{"title":"Iridium nanoparticles embedded in ceria set a new benchmark for PEM water electrolyzers","authors":"David Hernández-Castillo, Kai S. Exner","doi":"10.1016/j.checat.2025.101355","DOIUrl":null,"url":null,"abstract":"In a recent <em>Science</em> article, Shi et al. introduce a novel ripening-induced embedding method for anchoring iridium nanoparticles within a ceria support, dramatically enhancing catalyst stability and performance for proton-exchange membrane (PEM) water electrolysis. Their catalyst achieved exceptional efficiency at an ultra-low iridium loading (0.3 mg/cm<sup>2</sup>) by maintaining a cell voltage of 1.72 V at 3 A/cm<sup>2</sup> with outstanding durability (1.33 μV/h degradation) over 6,000 h of operation, thus surpassing the US Department of Energy targets for 2026.","PeriodicalId":53121,"journal":{"name":"Chem Catalysis","volume":"32 1","pages":""},"PeriodicalIF":11.6000,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chem Catalysis","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1016/j.checat.2025.101355","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
In a recent Science article, Shi et al. introduce a novel ripening-induced embedding method for anchoring iridium nanoparticles within a ceria support, dramatically enhancing catalyst stability and performance for proton-exchange membrane (PEM) water electrolysis. Their catalyst achieved exceptional efficiency at an ultra-low iridium loading (0.3 mg/cm2) by maintaining a cell voltage of 1.72 V at 3 A/cm2 with outstanding durability (1.33 μV/h degradation) over 6,000 h of operation, thus surpassing the US Department of Energy targets for 2026.
期刊介绍：
Chem Catalysis is a monthly journal that publishes innovative research on fundamental and applied catalysis, providing a platform for researchers across chemistry, chemical engineering, and related fields. It serves as a premier resource for scientists and engineers in academia and industry, covering heterogeneous, homogeneous, and biocatalysis. Emphasizing transformative methods and technologies, the journal aims to advance understanding, introduce novel catalysts, and connect fundamental insights to real-world applications for societal benefit.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
