不同阴离子的四丁基季铵盐对草酸在铅电极上电解还原的影响  

Effect of tetrabutylammonium salts on reduction of oxalic acid on lead electrode

作　　者：马祯[1] 张新胜[1] 徐苹[1] 张娴玲[1] 袁渭康[1] 

机构地区：[1]华东理工大学化学工程联合国家重点实验室,上海200237

出　　处：《化学试剂》2007年第3期169-170,共2页Chemical Reagents

基　　金：国家自然科学基金资助项目(20376020)

摘　　要：用恒电流电解法研究了四丁基氢氧化铵和不同的阴离子在草酸电解还原过程中的作用。四丁基铵阳离子可以提高电流效率,但电流效率的增加值不受浓度变化的影响。阴离子对电流效率的作用可以忽略。通过测量电极溶液界面的电容值,发现电流效率和季铵盐在电极表面的吸附相关。Constant current electrolysis was used to study the effect of tetrabutylammonium salt on the reduction of oxalic acid. The current efficiency that could be improved by using tetrabuty- lammonium cations nearly retained the same performance at different concentrations of the said reagent. The effect of anions could be neglected. It could be concluded that the reaction current efficiency was related with the surface adsorption of quaternary ammonium salt by measuring the differential capacitance at the solution interface near the electrode.

关 键 词：铅阴极 季铵盐 电流效率 电容 

分 类 号：O646[理学—物理化学]