丙酮-水混合溶剂中3-甲基吡啶的电氧化  

Electrooxidation of 3-Picoline in Acetone/Water Mixed Solvents

作　　者：徐玉玲[1] 曹学静[1] 张恒彬[1] 张玉敏[1] 李克昌[1] 

机构地区：[1]吉林大学化学学院,长春130021

出　　处：《高等学校化学学报》2006年第11期2144-2147,共4页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金(批准号:2037020)资助

摘　　要：在以质子交换膜为隔膜的电解槽内,通过3甲-基吡啶在PbO2电极上的电氧化研究,发现在丙酮-水混合溶剂中,与纯水作溶剂相比,不仅在相同阳极电位下电流密度大幅度上升,3甲-基吡啶电氧化生成烟酸的选择性和电流效率也明显提高.通过循环伏安、极化曲线和恒电位电解实验,研究了在丙酮-水混合溶剂中3甲-基吡啶的电氧化条件,并比较了不同条件下的选择性和电流效率.In an electrolytic cell with proton exchange membrane as the diaphragm, it was found from the electrooxidation of 3-picoline at a PbO2 electrode in acetone/water mixed solvents that the current density at the same anode potential not only increases remarkably, but also the selectivity and the current efficiency of electrooxidation from 3-picoline to nicotinic acid increase obviously compared with the pure water as the solvent. Electrooxidation conditions of 3-picoline in acetone/water mixed solvents was studied, and the selectivity and the current efficiency under various conditions were compared.

关 键 词：3-甲基吡啶 丙酮 烟酸 电氧化 

分 类 号：O646[理学—物理化学]