Extended Data Fig. 2: SEM images.
From: Multi-heteroatom-doped carbon from waste-yeast biomass for sustained water splitting
SEM images of (a) R-0 (without glutaraldehyde/NaCl) (b) R-4 (without glutaraldehyde), (c) R-5 (without hydrothermal process), and (d) R-2 (with glutaraldehyde/NaCl). Scale bars in 2 µm.
