以糠醛为原料的成对电合成  

Paired Electrosynthesis Using Furfural as Raw Material

作　　者：刘红红[1] 刘丽超 张文礼[1] 何亚鹏[1] 黄卫民[1] 林海波[1,2] LIU Honghong;LIU Lichao;ZHANG Wenli;HE Yapeng;HUANG Weimin;LIN Haibo(College of Chemistry, Jilin University, Changchun 130012, China;Guangdong Guanghua Sci-Tech Co., Ltd., Shaatou 515061, China)

机构地区：[1]吉林大学化学学院,长春130012 [2]广东光华科技股份有限公司,汕头515061

出　　处：《高等学校化学学报》2018年第4期779-784,共6页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金(批准号:21273097;21573093);国家重点研究发展计划项目(批准号:2016YFC1102802);吉林省重大科技攻关招标项目(批准号:20130204003GX);广东省引进创新创业团队计划项目(批准号:2013C092)资助~~

摘　　要：研究了Ti/Ru-Ti-Sn,Ni,Ti/PbO_2,Pt和Ti/BDD(钛基掺硼金刚石电极)5种电极的析氧情况及对糠醛电化学氧化成糠酸的催化作用,得出氧化的最佳电极为Ni.以糠醛为原料,Ni电极为阳极,Cu电极为阴极,成对电合成糠醇和糠酸,研究了溶液p H值、电流密度、糠醛浓度、温度及电解时间对反应的影响.结果表明,溶液pH=11,阴极电流密度为2 mA/cm^2,阳极电流密度为1 mA/cm^2,糠醛浓度为0.1 mol/L,温度为25℃时,经过优化,总的电流效率最佳为130%.In order to choose the best electrode for the electrochemical oxidation of furfural to furfuryl acid,the oxygen evolution and the electrocatalysis for the oxidation of furfural of Ti/Ru-Ti-Sn,Ni,Ti/PbO2,Pt and Ti/BDD were studied. The effects of pH of the solution,current density,concentration of furfural,temperature and electrolysis time on the electrochemical reduction of furfural to furfuryl alcohol and the electrochemical oxidation of furfural to furoic acid were investigated using Ni anode. The results showed that the best current efficiency was 130% at pH = 11,cathodic current density 2 m A/cm^2,anodic current density 1 m A/cm^2,concentration of furfural 0. 1 mol/L,temperature 25 ℃,cathodic electrolysis time 4 h and anodic electrolysis time 6 h.

关 键 词：糠醛 糠酸 糠醇 成对电合成 

分 类 号：O646[理学—物理化学]