循环伏安法研究活性深蓝B-2GLN的电化学性质

Cyclic voltammetric properties of reactive dark blue B-2GLN

采用循环伏安法探讨了活性深蓝B-2GLN在玻碳电极表面的电化学行为.结果表明：在0.1mol·L-1的Na2SO4底液中,B-2GLN有一个稳定的不可逆氧化峰,峰电位Ep=0.9V（vs SCE）,其电化学氧化反应受扩散控制且氧化产物具有吸附性,电子转移数为2,扩散系数D=1.264×10^-4 cm^2·s^-1;氧化峰电流ip与c（B-2GLN）在1.0×10^-5~8.0×10^-5 mol·L^-1范围内呈现良好的线性关系,相关系数r=0.998 9.

The electrochemical properties of reactive dark blue B-2GLN on glassy carbon electrode have been investigated by cyclic voltammetry. The result shows that the electrochemical oxidation of B-2GLN is irreversible which is controlled by diffusion. At 25 ℃, the number of the electrons transferred of B-2GLN in the electrochemical reaction is two and the diffusion coefficient of B-2GLN is 1.264×10^-14cm^2· s^- 1.