The electrochemical CO reduction reaction (CER) to methane (CH) has received great attention. Here, we proposed an efficient method to facilitate the conversion of CO-to-CH by creating a two-phase interface over urea-modified LaCuO catalyst. The most optimized one exhibits the highest selectivity (22%) for CH and the best activity (14 mA cm) and stability (5 h) at the potential of −1 V vs. reversible hydrogen electrode. The enhanced CER performance can be attributed to the establishment of interfacial effect within the two-phase, which facilitates the reduction of Cu and promotes the active sites concentration.

中文翻译：

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界面和价态的协同效应增强La2CuO4电化学CO2还原活性


CO电化学还原反应（CER）生成甲烷（CH）受到了极大的关注。在这里，我们提出了一种通过在尿素改性 LaCuO 催化剂上创建两相界面来促进 CO 转化为 CH 的有效方法。最优化的电极与可逆氢电极相比，在 -1 V 电位下表现出最高的 CH 选择性 (22%) 以及最佳活性 (14 mA cm) 和稳定性 (5 小时)。 CER性能的增强可归因于两相内界面效应的建立，这有利于Cu的还原并促进活性位点的浓度。