Nanocomposite of metal nanoparticles and HB sheets. (a) Schematic of the facile nanocomposite formation of HB sheets with metal nanoparticles.⁶⁰ (b–e). Transmission electron microscopy (TEM) images of Cu–HB nanocomposites.⁶⁰ (f) Fast Fourier transformed image at the squared region in panel e.⁶⁰ (g) Nanoparticle size distribution.⁶⁰ (h) Energy dispersive X-ray spectroscopy was performed only at the sample site in scanning transmission electron microscopy mode.⁶⁰ (i) TEM image of Ni-HB nanocomposite.⁶⁴ (j) Histogram of Ni nanoparticles on HB.⁶⁴