【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.更多还原

【Abstract】 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.更多还原