{"title":"Surface-optimized Ni2P/NPMC composites with N and P codoping for enhanced hydrogen evolution performance","authors":"Liyuan Qin , Wenlong Zhao , Zhenhua Cui , Jian Zhuang , Fang Feng","doi":"10.1016/j.apsusc.2025.162833","DOIUrl":null,"url":null,"abstract":"<div><div>Efficient hydrogen evolution reaction (HER) electrocatalysts are vital for sustainable energy solutions. In this study, the synthesis of nickel phosphide (Ni<sub>2</sub>P) supported on N–P-codoped mesoporous carbon (NPMC) derived from corn stalks was explored. Ni<sub>2</sub>P/NPMC composites were prepared via a hydrothermal method, and their HER performances were evaluated. Among the tested samples, Ni<sub>2</sub>P/NPMC-0.5 exhibited superior electrocatalytic activity, with an overpotential of 96 mV and a Tafel slope of 75 mV/dec at 10 mA/cm<sup>2</sup> in 1 M KOH, as well as very strong stability. Density functional theory (DFT) calculations further confirmed that the optimized |ΔG<sub>H*</sub>| value of Ni<sub>2</sub>P/NPMC-0.5 indicates favorable hydrogen adsorption, enhancing its catalytic efficiency. These results highlight the potential of combining biomass-derived carbon with Ni<sub>2</sub>P to create high-performance, cost-effective electrocatalysts for hydrogen production.</div></div>","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"694 ","pages":"Article 162833"},"PeriodicalIF":6.3000,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Surface Science","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0169433225005471","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Surface-optimized Ni2P/NPMC composites with N and P codoping for enhanced hydrogen evolution performance
Efficient hydrogen evolution reaction (HER) electrocatalysts are vital for sustainable energy solutions. In this study, the synthesis of nickel phosphide (Ni2P) supported on N–P-codoped mesoporous carbon (NPMC) derived from corn stalks was explored. Ni2P/NPMC composites were prepared via a hydrothermal method, and their HER performances were evaluated. Among the tested samples, Ni2P/NPMC-0.5 exhibited superior electrocatalytic activity, with an overpotential of 96 mV and a Tafel slope of 75 mV/dec at 10 mA/cm2 in 1 M KOH, as well as very strong stability. Density functional theory (DFT) calculations further confirmed that the optimized |ΔGH*| value of Ni2P/NPMC-0.5 indicates favorable hydrogen adsorption, enhancing its catalytic efficiency. These results highlight the potential of combining biomass-derived carbon with Ni2P to create high-performance, cost-effective electrocatalysts for hydrogen production.
期刊介绍：
Applied Surface Science covers topics contributing to a better understanding of surfaces, interfaces, nanostructures and their applications. The journal is concerned with scientific research on the atomic and molecular level of material properties determined with specific surface analytical techniques and/or computational methods, as well as the processing of such structures.
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
