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Fig. 4 | Nanoscale Research Letters

Fig. 4

From: Pd nanoparticle-modified electrodes for nonenzymatic hydrogen peroxide detection

Fig. 4

a Amperometric response of the Pd NP/GCE (~85 % coverage) upon successive additions of hydrogen peroxide at the potential of −0.11 V. The inset shows the corresponding calibration plots. b The cyclic voltammograms (CV) of the Pd NP-modified electrode (~85 % coverage) in 0.05 M PBS (pH = 7.4) containing 0.01 M H2O2 at different scan rates (from top to bottom, 0.1–0.9 V s−1). c Dependence of the reduction current on the square root of the scan rate

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