一种钌Ⅱ聚吡啶化合物的电化学行为及其对亚硝酸根的催化作用

The Electrochemical behavior of a Ruthenium (Ⅱ) Polypyrindine Complex and Its Electrocatalyis of Nitrite

讨论了钌 聚吡啶化合物 [Ru(bipy) 2 dppz]2 +(bipy =2 ,2 联吡啶 ;dppz =吡啶并 [3,2 a :2′ ,3′ c]吩嗪 )的电化学行为。在盐酸溶液中 ,化合物在 - 0 .11V和 - 0 .0 8V (vs.SCE)出现一对峰 ,它在玻碳电极和碳糊电极上均表现出吸附特性。在玻碳电极上的最大吸附量Γmax为 2 .37× 10 - 1 1 mol cm2 ,吸附系数 β0 为 4.89× 10 5L mol,在电极上的吸附行为符合Langmuir吸附等温式。实验中发现该化合物能对亚硝酸根的还原起催化作用。

The electrochemical behavior of [Ru(bipy) 2dppz] 2+ was studied. In hydrochloric acid solution, scanning from 0.5 V to -0.5 V, a couple of redox peaks appeared. The potentials of the peaks were at -0.11 V and -0.08 V(vs.SCE), respectively. It also appeared the adsorptive characteristic on the glassy carbon electrode(GCE) and carbon paste electrode(CPE). For GCE, the maximum adsorptive quantities was 2.37×10 -11 mol/cm 2 and the adsorptive coefficient was 4.89×10 5 L/mol, its adsorption isotherm obeyed Langmuir isotherm. In this solution, it can also electrocatalyze the reduction of nitrite.