Cost‐effective and efficient oxygen‐evolving electrocatalysts are urgently required for energy storage and conversion technologies. In this work, an amorphous trimetallic boride nanocatalyst (Fe–Co–2.3Ni–B) prepared by a simple approach is reported as a highly efficient oxygen evolution reaction electrocatalyst. It exhibits an overpotential (η) of 274 mV to deliver a geometric current density (j_geo) of 10 mA cm⁻², a small Tafel slope of 38 mV dec⁻¹, and excellent long‐term durability at a mass loading of 0.3 mg cm⁻². The impressive electrocatalytic performance originates from the unique amorphous multimetal–metalloid complex nanostructure. From application's point of view, this work holds great promise as this process is simple and allows for large‐scale production of cheap, yet efficient, material.

中文翻译：

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基于非晶态金属硼化物的高效且富地球的富氧电催化剂

储能和转化技术迫切需要经济高效的放氧电催化剂。在这项工作中，据报道，通过一种简单的方法制备的非晶态三金属硼化物纳米催化剂（Fe-Co-2.3Ni-B）是一种高效的析氧反应电催化剂。它具有274 mV的过电势（η），可提供10 mA cm ^-2的几何电流密度（j _geo），38 mV dec ^-1的小Tafel斜率以及在质量负载为0.3时出色的长期耐久性毫克厘米^-2。令人印象深刻的电催化性能源自独特的非晶多金属-准金属络合物纳米结构。从应用程序的角度来看，这项工作具有广阔的前景，因为该过程很简单，并且可以大规模生产廉价但高效的材料。