Lithium Ion Storage Characteristics of Mechanically Fractured Titanate Nanotubes

Figure 2

TEM images of (a) the as-prepared protonated titanate nanotubes, and the titanate nanotubes with mechanical milling in condition of (b) 15, (c) 30, (d) 45, and (e) 60 minutes at 100 rpm.

(a)

(b)

(c)

(d)

(e)