Fig. 2
SEM image of untreated corn stalk surface (a) and carbonized corn stalk (b), morphology of carbonized corn stalk air layer (c) and its surface pores (d).
Fig. 2 | Scientific Reports
SEM image of untreated corn stalk surface (a) and carbonized corn stalk (b), morphology of carbonized corn stalk air layer (c) and its surface pores (d).
