Oxidative transformation processes and products of para-phenylenediamine (PPD) and para-toluenediamine (PTD)—a review

Environmental Sciences Europe

Table 4 Electrochemical PPD oxidation: conditions and potentials

Oxidation and redox potentials (V)	Reaction conditions	Reference
+0.59/+0.06	CVA, GCE-electrode, CH₂Cl₂	[37]
+1.13/+0.60	CVA, GCE-electrode, CH₂Cl₂	[37]
+0.37/+0.29	CVA, GCE electrode, ACN	[37]
+0.89/+0.69	CVA, GCE electrode, ACN	[37]
pH 2: +0.43	Anodic VA, GCE electrode, pH 2–8: Britton-Robinson buffer	[38]
pH 5: +0.27
pH 8: +0.02
+0.45/+0.37	CVA, Pt electrode, 0.01 M HClO₄	[34]
+0.18	CVA, Pt electrode, 0.01 M HClO₄	[34]
+0.15/+0.20	CVA, GCE electrode, pH 7 (0.1 M phosphate buffer)	[36]
+0.10/+0.20	CVA, GC electrode modified with chitosan and MnO₂, pH 7 (0.1 M phosphate buffer)	[36]
+0.55	anodic VA, Pt electrode, ACN	[39]
−0.10/−0.08	CVA, Pt electrode, ACN	[40]
+0.38/+0.42	CVA, Pt electrode, ACN	[40]
+0.28	CVA, Au electrode, ACN	[77]
+0.83	CVA, Au electrode, ACN	[77]