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      Intercalation and delamination of layered carbides and carbonitrides.

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          Abstract

          Intercalation and delamination of two-dimensional solids in many cases is a requisite step for exploiting their unique properties. Herein we report on the intercalation of two-dimensional Ti3C2, Ti3CN and TiNbC-so called MXenes. Intercalation of hydrazine, and its co-intercalation with N,N-dimethylformamide, resulted in increases of the c-lattice parameters of surface functionalized f-Ti3C2, from 19.5 to 25.48 and 26.8 Å, respectively. Urea is also intercalated into f-Ti3C2. Molecular dynamics simulations suggest that a hydrazine monolayer intercalates between f-Ti3C2 layers. Hydrazine is also intercalated into f-Ti3CN and f-TiNbC. When dimethyl sulphoxide is intercalated into f-Ti3C2, followed by sonication in water, the f-Ti3C2 is delaminated forming a stable colloidal solution that is in turn filtered to produce MXene 'paper'. The latter shows excellent Li-ion capacity at extremely high charging rates.

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          Author and article information

          Journal
          Nat Commun
          Nature communications
          Springer Science and Business Media LLC
          2041-1723
          2041-1723
          2013
          : 4
          Affiliations
          [1 ] Department of Materials Science and Engineering, Drexel University, Philadelphia, Pennsylvania 19104, USA.
          Article
          ncomms2664
          10.1038/ncomms2664
          23591883
          330ef28b-b1f2-43f0-8912-a66725f1d362
          History

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