Figure 2: XRD patterns of nickel deposits obtained from sulfate electrolyte with the concentration of saccharin of (1) 0.0 g/l, (2) 0.1 g/l, (3) 0.3 g/l, (4) 0.5 g/l, (5) 0.8 g/l, and (6) 1.2 g/l, repectively. The vertical lines at the bottom are the standard XRD pattern of nickel metal (JCPDF card no. 04-0850).