Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6605739 | Electrochimica Acta | 2016 | 9 Pages |
Abstract
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 ΩCm2 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 800 °C for direct carbon dioxide electrolysis, respectively.
- cm2 for LSCM to 1.2 ΩCm2 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 800 °C for direct carbon dioxide electrolysis, respectively.
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Authors
Xiaozhen Zhang, Lingting Ye, Jianping Hu, Jie Li, Weihui Jiang, Chung-Jen Tseng, Kui Xie,