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电催化析氧反应 （OER） 是多种能源技术的关键，但活性较低。利用晶格氧活化机制 （LOM） 是提高其活性的一种策略。然而，这种方法面临着重大的热力学挑战，需要在不影响其稳定性的情况下对金属离子进行高价氧化。我们揭示了高熵合金 （HEAs） 可以通过协同多径电子转移有效地激活 LOM。具体来说，这种电子转移增强了镍的氧化，并辅以较弱的 Co-O 键的整合，从而在 Ni-Co 双位点实现有效的 LOM。这些见解允许设计出具有改进活性的 NiFeCoCrW_0.2 HEA，在 10 mA cm-2 的电流密度下实现 220 mV 的过电位^-2。它还表现出良好的稳定性，在 100 mA cm-2 电流密度下，在 90 天内保持电位变化小于 5%。^-2本研究阐明了在 HEA 中赋予高活性并有助于高性能 OER 电催化剂发展的协同效应。

The electrocatalytic oxygen evolution reaction (OER) is critical to various energy technologies but suffers from low activity. Employing the lattice oxygen activation mechanism (LOM) is a strategy to enhance its activity. However, this approach faces significant thermodynamic challenges, requiring the high-valence oxidation of metal ions without compromising their stability. We reveal that high-entropy alloys (HEAs) can effectively activate LOM through synergistic multi-path electron transfer. Specifically, this electron transfer enhances the oxidation of nickel, complemented by the integration of weaker Co-O bonds, enabling effective LOM at Ni-Co dual sites. These insights allow the design of a NiFeCoCrW₀.₂ HEA with improved activity, achieving an overpotential of 220 mV at a current density of 10 mA cm⁻². It also exhibits excellent stability, maintaining a potential change of less than 5% over 90 days at a current density of 100 mA cm⁻². This study elucidates the synergistic effects that confer high activity in HEAs and contribute to the development of high-performance OER electrocatalysts.