Figure 3.

Recorded differential-pulsed voltammograms (0.2 V modulation amplitude, 0.02 V step potential). They were recorded at (a) AgCNF, (b) AgZCNF electrodes in 0.1 M Na₂SO₄ supporting electrolyte and in the presence of various IBP concentrations that consists 0.5 to 5 mg.L⁻¹ (curves 2 to 11). Inset: calibration plots of the anodic current recorded at E = +1.15 V vs. IBP concentration.