Figure 3.

Electrochemical properties of the air electrode containing Co3O4 nanoparticles. Air electrode containing Co3O4 nanoparticles at a constant current density of 0.4 mA·cm-2 (voltage range of 4.35 to 2.3 V). (a) Initial voltage profile and (b) cyclic performance.

Kim and Park Nanoscale Research Letters 2012 7:47   doi:10.1186/1556-276X-7-47
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