The construction of Cu–In bi-component catalysts is an effective strategy to enhance the electrocatalytic properties towards the CO₂ reduction reaction (CO₂RR). However, realizing the co-promotion of In and heteroatom P on the electrocatalytic performance is still a challenge due to the poor selectivity of metal phosphides. Herein, a novel bi-component catalyst (CuO–In(PO₃)₃/C) was successfully synthesized via a facile one-pot reaction to realize the integration of Cu, In, and P species for the enhancement of electrocatalysis. In particular, the as-obtained nanorod-like Cu–In(PO₃)₃/C exhibits superior electrocatalysis towards the CO₂RR, with the highest Faraday efficiency of CO (FE_CO) of 88.5% at −0.586 V. Furthermore, Cu–In(PO₃)₃/C shows better activity, selectivity, and stability in the CO₂RR; in particular, the total current density can reach 178.09 mA cm⁻² at −0.886 V in 2.0 M KOH solution when a flow cell is employed. This work provides a reliable method for simplifying the synthesis of novel Cu-based catalysts and exploits the application of heteroatom P in the field of efficient CO₂RR.

中文翻译：

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In(PO3)3对CuO-In(PO3)3/C高催化CO2还原反应活性的促进作用


Cu-In双组分催化剂的构建是增强CO ₂ 还原反应（CO ₂ RR）电催化性能的有效策略。然而，由于金属磷化物的选择性较差，实现In和杂原子P对电催化性能的共同促进仍然是一个挑战。在此，通过简单的一锅反应成功合成了一种新型双组分催化剂（CuO–In(PO ₃ ) ₃ /C），实现了 Cu、In 的集成。和 P 物种用于增强电催化作用。特别是，所获得的纳米棒状 Cu–In(PO ₃ ) ₃ /C 对 CO ₂ RR 表现出优异的电催化作用，具有最高的催化效率CO 的法拉第效率 (FE _CO ) 在 -0.586 V 时为 88.5%。此外，Cu–In(PO ₃ ) ₃ /C 显示出更好的活性， CO ₂ RR 的选择性和稳定性；特别是，当使用流通池时，在-0.886 V下，在2.0 M KOH溶液中，总电流密度可以达到178.09 mA cm ⁻² 。这项工作为简化新型铜基催化剂的合成提供了可靠的方法，并探索了杂原子P在高效CO ₂ RR领域的应用。