{"title":"Crystalline CoFeP@amorphous NiCoP electrocatalysts with high-efficient alkaline seawater splitting performances","authors":"Shengke Tang, Ding Li, Xiang Wu, Yoshio Bando","doi":"10.1007/s40843-025-3427-5","DOIUrl":null,"url":null,"abstract":"<div><p>It is essential to investigate economical and efficient catalysts for water electrolysis to develop clean energy sources. However, the sluggish kinetics and poor stability of single electrode catalyst limit their further applications in water splitting. In this work, we synthesize CoFeP@NiCoP materials consisting of a transition metal phosphide and an amorphous counterpart. The coral-like structure provides rich active sites for catalytic reaction. It delivers 356 mV at 500 mA cm<sup>−2</sup> for HER and 257 mV at 100 mA cm<sup>−2</sup> for OER. The two-electrode system presents a voltage of 1.76 V at 100 mA cm<sup>−2</sup>. For alkaline seawater electrolysis, the sample shows a cycle life of 150 h at 50 mA cm<sup>−2</sup>. This work proposes a simple strategy for designing advanced electrocatalysts for water splitting.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"68 8","pages":"2749 - 2755"},"PeriodicalIF":7.4000,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40843-025-3427-5.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Science China Materials","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s40843-025-3427-5","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
It is essential to investigate economical and efficient catalysts for water electrolysis to develop clean energy sources. However, the sluggish kinetics and poor stability of single electrode catalyst limit their further applications in water splitting. In this work, we synthesize CoFeP@NiCoP materials consisting of a transition metal phosphide and an amorphous counterpart. The coral-like structure provides rich active sites for catalytic reaction. It delivers 356 mV at 500 mA cm−2 for HER and 257 mV at 100 mA cm−2 for OER. The two-electrode system presents a voltage of 1.76 V at 100 mA cm−2. For alkaline seawater electrolysis, the sample shows a cycle life of 150 h at 50 mA cm−2. This work proposes a simple strategy for designing advanced electrocatalysts for water splitting.
研究经济高效的水电解催化剂是开发清洁能源的必要条件。然而，单电极催化剂动力学缓慢、稳定性差，限制了其在水裂解中的进一步应用。在这项工作中，我们合成了CoFeP@NiCoP由过渡金属磷化物和无定形对应物组成的材料。珊瑚状结构为催化反应提供了丰富的活性位点。它在500 mA cm - 2时为HER提供356 mV，在100 mA cm - 2时为OER提供257 mV。双电极系统在100 mA cm−2时的电压为1.76 V。对于碱性海水电解，样品在50 mA cm−2下的循环寿命为150小时。这项工作提出了一种简单的策略来设计先进的水分解电催化剂。
期刊介绍：
Science China Materials (SCM) is a globally peer-reviewed journal that covers all facets of materials science. It is supervised by the Chinese Academy of Sciences and co-sponsored by the Chinese Academy of Sciences and the National Natural Science Foundation of China. The journal is jointly published monthly in both printed and electronic forms by Science China Press and Springer. The aim of SCM is to encourage communication of high-quality, innovative research results at the cutting-edge interface of materials science with chemistry, physics, biology, and engineering. It focuses on breakthroughs from around the world and aims to become a world-leading academic journal for materials science.
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