Accurate Assessment of the Oxygen Reduction Electrocatalytic Activity of Mn/Polypyrrole Nanocomposites Based on Rotating Disk Electrode Measurements, Complemented with Multitechnique Structural Characterizations

Figure 4

FE-SEM micrographs of (a) graphite, (b) PPy (PPy60/G), and (c, d) Mn/PPy electrodeposited on graphite (Mn-PPy240/G). (e) A typical EDX spectrum recorded in a representative area.

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