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. 2020 Nov 5;13:19. doi: 10.1007/s40820-020-00546-7

Fig. 2.

Fig. 2

a Main preparation process of kelp-carbon, including graphical illustrations on the microstructure of kelp blade and 3D hierarchical architecture of kelp-carbon. SEM images of the kelp-carbon: b overall morphology, c surface morphology, and d interior morphology. e N2 adsorption/desorption isotherm and f 2D-NLDFT pore size distribution of the kelp-carbon