A general method for controlling the synthesis of a class of ultrathin PtRuM–O (M = Ni, Fe, Co) NSs is reported for the first time. By optimizing the metal ratio, the Pt₇RuNi₂–O NS catalyst is found to have the highest electrocatalytic activity (mass activity, 3.57 A mg_Pt⁻¹) for the MOR among PtRuM–O NSs and PtRu–O NSs, which is 10.5 times higher than that of commercial Pt/C (0.34 A mg_Pt⁻¹). And the Pt₇RuNi₂–O NSs also have better stability and CO anti-poisoning properties in the prepared materials. In addition, the ultrathin Pt₇RuNi₂–O NS catalyst also shows the highest performance among reported Pt-based catalysts for the MOR in acidic medium.

中文翻译：

---

由超薄 PtRuM-O（M = Ni、Fe、Co）纳米片实现的高效甲醇氧化电催化剂。

首次报道了一种控制合成一类超薄 PtRuM-O (M = Ni, Fe, Co) NSs 的通用方法。通过优化金属比例，发现 Pt ₇ RuNi ₂ -O NS 催化剂对 PtRuM-O NSs 和 PtRu-O NSs 中的 MOR具有最高的电催化活性（质量活性，3.57 A mg _Pt ^-1），即比商业 Pt/C (0.34 A mg _Pt ^-1 )高 10.5 倍。并且Pt ₇ RuNi ₂ -O NSs在制备的材料中也具有更好的稳定性和CO抗中毒性能。此外，超薄 Pt ₇ RuNi ₂-O NS 催化剂在已报道的用于酸性介质中 MOR 的 Pt 基催化剂中也表现出最高的性能。