Al, P-co-doping and interface engineering synergistically boost the electrocatalytic performance of WS2/Ni3S2/NiS nanosheet heterostructure for efficient hydrogen evolution reaction†
Mghaib Al Shahrani, Mabrook S. Amer, Ahmad A. Alsaleh, Prabhakarn Arunachalam and Abdullah M. Al-Mayouf
{"title":"Al, P-co-doping and interface engineering synergistically boost the electrocatalytic performance of WS2/Ni3S2/NiS nanosheet heterostructure for efficient hydrogen evolution reaction†","authors":"Mghaib Al Shahrani, Mabrook S. Amer, Ahmad A. Alsaleh, Prabhakarn Arunachalam and Abdullah M. Al-Mayouf","doi":"10.1039/D4RA05868B","DOIUrl":null,"url":null,"abstract":"<p >The fabrication of earth-abundant electrocatalysts capable of facilitating hydrogen evolution reactions (HER) is essential for creating sustainable hydrogen fuel by water splitting. Here, we present a one-pot hydrothermal approach for producing aluminum and phosphorus co-doped NiS/Ni<small><sub>3</sub></small>S<small><sub>2</sub></small>/WS<small><sub>2</sub></small> heterostructure hybrid frameworks on nickel foam. The optimal Al and Al, P/NiWS-b@NF catalyst exhibits high HER activity with overpotentials of 139 and 227 mV at current densities of 10 and 50 mA cm<small><sup>−2</sup></small>, respectively, thanks to the synergistic effect of the various constituents of the catalyst. What is more, it also exhibits a promising Tafel slope of 124 mV dec<small><sup>−1</sup></small> and is electrocatalytically durable for 10 hours in 0.5 M H<small><sub>2</sub></small>SO<small><sub>4</sub></small> solution. The high HER activity of Al, P/NiWS-b@NF could be explained by the large number of active sites of the hierarchical heterostructure and electron effects produced by the combination of interfacial and aluminum and phosphorus doping.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":null,"pages":null},"PeriodicalIF":3.9000,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ra/d4ra05868b?page=search","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"RSC Advances","FirstCategoryId":"92","ListUrlMain":"https://pubs.rsc.org/en/content/articlelanding/2024/ra/d4ra05868b","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
The fabrication of earth-abundant electrocatalysts capable of facilitating hydrogen evolution reactions (HER) is essential for creating sustainable hydrogen fuel by water splitting. Here, we present a one-pot hydrothermal approach for producing aluminum and phosphorus co-doped NiS/Ni3S2/WS2 heterostructure hybrid frameworks on nickel foam. The optimal Al and Al, P/NiWS-b@NF catalyst exhibits high HER activity with overpotentials of 139 and 227 mV at current densities of 10 and 50 mA cm−2, respectively, thanks to the synergistic effect of the various constituents of the catalyst. What is more, it also exhibits a promising Tafel slope of 124 mV dec−1 and is electrocatalytically durable for 10 hours in 0.5 M H2SO4 solution. The high HER activity of Al, P/NiWS-b@NF could be explained by the large number of active sites of the hierarchical heterostructure and electron effects produced by the combination of interfacial and aluminum and phosphorus doping.
期刊介绍:
An international, peer-reviewed journal covering all of the chemical sciences, including multidisciplinary and emerging areas. RSC Advances is a gold open access journal allowing researchers free access to research articles, and offering an affordable open access publishing option for authors around the world.