Interconnected porous structures and amorphous materials are widely used in the field of electrocatalysis owing to their rich catalytic active sites. Amorphous CoP_x-CoO_y composites with interconnected porous structures were constructed through low-temperature phosphating of cobalt oxides. Moreover, low-temperature phosphating of cobalt oxide and other metal oxides with different morphologies also produced the same porous structures, further proving the generality of this method. Interestingly, the prepared CoP_x-CoO_y catalyst has excellent electrocatalytic activity for oxygen evolution reactions in alkaline media. At a current density of 10 mA cm^-2, an overpotential of 322 mV and a Tafel slope of 102 mV dec^-1 are generated. In a 1 M KOH electrolyte, its electrochemical activity is significantly better than that of unphosphorylated Co₃O₄. Under catalytic conditions, the excellent performance arises from the formation of the incorporation of phosphorus, amorphous phase and porous structures. The unique structure can provide a large number of active sites, significantly shortening the electron transfer pathway. This is the foundation of our research on the development of electrocatalysts with rich active sites. The synthesis of amorphous interconnected porous structures by introducing phosphorus will allow the application of high-efficiency catalysts in electrocatalysis and other important chemical reactions.

互连的多孔结构和无定形材料因其丰富的催化活性位而广泛用于电催化领域。通过对钴氧化物进行低温磷化，构造了具有相互连接的多孔结构的非晶态CoP _x -CoO _y复合材料。此外，氧化钴和其他形态不同的金属氧化物的低温磷化也产生了相同的多孔结构，进一步证明了该方法的通用性。有趣的是，所制备的CoP _x -CoO _y催化剂对碱性介质中的氧释放反应具有优异的电催化活性。在10 mA cm ^-2的电流密度下，过电势为322 mV，Tafel斜率为102 mV dec^-1生成。在1 M KOH电解质中，其电化学活性明显优于未磷酸化的Co ₃ O ₄。在催化条件下，优异的性能来自磷，非晶相和多孔结构的结合。独特的结构可提供大量的活性位点，大大缩短了电子转移途径。这是我们研究开发具有丰富活性位点的电催化剂的基础。通过引入磷来合成无定形的相互连接的多孔结构将允许在电催化和其他重要的化学反应中应用高效催化剂。