{"title":"Hydrogen evolution at MoS2: rationalising the reaction mechanism and outlook for electrocatalyst development","authors":"Joseph D. Parkinson, Neil V. Rees","doi":"10.1007/s10008-025-06218-z","DOIUrl":null,"url":null,"abstract":"<div><p>MoS<sub>2</sub> has seen decades of research into enhancing its electrocatalytic activity towards the Hydrogen Evolution Reaction; however, consistently, the literature has been undecided and often contradictory on the true nature of its active sites. Herein, the understanding of MoS<sub>2</sub> active sites has been reviewed, collating chemical evidence across the literature using techniques such as XPS, Raman, and electrochemical studies to deduce a more complete picture of the origins of its catalytic activity. A seemingly contradictory literature landscape has been rationalised, concluding that the most accurate data appears to back sulphur defects, and thus low-coordinate Mo sites, as the active sites of interest, alongside demonstrating how parsing the literature in this way can help locate agreement where only contradiction was thought to reside. Following this, learning from the various techniques used in their elucidation is not only beneficial for future work on this material but also for electrocatalyst development as a whole.</p></div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":"29 2024","pages":"2075 - 2088"},"PeriodicalIF":2.6000,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10008-025-06218-z.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Solid State Electrochemistry","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s10008-025-06218-z","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ELECTROCHEMISTRY","Score":null,"Total":0}
引用次数: 0
Abstract
MoS2 has seen decades of research into enhancing its electrocatalytic activity towards the Hydrogen Evolution Reaction; however, consistently, the literature has been undecided and often contradictory on the true nature of its active sites. Herein, the understanding of MoS2 active sites has been reviewed, collating chemical evidence across the literature using techniques such as XPS, Raman, and electrochemical studies to deduce a more complete picture of the origins of its catalytic activity. A seemingly contradictory literature landscape has been rationalised, concluding that the most accurate data appears to back sulphur defects, and thus low-coordinate Mo sites, as the active sites of interest, alongside demonstrating how parsing the literature in this way can help locate agreement where only contradiction was thought to reside. Following this, learning from the various techniques used in their elucidation is not only beneficial for future work on this material but also for electrocatalyst development as a whole.
期刊介绍:
The Journal of Solid State Electrochemistry is devoted to all aspects of solid-state chemistry and solid-state physics in electrochemistry.
The Journal of Solid State Electrochemistry publishes papers on all aspects of electrochemistry of solid compounds, including experimental and theoretical, basic and applied work. It equally publishes papers on the thermodynamics and kinetics of electrochemical reactions if at least one actively participating phase is solid. Also of interest are articles on the transport of ions and electrons in solids whenever these processes are relevant to electrochemical reactions and on the use of solid-state electrochemical reactions in the analysis of solids and their surfaces.
The journal covers solid-state electrochemistry and focusses on the following fields: mechanisms of solid-state electrochemical reactions, semiconductor electrochemistry, electrochemical batteries, accumulators and fuel cells, electrochemical mineral leaching, galvanic metal plating, electrochemical potential memory devices, solid-state electrochemical sensors, ion and electron transport in solid materials and polymers, electrocatalysis, photoelectrochemistry, corrosion of solid materials, solid-state electroanalysis, electrochemical machining of materials, electrochromism and electrochromic devices, new electrochemical solid-state synthesis.
The Journal of Solid State Electrochemistry makes the professional in research and industry aware of this swift progress and its importance for future developments and success in the above-mentioned fields.