Enhanced CO2 Electrolysis with Metal-oxide Interface Structures  

作　　者：XU Ze-Tong XIE Kui 许泽桐;谢奎(College of Chemistry and Materials Science,Fujian Normal University,Fuzhou 350007,China;CAS Key Laboratory of Design and Assembly of Functional Nanostructures,and Fujian Provincial Key Laboratory of Nanomaterials,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou 350002,China)

机构地区：[1]College of Chemistry and Materials Science,Fujian Normal University,Fuzhou 350007,China [2]CAS Key Laboratory of Design and Assembly of Functional Nanostructures,and Fujian Provincial Key Laboratory of Nanomaterials,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou 350002,China

出　　处：《Chinese Journal of Structural Chemistry》2021年第1期31-41,1,共12页结构化学（英文）

基　　金：the funding support from the National Natural Science Foundation of China(91845202);Dalian National Laboratory for Clean Energy(DNL180404);Strategic Priority Research Program of Chinese Academy of Sciences(XDB2000000)。

摘　　要：The ever-decreasing fossil fuels and the increasing greenhouse effect have caused substantial concern.Solid oxide electrolyser cell(SOEC)with La_(0.75)Sr_(0.25)Cr_(0.5 )Mn_(0.5)O_(3-δ)(LSCM)as a cathode was used for CO_(2) electrolysis to CO.In this work,the metal-oxide interface was constructed on the LSCM framework by in-situ exsolution and impregnation,and the uniform distribution of metal nanoparticles on the LSCM framework was confirmed by spectroscopy techniques and electron microscopy techniques.The existence of three-phase boundary promoted the absorption and electrolysis of CO_(2).(La_(0.75) Sr_(0.25))0.9(Cr_(0.5 )Mn_(0.5))_(0.9)(Ni_(0.5) Cu_(0.5))_(0.1) O_(3-δ)(LSCMNC)showed the best electrolytic CO_(2) performance at 850℃and exhibited excellent electrocatalytic activity after 100 hours of long-term testing and 8 redox cycles.

关 键 词：solid oxide electrolyser cell LSCM metal nanoparticles CO_(2)electrolysis 

分 类 号：O643.36[理学—物理化学] TM911.4[理学—化学] X701[电气工程—电力电子与电力传动]