Electrocatalytic Synthesis of Propylene Carbonate from CO_2 and Propylene Oxide  

作　　者：ZHANG Li WANG Huan LI Rui-na CHEN Bao-li LU Jla-xing 

机构地区：[1]Shanghai Key Laboratory of Green Chemistry and Chemical Process, Department of Chemistry, East China Normal University, Shanghai 200062, P. R. China [2]Advanced Analysis and Measurement Center, Anhui University of Technology, Ma＇anshan 230042, P. R. China

出　　处：《Chemical Research in Chinese Universities》2011年第2期300-303,共4页高等学校化学研究（英文版）

基　　金：Supported by the National Natural Science Foundation of China(No.20973065);the Fund of Basic Research in Natural Science Issued by Shanghai Municipal Committee of Science; China(No.08dj1400100);the Shanghai Leading Project; China (No.B409);the Foundation of Outstanding Young Talent in University of Anhui Province; China No.2010SQRL042)

摘　　要：The electrocatalytic synthesis of propylene carbonate（PC） from CO2 and propylene oxide（PO） was studied under mild conditions（PCO2=1.01×105 Pa, t=25 ℃）. Influences of solvents, supporting electrolytes, the passed charge, the nature of electrodes and the current density（j） on the yield of PC were investigated to optimize the electrolytic conditions, with the maximal yield to be 46.2%, the selectivity of propylene carbonate is 100%. The reduction of propylene oxide in the absence and presence of CO2 was examined by cyclic voltammetry. The mechanism of the reaction initiated by the synergistic effect of halides ions of supporting electrolytes with nucleophilicity and the metal ions from scarification anode with Lewis acid acidity was proposed on the basis of our results.The electrocatalytic synthesis of propylene carbonate（PC） from CO2 and propylene oxide（PO） was studied under mild conditions（PCO2=1.01×105 Pa, t=25 ℃）. Influences of solvents, supporting electrolytes, the passed charge, the nature of electrodes and the current density（j） on the yield of PC were investigated to optimize the electrolytic conditions, with the maximal yield to be 46.2%, the selectivity of propylene carbonate is 100%. The reduction of propylene oxide in the absence and presence of CO2 was examined by cyclic voltammetry. The mechanism of the reaction initiated by the synergistic effect of halides ions of supporting electrolytes with nucleophilicity and the metal ions from scarification anode with Lewis acid acidity was proposed on the basis of our results.

关 键 词：CO2 Electrocatalytic synthesis Propylene carbonate Propylene oxide Halide ion 

分 类 号：TQ223.26[化学工程—有机化工] TQ225.61