Hydrogen energy is considered as an ideal candidate energy of traditional fossil fuels. Oxygen evolution reaction (OER) is a crucial reaction for the sustainable hydrogen generation as a half reaction of water splitting. It is important to develop efficient electrocatalysts for the OER. Herein, the porous iridium nanowires (Ir PNWs) with polyallylamine hydrochloride (PAH) as a complex‐forming agent and capping agent have been successfully synthesized through a one‐pot hydrothermal approach. Benefiting from the inherent anisotropic characteristic of one‐dimensional nanowires structure, abundant microporous channels and high atom utilization efficiency, the synthesized Ir PNWs possess very large electrochemically active surface area (118.2 m² g⁻¹), and thus exhibit superior electrocatalytic activity and stability towards the OER compared with commercial RuO₂ catalyst and other Ir nanocrystals.

中文翻译：

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具有微孔通道和优异的氧分解反应电催化活性的超细Ir纳米线

氢能被认为是传统化石燃料的理想候选能源。氧气析出反应（OER）作为水分解的一半反应，对于可持续地产生氢气至关重要。开发用于OER的高效电催化剂很重要。本文通过单锅水热法成功合成了以聚烯丙胺盐酸盐（PAH）为络合物形成剂和封端剂的多孔铱纳米线（Ir PNWs）。得益于一维纳米线结构固有的各向异性特性，丰富的微孔通道和高原子利用效率，合成的Ir PNW具有非常大的电化学活性表面积（118.2 m ²  g ^-1），因此与市售RuO ₂催化剂和其他Ir纳米晶体相比，对OER具有优越的电催化活性和稳定性。