Figure 7
From: Selective crystallization with preferred lithium-ion storage capability of inorganic materials
Single-crystalline V 2 O 5 ·xH 2 O nanorings and microloops, and yolk-shell V 2 O 5 microspheres. (a-h) SEM images of single-crystalline V2O5·xH2O nanorings and microloops [43]. (i-l) SEM images of yolk-shell V2O5 microspheres. The insets of (j) and (k) show the schematic structure of yolk-shell V2O5 microspheres. Adapted from [44] and reproduced with the permission of the Royal Society of Chemistry.