Upgrading ethylene via renewable energy-driven electrocatalysis  

作　　者：Hanyu Wang Dunfeng Gao Guoxiong Wang Xinhe Bao 

机构地区：[1]State Key Laboratory of Catalysis,Dalian National Laboratory for Clean Energy,iChEM(Collaborative Innovation Center of Chemistry for Energy Materials),Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023,China [2]University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Science China Chemistry》2024年第12期3944-3951,共8页中国科学（化学英文版）

基　　金：supported by the National Key R&D Program of China(2022YFA1504603);the National Natural Science Foundation of China(22372171,22125205,and 22321002);the Fundamental Research Funds for the Central Universities(20720220008);the Strategic Priority Research Program of the Chinese Academy of Sciences(XDB0600200);the Liaoning Revitalization Talents Program(XLYC2203178);the Liaoning Binhai Laboratory(LBLF-2023-02);the Dalian Institute of Chemical Physics(DICP I202203);the Joint Fund of the Yulin University and the Dalian National Laboratory for Clean Energy(YLUDNL Fund 2022008);the Yanchang Petroleum Group(yc-hw-2023ky-08);the Photon Science Center for Carbon Neutrality。

摘　　要：Ethylene oxide(EO)and ethylene glycol(EG)are two important commodity chemicals and are industrially produced from petroleum-derived ethylene via thermocatalytic processes.The overoxidation of ethylene and the implementation of high temperature and pressure lead to substantial CO_(2)emission.Renewable energy-driven electrocatalysis provides a low-carbon route for upgrading ethylene under mild conditions,especially when it couples with ethylene electrosynthesis from CO_(2).In this minireview,we summarize recent achievements in the selective electrocatalytic oxidation of ethylene to EO and EG.Three main reaction routes including direct electrocatalytic oxidation with water,indirect electrocatalytic oxidation with halide mediators,and tandem electrocatalytic and thermocatalytic oxidation with hydrogen peroxide intermediate,are discussed.Some representative catalyst systems and reactor designs are exemplified.We discuss the existing scientific and technical challenges of electrocatalytic ethylene upgrading in terms of reaction rate,selectivity,and long-term stability,and propose future research directions and opportunities for pushing the process towards practical application.

关 键 词：ETHYLENE ethylene oxide ethylene glycol ELECTROCATALYSIS halide mediator selectivity tandem catalysis 

分 类 号：TQ426[化学工程] TQ221.211