新型铅合金电极用于电解法制备臭氧的研究

探讨了Pb、Pb-0.5％Sn、Pb-0.8％Sn、Pb-1.78%Sn、Pb-1.35%Sn-0.049?、Pb-0.8％Sn-0.1％Ca-0.1％Ce铅合金电极的电化学性能、耐腐蚀性能和电解产生臭氧的产率，及铅合金电极在不同电流强度条件下电解产生臭氧的最佳条件。实验结果表明：掺杂了Sn，Ce等金属能提高铅合金电极的析氧电位和臭氧产率，其中当以PB-0.8％Sn-0.1％Ca-0.1％Ce合金电极为阳极，铂电极为阴极。饱和硫酸钾溶液为电解液，电流强度为7.5mA时，臭氧产率最高达到19％。

A Study on Lead-Alloy Electrodes Used for Electrochemical Generation of Ozone

Various electrodes made of lead and lead-alloys of Pb-0.5% Sn,Pb-0.8% Sn,Pb-1.78% Sn, Pb-1.35% Sn-0.049% Ca and Pb-0.8% Sn-0.1% Ca-0.1% Ce were studied in respect of their electrochemical and corrosion resistance properties,electrolytic generating rates of ozone,as well as optimal generation condi- tions under different electrical current intensities. The experiments suggested that mixing of tin,cerium,and etc. metals in the lead-alloy electrodes could enhance their oxygeneration potentials and ozone producing rates. When lead-alloy electrode of Pb-0.8% Sn-0.1% Ca-0.1% Ce was used as an anode,platinum electrode as a cathode,saturated potassium sulphate solution as an electrolyte,and the electric current intensity was set at 7.5 mA,the ozone generating rate could reach up to 19%.