摘要
探讨了Pb及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下电解产生臭氧的最佳条件。结果表明:掺杂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,pH=1,电流强度为7.5 mA时,产生臭氧的最高电流效率达到19%。
Six lead based electrodes（Pb, Pb-0. 5% Sn, Pb-0. 8% Sn, Pb-1. 78% Sn, Pb-1. 35% Sn- 0.049% Ca,Pb-0.80% Sn-0.1% Ca-0. 1% Ce） were prepared,and their performance as the anode for electrochemical generation of ozone was evaluated. Sn and Ce ingredients resulted in less Pb release and a higher water oxidation over-potential which was responsible for enhanced ozone generation（higher current efficiency）. Combined with the use of a Pt cathode,in K2SO4 electrolyte, operating at a controlled current of 7. 5 mA,pH=1,and its current efficiency is up to 19%.
出处
《华东理工大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2007年第1期61-64,114,共5页
Journal of East China University of Science and Technology
基金
上海市教委青年基金(CL2004300)
上海市自然科学基金(BL200447)
关键词
铅合金
臭氧制备
电解
Pb-alloy
ozone generation
electrolysis
