Fig. 8 | Scientific Reports

Fig. 8

From: Fe-N catalyst derived from and supported on Lycopodium clavatum sporopollenin exine capsules for the oxygen reduction reaction

Fig. 8

RRDE linear sweep voltammograms comparison of 20% Pt/C and Fe-N-aSpEc. Note that ring current appears noisier than disk current. This is attributed to mass transport and disk rotation speed which can induce an abrupt adsorption of Hydrogen peroxide and desorption of [OH]- ions from the surface of this secondary electrode which generate noise in the µA range.

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