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Figure 2 : SEM images of Pd-Sn deposits prepared in 0.02 M SnCl2 + 0.0025 M PdCl2 + 0.01 M C6H11O7Na + 3.0 M HCl at 1.5 mA/cm2 for various deposition time: (a) 5 min, (b) 25 min, (c) 45 min, (d) 60 min.