几种金属单质及其合金修饰电极电解合成L-半胱氨酸的研究

用几种氢过电位较高的金属Ｓｎ、Ｂｉ、ＮｉＺｎ以及Ｃｕ修饰铅电极，用于电解合成Ｌ－半胱氨酸的反应，首先筛选出性能较好的Ｓｎ、Ｎｉ、Ｚｎ电极，然后对该三种金属的合金进行研究，筛选出性能优越的（Ｎｉ－Ｓｎ）／Ｐｂ电极，电极活性大为提高，反应同期转化率明显提高。

Electro Synthesis of L Cysteine with Lead Electrode Modified with Various Metals and Alloys

Several metals having high hydrogen overoptential, such as Sn、Bi、Ni、Zn and Cu, were used to modify Pb electrode, and the modified electrodes were used in the electrosynthesis of L cysteine. First of all the electrdes modified with Sn、Ni and Zn with better performance were selected, then the alloy modified electrodes of these three kinds of metals were studied. It was found that electrode modified with Ni Sn had the best performance, the activity of electrode was greatly enhanced, the conversion increased obviously.