Because the oxygen evolution reaction (OER) greatly limits the large-scale application of electrolyzed water, it is crucial to develop and synthesize effective electrocatalysts. Herein, we report a solvent substitution strategy to prepare the iron-naphthalenedicarboxylic acid (Fe-NDC) coordination complex. Through the crystalline state transformation of Fe-NDC from the crystalline to the amorphous phase, the catalytic performance of the prepared catalyst for OER at high current density can be significantly improved under alkaline conditions. Profiting from exposed metal active sites and expanded electron transport channels, amorphous-phase Fe-NDC (AP-Fe-NDC) exhibits stable electrocatalytic activity, with 225 and 333 mV overpotentials at 10 and 500 mA/cm², respectively. Moreover, AP-Fe-NDC displays high oxygen yield and faraday efficiency. This rapid and facile strategy will be of immediate benefit to guide the preparation of other high-performance and low-cost OER catalysts.

由于析氧反应（OER）极大地限制了电解水的大规模应用，因此开发和合成有效的电催化剂至关重要。在这里，我们报告了一种溶剂替代策略，以制备铁-萘二甲酸（Fe-NDC）配合物。通过Fe-NDC从晶相到非晶相的晶态转变，可以在碱性条件下显着改善所制备的OER催化剂在高电流密度下的催化性能。受益于裸露的金属活性位点和扩展的电子传输通道，非晶相Fe-NDC（AP-Fe-NDC）表现出稳定的电催化活性，在10和500 mA / cm ^2时具有225和333 mV的超电势， 分别。而且，AP-Fe-NDC显示出高的氧气产率和法拉第效率。这种快速而简便的策略将对指导其他高性能和低成本OER催化剂的制备具有直接的好处。