玻碳电极上Ru(bpy)_3^(2+)的吸附及其电致化学发光的研究

Study of Adsorbed Ru(bpy)_3^(2+) on Glassy Carbon Electrode and Its Electrochemiluminescence

通过电化学循环伏安法和电致化学发光方法,研究了Ru(bpy)32+在玻碳电极上的吸附,研究结果表明,2Ru(bpy)3+的浓度和与玻碳材料接触的时间,直接影响了Ru(bpy)32+在玻碳上的吸附.还考察了吸附的Ru(bpy)32+在玻碳电极上被氧化后脱附的情况.

The adsorption of Ru（bpy）3^2＋ on a glass carbon electrode has been investigated by cyclic voltammetry （CV） and electrochemiluminescence （ECL）. Experimental results show that the adsorption of Ru（bpy）3^2＋ on the surface of glass carbon electrode was obviously affected by the concentration of Ru（bpy）3^2＋ and immersion time. The luminescent intensity decreases in the repetitive CV scan caused by the divorce of the oxidation product, Ru（bpy）3^2＋, which made a great intensity change in the initiatory of ECL measurement.