In this research work the electrochemical oxidation of ortho-aminophenol (oAP) is studied using modified reduced graphene oxide/indium tin oxide (rGO/ITO) glass electrode in acetonitrile medium, tetrabutyl ammonium perchlorate (TBAP) supporting electrolyte. Cyclic voltammetry (CV) and linear-sweep voltammetry (LSV) techniques were used to study the redox behavior of oAP. The graphene oxide-initiated auto-oxidized 2-aminophenoxazine-3-one is irreversibly reduced by modified rGO/ITO glass electrode at −0.048$$V (versus Ag–AgCl electrode). LSV response shows that the cathodic peak current increases notably compared to that of bare rGO/ITO glass electrode and with the increasing concentration of oAP. The oxidized product of oAP was characterized by UV–Visible and FT-IR spectroscopy. The redox behavior of oAP of modified rGO/ITO glass electrode was compared with the electrochemical behavior of oAP at bare glassy carbon electrode.

本研究工作采用改性还原氧化石墨烯/氧化铟锡（rGO/ITO）玻璃电极，在乙腈介质、高氯酸四丁基铵（TBAP）支持电解质中，研究了邻氨基苯酚（oAP）的电化学氧化。使用循环伏安法（CV）和线性扫描伏安法（LSV）技术研究oAP的氧化还原行为。氧化石墨烯引发的自氧化2-氨基吩恶嗪-3-酮在-0.048下被改性rGO/ITO玻璃电极不可逆还原$$V（相对于 Ag-AgCl 电极）。LSV响应表明，与裸露的rGO/ITO玻璃电极相比，随着oAP浓度的增加，阴极峰值电流显着增加。oAP 的氧化产物通过紫外可见光谱和傅立叶变换红外光谱进行了表征。将改性 rGO/ITO 玻璃电极上 oAP 的氧化还原行为与裸玻碳电极上 oAP 的电化学行为进行了比较。