维普中文期刊产品整合服务

A stable oxygen evolution splitting electrocatalysts high entropy alloy FeCoNiMnMo in simulated seawater

查看全文 作　　者：Peng [1,2]Li;Yuanpeng [3]Yao;Wengen [3]Ouyang;Ze [3]Liu;Huayi [1,2]Yin;Dihua [1,2]Wang 高影响力作者 机构地区：[1]International Cooperation Base for Sustainable Utilization of Resources and Energy in Hubei Province,Wuhan University,Wuhan 430072,China;[2]School of Resource and Environmental Science,Wuhan University,Wuhan 430072,China;[3]Department of Engineering Mechanics,School of Civil Engineering,Wuhan University,Wuhan 430072,China高影响力机构 出　　处：《Journal of Materials Science & Technology》索引2023年第7期,共7页高影响力期刊 基　　金：This work was supported by the National Natural Science Foundation of China(Nos.52031008,12102307,and 11872284). 摘　　要：Stabilizing anode for oxygen evolution(OER)in chlorine-containing electrolytes is a significant challenge.Adding corrosion inhibitors in electrolytes can alleviate this problem,but the type and dosage of cor-rosion inhibitors need a lot of exploration,and side reactions may occur to reduce current efficiency.Herein,we prepared a FeCoNiMnMo High entropy alloy(HEA)electrode for OER in simulated seawa-ter without corrosion inhibitors.It exhibits great electrocatalytic activity(overpotential(η)=237 mV at 10 mA cm^(-2))and excellent stability(200 h at 100 mA cm^(-2)).Experiments and Density Functional The-ory(DFT)calculation show that the protective layer containing K_(2)MoO_(4)is the crucial factor for chlorine resistance of FeCoNiMnMo electrode.The tightly adsorbed state of Cl-and K_(2)MoO_(4)ensures that other oxides are not corroded.And the externally added K_(2)MoO_(4)cannot protect the electrode.In addition,the high-entropy effect of HEA reduces the dissolution of the alloy.This work provides an efficient way to prepare a noble-free HEA catalyst that can stabilize oxygen evolution in corrosive electrolytes. 关 键 词：High entropy alloy Oxygen evolution reaction Corrosion inhibitor Chlorine resistance K_(2)MoO_(4)
相关文献

参考文献(46)

引证文献(6)

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1　渝公网安备 50019002500403号　违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费