Se Nanopowder Conversion into Lubricious 2D Selenide Layers by Tribochemical Reactions (Adv. Mater. 42/2023)

Abstract

In article number 2302076, Philipp G. Grützmacher, Manel Rodríguez Ripoll, Carsten Gachot, Ali Erdemir, Maria Clelia Righi, and co-workers demonstrate that when Se nanoparticles are sprinkled onto Mo or W metallic surfaces, friction comes down dramatically through the formation of transition metal dichalcogenides (TMDs) during sliding. Ab initio molecular dynamics simulations uncover the atomistic mechanisms responsible for the formation of these TMDs.