Extended Data Fig. 9: Delamination of h-MXenes. | Nature Chemistry

Extended Data Fig. 9: Delamination of h-MXenes.

From: Hybrid organic–inorganic two-dimensional metal carbide MXenes with amido- and imido-terminated surfaces

Extended Data Fig. 9

a, Schematic process of the preparation of delaminated h-MXenes. b, Powder XRD patterns of different delaminated h-MXenes. c, SEM images of delaminated Ti3C2(hda)2/3 h-MXene prepared by reacting delaminated Ti3C2Cl2 with deprotonated hexadecylamine. d, Powder XRD patterns of bulk Ti3C2(oca)2/3, and d-Ti3C2(oca)2/3 before and after oleylamine treatment. The films prepared from delaminated h-MXene solutions showed X-ray diffraction patterns with (0 0 0 l) peaks shifted to smaller 2θ angles as compared to their bulk counterparts, and the \((1 1 \overline{2} 0)\) peak vanished, as expected for re-stacked MXenes with randomly rotated individual sheets22. e, Photographs of stable colloidal solutions of delaminated h-MXenes dispersed in CHCl3 at high concentrations (top) and in dilute solutions, showing Tyndall scattering. f, TEM image of d-Ti3C2(oca/ola)2/3 MXene flakes deposited from a colloidal solution. (Inset) Fast Fourier transform (FFT) showing the crystallinity and hexagonal symmetry of the individual flake. g, AFM image of the monolayer d-Ti3C2(hda)2/3. h, Raman spectra of Ti3C2(bua)2/3, d-Ti3C2(bua)2/3, and d-Ti3C2(pra/PEG1k)2/3.

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