Fabrication of Nickel Nanotube Using Anodic Oxidation and Electrochemical Deposition Technologies and Its Hydrogen Storage Property

Figure 6

Nickel nanomaterial fabricated under different deposition conditions. (a) When the deposition current density is too high (20 mA/cm²). (b) When the length of deposit time is too long (10 min).

(a)

(b)