W1 beamline.

语种：英文

外文关键词：electron accumulation; co-doping; anti-overoxidation; acidic oxygen evolution reaction; proton exchange membrane water electrolysis

摘要：The development of efficient and durable oxygen evolution reaction (OER) catalysts is crucial for advancing proton exchange membrane water electrolysis (PEMWE) technology, especially in the pursuit of non-iridium alternatives. Herein, we report a Zn, W co-doped Ru3Zn0.85W0.15Ox (RZW) ternary oxide catalyst that exhibits a low overpotential of 200 mV and remarkable stability for over 4000 hours at 10 mA cm-2 in 0.1 M HClO4. The incorporation of highly electronegative W facilitates the efficient capture of electrons released from the sacrificial Zn species during OER, and subsequently mediated to Ru sites. The observed enhancement in electron density within the stable Ru-O-W motifs substantially improves the anti-overoxidation properties of the Ru active sites. Our findings highlight the importance of strategic metal doping in modulating the electronic structure of OER catalysts during operation, thereby facilitating the development of practical and long-lasting water electrolysis technologies.