Effects of Current on Arc Fabrication of Cu Nanoparticles

Figure 1

SEM images showing the effects of seven different currents (50–160 A) on the arc fabricated brown copper nanoparticles, Cu Nps (a)–(g), along with the starting copper rod image, prior to the arc discharge (h).

(a) 50 A

(b) 70 A

(c) 90 A

(d) 100 A

(e) 115 A

(f) 150 A

(g) 160 A

(h) The starting copper electrode