“…Typically, MXene is synthesized from the phase (MAX phase), where M is a transition metal, A refers to a IIIA or IVA element, X represents carbon or nitrogen atoms, and n = 1, 2, 3 integers. Therefore, different MXene chemical structures, including Ti 3 C 2 T x 17 – 19 , Ta 4 C 3 20 , 21 , Nb 2 C 22 – 24 , and ZrC 25 , 26 , are available. Ti 3 C 2 has been used widely.…”