【摘要】 采用热压法制备PbO2-SPE组合电极,通过循环伏安和稳态极化曲线测量研究了该电极对3-甲基吡啶电氧化反应的活性.考察了阳极液中有、无液相支持电解质和不同阴极液情况下,电流密度与过电位和过电位与槽压的关系.初步研究了利用PbO2-SPE组合电极在无液相支持电解质的溶液中进行3-甲基吡啶电氧化制取烟酸的可行性,给出了特定条件下的选择性和电流效率.更多还原

【Abstract】 The PbO₂-SPE（Solid Polymer Electrolyte） composite electrode was prepared by hot pressed method.The electrooxidation reactions of 3-picoline at the electrode was studied with the cyclic voltammetric and steady state polarization curves.The relationships between the current density and overpotential and between the overpotential and cell voltage were examined in the different catholyte as well as in the anolytes with or without the liquid supporting electrolyte.The possibility for producing nicotinic acid from 3-picoline at the（electrode） without the supporting electrolyte in the liquid phase was explored.The selectivity and the current （efficiency） under the specific conditions were given.更多还原