| Abstract Scope |
We introduce a new family of 2D nanomaterials, called transition metal carbo-chalcogenides (TMCCs), which have an atomic layer order of X-TM-C-TM-X (TM = transition metal, C = carbon, X = chalcogen). These nanomaterials merge two well-known families, transition metal carbides/nitrides (MXenes) and transition metal dichalcogenides (TMDCs). We synthesized the first members of TMCCs, Nb2S2C and Ta2S2C, using liquid exfoliation by electrochemical lithium intercalation. In our talk, we will compare Nb2S2C with its MXene and TMDC counterparts, Nb2C and NbS2, respectively. We will discuss the synthesis process of the parent multilayers and the expansion of the TMCC family to include TaxNb2-xS2C (where 0 ≤ x ≤ 2). The effect of different transition metals on TMCC properties will be discussed, along with their electrochemical performance as electrodes for energy storage and conversion. Tip-enhanced Raman spectroscopy was used to study the materials and provide nanoscale chemical imaging. |