Ti/nanoTiO2-Pt阳极和Ti/nanoTiO2阴极成对电合成葡萄糖酸锌和丁二酸  

A Paired Electrosynthesis of Zinc Gluconate and Succinic acid Using Ti/nanoTiO_2-Pt Anode and Ti/nanoTiO_2 Cathode

作　　者：褚道葆[1] 张雪娇[1] 何建国[1] 侯源源[1] 肖英[1] 

机构地区：[1]安徽省功能性分子固体、分子基材料重点实验室安徽师范大学化学与材料科学学院,芜湖241000

出　　处：《化学学报》2010年第2期125-130,共6页Acta Chimica Sinica

基　　金：国家自然科学基金(No.20476001);安徽省自然科学基金(No.070414160);高校自然科学重点基金(No.KJ2007A010)资助项目

摘　　要：使用新颖的纳米结构电极成对电合成葡萄糖酸锌和丁二酸.采用溶胶-凝胶法制备Ti基纳米TiO2(Ti/nanoTiO2)电极,同时采用电沉积法制备Ti基纳米TiO2-Pt(Ti/nanoTiO2-Pt)修饰电极.通过循环伏安研究发现,Ti/nanoTiO2-Pt电极对葡萄糖氧化及Ti/nanoTiO2电极对马来酸还原均具有高催化活性.以Ti/nanoTiO2-Pt电极为阳极、Ti/nanoTiO2电极为阴极,通过正交实验得到成对电合成葡萄糖酸锌和丁二酸的优化条件为:阳极和阴极电流密度分别为1.2A·dm-2和3.0A·dm-2,阳极液为0.4mol·L-1葡萄糖+0.6mol·L-1NaBr,阴极液为0.6mol·L-1马来酸+0.2mol·L-1NaCl,温度50℃.成对电合成的总电流效率达到170%.A paired electrosynthesis of zinc gluconate and succinic acid using novel nano-electrodes was studied.A Ti/nanoTiO2 electrode and a nanoTiO2 film loaded Pt nanoparticle electrode（Ti/nanoTiO2-Pt） were prepared by a sol-gel method and an electrochemical deposition technique.The results of cyclic voltammetry showed that the Ti/nanoTiO2-Pt electrode as anode and the Ti/nanoTiO2 electrode as cathode exhibited high electrocatalytic activity for electro-oxidation of glucose and electro-reduction of maleic acid respectively.According to the orthogonal experiment,the optimum conditions obtained were as follows：anodic and cathodic current density at 1.2 and 3.0 A·dm^-2 respectively,0.4 mol·L^-1 glucose and 0.6 mol·L^-1 NaBr in anodic electrolyte,0.6 mol·L^-1 maleic acid and 0.2 mol·L^-1 NaCl in cathodal electrolyte,and the temperature at 50 ℃.Total current efficiency attained to 170%.

关 键 词：成对电合成 葡萄糖酸锌 丁二酸 Ti/nano TiO2-Pt阳极 Ti/nanoTiO2阴极 

分 类 号：O621.3[理学—有机化学]