Highly selective CO₂ electroreduction to CO (∼90% faradaic efficiency) was achieved on NiCu_0.25 bimetallic nanoparticle catalysts. By combining Synchrotron based X-ray absorption and in situ Raman spectroscopy studies, we found that there is a negative correlation between the Cu content in NiCu_x and CO selectivity due to redistribution of the 3d electrons.

中文翻译：

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石墨烯包裹的镍铜双金属纳米颗粒催化剂，用于将CO2电化学还原为CO。

在NiCu _0.25双金属纳米粒子催化剂上实现了高选择性的CO ₂电还原为CO（法拉第效率为90％）。通过结合基于同步加速器的X射线吸收和原位拉曼光谱研究，我们发现由于3d电子的重新分布，NiCu _x中的铜含量与CO选择性之间存在负相关关系。