Perovskite LSCM impregnated with vanadium pentoxide for high temperature carbon dioxide electrolysis
Perovskite La0.75Sr0.25Cr0.5Mn0.5O3-δ(LSCM)has been used as a typical cathode for CO2 electrolysis in oxide-ion conducting solid oxide electrolyzers; however,the limited electrocatalytic activity still restricts electrode kinetic process.In this work,catalytic-active V2O5 nanocatalyst is impregnated in LSCM cathode to enhance electrocatalytic performance.Electrochemical measurements show that the loading of 2 wt%V2O5 significantly improves electrode activity and accordingly reduces electrode polarization resistance from 2.6 Ω·cm2 for LSCM to 1.2 Ω·cm2 for V2O5-LSCM in pure hydrogen.The current densities and Faradic efficiencies with V2O5-LSCM electrode are remarkably enhanced by 30%and 40%in contrast to bare LSCM electrode in the voltage region of 1.2-2.0 V at 800oC for direct carbon dioxide electrolysis,respectively.
LSCM V2O5 solid oxide electrolyzer carbon dioxide electrolysis
Lingting Ye Kui Xie
Key Lab of Design & Assembly of Functional Nanostructure,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou,Fujian 350002,China
国内会议
上海
英文
1-12
2016-11-04（万方平台首次上网日期，不代表论文的发表时间）