摘要： 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 2wt%V2O5 significantly improves electrode activity and accordingly reduces electrode polarization resistance from 2.6Ω•cm2 for LSCM to 1.2ΩCm2 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 1.2-2.0V at 800°C for direct carbon dioxide electrolysis, respectively. 出版者： Elsevier Ltd 出版日期： 2016-09-10 出處： Electrochimica acta, 2016-09, Vol.212, p.32-40 版權： 2016 Elsevier Ltd 識別號： ISSN: 0013-4686 識別號： EISSN: 1873-3859 識別號： DOI: 10.1016/j.electacta.2016.06.137
