碳纸负载铅电极的制备及其催化顺丁烯二酸电还原合成丁二酸  

Preparation of carbon paper supported lead electrode and its application in catalytic electroreduction of maleic acid to succinic acid

作　　者：程宇玲 刘有智[1] 李亚[1] 王斌 焦纬洲[1] 高璟[1] 张栋铭 CHENG Yu-ling;LIU You-zhi;LI Ya;WANG Bin;JIAO Wei-zhou;GAO Jing;ZHANG Dong-ming(Shanxi Provincial Key Laboratory of Higee-Oriented Chemical Engineering,North University of China,Taiyuan 030051,China)

机构地区：[1]中北大学超重力化工过程山西省重点实验室,山西太原030051

出　　处：《现代化工》2022年第5期87-91,96,共6页Modern Chemical Industry

基　　金：国家自然科学基金(21703208);山西省自然科学基金(201701D221047,201901D111173);山西省高等学校科技创新项目(201802077)。

摘　　要：通过一步电沉积法制备CP@Pb电极,并将其用于催化顺丁烯二酸(C_(4)H_(4)O_(4))电还原反应合成丁二酸(C_(4)H_(6)O_(4))。利用SEM、TEM、XRD等手段对CP@Pb电极表面结构、物相组成等进行表征,通过CV及CP等方法研究CP@Pb电极在酸性环境中对C_(4)H_(4)O_(4)的电还原催化行为。结果表明,CP@Pb电极对C_(4)H_(4)O_(4)电还原具有良好的催化性能;反应温度为318.15 K时,在0.25 mol/L H_(2)SO_(4)+0.30 mol/L C_(4)H_(4)O_(4)中还原电流密度达到191.3 mA/cm^(2)(-1 V);当还原电流密度为120 mA/cm^(2)时,合成丁二酸的纯度为96%。CP@Pb electrode is prepared through a one-step electrodeposition method and used to catalyze the electroreduction reaction of maleic acid(C_(4)H_(4)O_(4))to synthesize succinic acid(C_(4)H_(6)O_(4)).The surface structure and phase composition of the as-prepared CP@Pb electrode are analyzed by scanning electron microscope(SEM),transmission electron microscope(TEM)and X-Ray diffractometer(XRD).The cyclic voltammetry(CV)and chronopotentiometry(CP)are employed to study the electroreduction catalytic behavior of C_(4)H_(4)O_(4) on CP@Pb in an acidic environment.The results show that the CP@Pb electrode has good catalytic performance for the electroreduction of C_(4)H_(4)O_(4).The reduction current density of CP@Pb in 0.25 mol·L^(-1) H_(2)SO_(4)+0.30 mol·L^(-1) C_(4)H_(4)O_(4) reaches 191.3 mA·cm^(-2) at a reaction temperature of 318.15 K.The synthesized C_(4)H_(6)O_(4) has a purity of 96%when the reduction current density is 120 mA·cm^(-2).

关 键 词：碳纸 铅电极 顺丁烯二酸 电还原 丁二酸 

分 类 号：TQ152[化学工程—电化学工业]