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

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.