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. 2015 Jul 22;5(3):1250–1255. doi: 10.3390/nano5031250

Figure 2.

Figure 2

SEM images of the samples prepared with various molar mass of H2C2O4: (a) 0 mol, (b) 0.1 mol, (c) 0.25 mol and (d) the corresponding magnified image of (c).