Figure 3.

Cyclic voltammetry curves. (a) Cyclic voltammetry curves of mesoporous hollow carbon spheres in a voltage range from −0.8 to 0.8 V and (b) in the range from 0 to 0.8 V at different scan rates

Wilgosz et al. Nanoscale Research Letters 2012 7:269   doi:10.1186/1556-276X-7-269
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