A facile route to produce high‐performance Pt@Pd‐Fe/C oxygen reduction reaction (ORR) catalysts are explained in this article. The surface modification of partial leaching of Fe from Pd‐Fe nanoparticles followed by Pt decoration using microwave‐assisted method has largely enhanced the catalytic performances. Herein, we show that alloying Pd with Fe atoms improves the catalytic activity toward ORR by expending lattices to tune the strain and ligand effect. Further modification by partially leaching Fe atoms from the core surface can increase the active sites, the trace amounts of Pt decorated on the modified Pd‐Fe cores improved the ORR activity and stability by controlling the strain effect and ligand effect between Pt, Fe and Pd. Such a special designed structure interacts to give further improved the ORR catalytic performances which is higher than commercial Johnson Matthey Pt/C catalysts, and shed a light of mass production low‐cost catalyst.

中文翻译：

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对Pt装饰的Pd-Fe / C纳米颗粒的部分浸出作用以进行氧还原反应

本文介绍了一种生产高性能Pt @ Pd-Fe / C氧还原反应（ORR）催化剂的简便方法。从Pd-Fe纳米颗粒中部分浸出Fe的表面改性，然后使用微波辅助方法进行Pt装饰，大大提高了催化性能。在本文中，我们表明与Fe合金化Pd可以通过扩展晶格来调节应变和配体效应，从而提高对ORR的催化活性。通过从芯表面部分浸出Fe原子进行进一步修饰可以增加活性位点，修饰的Pd-Fe芯上装饰的痕量Pt通过控制Pt，Fe和Pd之间的应变效应和配体效应提高了ORR活性和稳定性。 。