Ti–Al–C MAX Phases and Ti–C MXenes via SHS Route and Acid Leaching

A. M. Shulpekov^a^, *, O. K. Lepakova^a, V. D. Kitler^a, N. N. Golobokov^a, and N. I. Afanas’ev^a^, *

^a Tomsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Tomsk, Russia

Correspondence to: *e-mail: shulp@yandex.ru

Received 28 April, 2021

Abstract—Combustion products containing Ti₂AlC and Ti₃AlC₂ MAX phases were prepared from Ti–Al–C mixtures by SHS method. The Ti₂CF₂ MXene was prepared from the Ti₂AlC MAX phase by leaching out aluminum from a layered structure of MAX phase with hydrofluoric acid. Such an approach can also be applied to the synthesis of graphene-like carbides, nitrides, and carbonitrides using MAX phases as precursors.

Keywords: SHS, МАХ phases, МХenes, selective etching

DOI: 10.3103/S1061386221030080