Development of highly active and stable catalysts to reduce the amount of Pt or replace Pt with nonprecious transition metal in acid of oxygen reduction reaction (ORR) is still an enormous challenge. Herein, we report anchoring atomic Pt particles on Fe/N‐doped carbon material (Pt_1.1FeNC) are, for the first time, synthesized by the photodeposition method. The obtained Pt_1.1FeNC electrocatalyst exhibits superior electrocatalytic activity and good stability for four‐electron oxygen reduction reaction (ORR) in an acidic electrolyte. Pt_1.1FeNC electrocatalyst shows a half‐wave potential of 0.85 V vs. reversible hydrogen electrode (RHE) in 0.1 m HClO₄ (0.83 V of 20 wt.‐% commercial Pt/C). After 10,000 cycles after, the catalysis active only decreases 20 mV. These are mainly due to the synergistic effect between Pt and Fe.

中文翻译：

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固定在Fe-N-C材料上的原子铂可实现高效氧还原反应

在氧还原反应（ORR）的酸中开发高活性和稳定的催化剂以减少Pt的量或用非贵金属过渡金属代替Pt仍然是一个巨大的挑战。在本文中，我们报道了通过光沉积法首次合成了将原子Pt颗粒锚固在Fe / N掺杂的碳材料（Pt _1.1 FeNC）上。所得的Pt _1.1 FeNC电催化剂对酸性电解液中的四电子氧还原反应（ORR）表现出优异的电催化活性和良好的稳定性。Pt _1.1 FeNC电催化剂在0.1 m HClO _4中相对于可逆氢电极（RHE）表现出0.85 V的半波电势（0.83 V的20 wt。％商业Pt / C）。在10,000次循环之后，催化活性仅降低20mV。这些主要是由于Pt和Fe之间的协同作用。