Figure 4
From: Carbon-Coated, Diatomite-Derived Nanosilicon as a High Rate Capable Li-ion Battery Anode
Low to high magnification TEM characterization of a hexagonal honeycomb-shaped frustule-like nanoSi structure showing the SiNPs (a–c), XRD spectra of DE, nanoSi, and C-coated nanoSi (d), the EDX spectrum and elemental composition of DE before and after HCl leaching (e), and BET N2 adsorption isotherms of DE before and after purification, and nanoSi (f).
