Pontificia Universidad Católica de Chile Pontificia Universidad Católica de Chile
Resenkranz A., Gruzmacher P., Espinoza R., Fuenzalida V., Blanco E., Escalona N., Gracia F., Villarroel R., Guo L., Kang R., Mucklich F., Suarez S., Zhang Z. (2019)

Multi-layer Ti3C2Tx-nanoparticles (MXenes) as solid lubricants – Role of surface terminations and intercalated water

Revista : Applied Surface Science
Volumen : 494
Páginas : 13-21
Tipo de publicación : ISI Ir a publicación


MXenes, a new class of 2-dimensional materials, and in particular Ti3C2Tx-nanoparticles,have attractedconsiderable attention in energy storage and catalysislately.Despitehavinga weakly-bounded multi-layered structure with self-lubricatingability, the usage of MXenes for tribological purposes is surprisingly underexplored. Here, we address for the first time the influence of surface terminations and intercalated water inTi3C2Tx-nanoparticles on friction and wear when used as a solid lubricant. Ball-on-diskexperimentsat4 % relative humidityACCEPTED MANUSCRIPTACCEPTED MANUSCRIPTrevealexcellent tribologicalproperties of theseTi3C2Tx-nanoparticles with a remarkable fric-tion reduction of about 300 % coupled with the potential to greatly reduce adhesive, abrasive and tribo-chemical wear. Advanced,complementary materials’characterisation underlinesthe significant influence of surface terminations and intercalated water, definingthem as key pa-rameters to tailorthe resulting frictional performance.Consequently, our results highlight Ti3C2Tx-nanoparticles as outstanding, next-generation solid lubricants in nano-and micro-scale systems.