Fig. 3From: Facile Synthesis of Porous Silicon Nanofibers by Magnesium Reduction for Application in Lithium Ion BatteriesTEM images of Mg-treated (a), HCl-treated (b), and PECVD-treated NFs (c) (the scale bars of images (a, c) and (b) indicate 50 and 200 nm, respectively)Back to article page