Phosphopolyoxomolybdate absorbed on lipid membranes/carbon nanotube electrode

Carbon nanotube (CNT) electrode was selected to support lipid membranes. From electrochemical impedance results, lipid membranes of didodecyldimethylammonium bromide (DDAB) were identified to be formed on CNT electrode. Phosphopolyoxomolybdate (P₂Mo₁₈) was immobilized on DDAB modified CNT electrode through electrostatic adsorption and the properties of P₂Mo₁₈ were investigated by cyclic voltammetry (CV), scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS). Additionally, CNT/DDAB/P₂Mo₁₈ electrode shows good stability in strong acidic medium (0.5 M H₂SO₄) and excellent electrocatalytic ability for the reduction of bromate and nitrite.