表面活性剂对3-甲基吡啶电氧化制取烟酸的影响  

Effect of Surfactants on the Electrooxidation of 3-Picoline to Nicotinic Acid

作　　者：高阳艳[1] 李克昌[1] 顾强[1] 陈晓东[2] 张恒彬[1] 张玉敏[1] 

机构地区：[1]吉林大学化学学院,长春130012 [2]吉林大学测试科学实验中心,长春130023

出　　处：《高等学校化学学报》2009年第2期365-369,共5页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金(批准号:20803030)资助

摘　　要：研究了在阳极液中加入不同类型和不同浓度表面活性剂对3-甲基吡啶电氧化的影响.结果表明,十六烷基三甲基溴化铵、脂肪醇聚氧乙烯醚硫酸钠、十二烷基苯磺酸钠、十二烷基二甲基甜菜碱和山梨醇酐单硬脂酸酯的胶团对3-甲基吡啶电氧化有明显的促进作用.实验结果还表明,在低浓度的硫酸为支持电解质阳极液中加入表面活性剂与不加表面活性剂相比,3-甲基吡啶电氧化制取烟酸的选择性和电流效率明显提高.The effects of surfactants with different concentrations on the electrooxidation of 3-picoline were extensively investigated via the cyclic voltammetry curves. The results indicate that the current density are evidently enhanced in electrooxidation with cetyltrimethyl ammonium bromide, sodium fatty alcohol ether sulfate, sodium dodecyl benzene sulfonate, N,N-dimethyl-N-dodecyl acetate sodium and sorbitan monostearate. So, it is probably synthesized nicotinic acid from 3-picoline in the lower concentration sulfuric acid with surfactants. The product selectivity and the current efficiency under the specific conditions are enhanced than no surfactants in the electrolyte.

关 键 词：表面活性剂 循环伏安曲线 烟酸 3-甲基吡啶 电氧化 

分 类 号：O646.5[理学—物理化学]