Electrode materials Electrolyte medium Electrosynthesis method Reference Pt, Au, and glassy carbon 0.1 M HClO4 + 0.4 M NaClO4 + 1 × 10−3 M o -AP (1 < pH < 7) Potentiodynamic cycling − 0.25 V and 0.70 V (SCE) [10 ] Pt electrode 0.4 mol cm−3 of NaClO4 + 10−2 mol dm− 3 of o -AP Potentiodynamic cycling −0.25 V and 0.75 V (SCE) [12 ] Carbon paste electrode 5 mM o -AP+ 0.5 M HClO4 in the presence and in the absence of sodium dodecyl sulfate Potentiodynamic cycling −0.1 V and 0.7 V (Ag/AgCl/KCl 3 M) [13 ] Platinum and glassy carbon electrodes 0.2 M NaClO4 + 0.1 M HClO4 + 5 × 10−3 M o -AP solution Potentiodynamic cycling 0.2 V and 1.3 V (RHE) [14 ] Glassy carbon electrodes chemical (nitric acid (67% wt/wt) and sulfuric acid (98% wt/wt) for 10 min) and electrochemically (1.85 V (SCE) for 5 min) pretreated before electropolymerization of o -AP 0.1 M H2 SO4 + 0.05 M o -AP Potentiodynamic method (−0.2 V and 0.7 V versus SCE) [15 ] Basal-plane pyrolytic graphite and In-Sn oxide conducting glass 0.5 M Na2 SO4 solution (pH 1) + 50 mM o -AP Potentiodynamic cycling (−0.4 and 1.0 V versus sodium chloride saturated calomel electrode) [16 ] Glassy carbon 1 M SO4 H2 + 0.5 M Na2 SO4 + 50 mM o -AP solution Potentiodynamic cycling (−0.2 V and 1.0 V versus SCE) [17 ] Glassy carbon and Pt electrodes 0.05 M o -AP in a mixture of 1 M H2 SO4 and 0.5 M Na2 SO4 Potentiodynamic cycling (−0.2 V to 0.8 V versus SCE) [18 ] Pt and Au electrodes 0.05 M o -AP + 0.5 M H2 SO4 solution Potentiostatic method (
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0
.
7
V; 0.8 V and 0.9 V versus SCE [19 ] Pt and GC electrodes 0.05 M o -aminophenol solution in 0.5 M HClO4. + 10 mM sulfonated nickel phtalocyanine Potentiodynamic cycling (–0.25 and 0.7 V versus SCE) [20 ] GC electrodes 0.10 M HClO4 + 0.10 M o -AP Potentiodynamic (−0.10 V and 1.00 V versus SCE) and potentiostatic (
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=
1
.
0
V for a given time) methods [21 ] Vitreous carbon, platinum, and copper 0.3 M NaOH hydroalcoholic solution (70 vol% H2 O, 30 vol% CH3 OH) + 0.1 M o -AP Potentiodynamic cycling [22 ] Glassy carbon electrode or on a glass plate covered with semiconducting indium thin oxide 1 M phosphate buffer pH 5.55 solution containing 25 μ g/mL of laccase and 10 mM o -AP Potentiodynamic cycling (−0.1 V and 0.9 V versus Ag/AgCl) [23 ]