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采用阳极氧化和恒电位沉积法制备Pb纳米粒子修饰的多孔Ti基TiO2(Pb/nanoTiO2)膜电极.通过对不同的电沉积电位和时间对比,找出了最佳电沉积条件.SEM分析显示该膜为均匀多孔结构,Pb纳米粒子均匀地分散在TiO2膜的表面.循环伏安和计时电流法研究了L-胱氨酸在Pb/nanoTiO2膜电极上的电催化还原活性,结果表明该电极对L-胱氨酸的还原具有高催化活性和稳定性.
Anodic oxidation and potentiostatic deposition were used to prepare Pb nanoparticle-modified porous Ti-based TiO2 (Pb / nanoTiO2) membrane electrode. The optimal electrodeposition conditions were found by comparing different electrodeposition potential and time. SEM analysis showed that the The films were uniform porous structure, and the Pb nanoparticles were uniformly dispersed on the surface of TiO2 film.The electrocatalysis activity of L-cystine on Pb / nanoTiO2 film electrode was studied by cyclic voltammetry and chronoamperometry. The results showed that the electrode pair The reduction of L-cystine has high catalytic activity and stability.