High efficient and low-cost electrocatalysts for the oxygen evolution reaction (OER) are essential components of renewable energy technologies. However, the high onset potential and limited active sites restrict the catalytic activity of current electrocatalysts. Therefore, we are motivated by the development of cheap and efficient catalytic electrodes to promote the sluggish water-splitting systems associated with the large-scale application of clean and renewable energy technologies. Herein, a novel, simple, and efficient routine is presented by noble metal particles embedded within mesoporous metal oxide materials as high-efficiency anode catalysts for OER. Highly ordered mesoporous Co₃O₄ was prepared by a nanocasting method using the silica KIT-6 as hard template, showing an enhanced electrochemical performance. Then, M - Co₃O₄ (M = Pt, Pd, Au) nanomaterials were prepared by a simple but novel chemical reduction method. They show the high surface area of 112.3, 81.0 and 73.6 m² g⁻¹, which can provide more active surface area exposure leads to shorter paths of charges from electrolyte to electrode surface. Moreover, a three-dimensional highly ordered mesoporous structure can facilitate diffusion and penetration of electrolyte and oxygen, and can also keep catalyst nanoparticles in a well-dispersed condition with more active sites. Electrochemical measurements revealed that 20, 50, 25 wt% are the best weight contents for M (M = Pt, Pd, Au) in the Co₃O₄ with highest electrochemical activity (0.410, 0.415 and 0.422 V vs. SCE) and j_0.7V reaching a maximum value. M-Co₃O₄(M = Pt, Pd, Au) materials exhibit superior activities and excellent long-duration stability in alkaline attributed to accelerating the formation of Co(IV) cations after being introduced M(M = Pt, Pd, Au) nanoparticles within mesoporous Co₃O₄. This kind of noble metal embedded within mesoporous oxide catalysts will hold a large potential as a highly promising electrocatalyst in the future.

用于氧气析出反应（OER）的高效，低成本的电催化剂是可再生能源技术的重要组成部分。然而，高起始电位和有限的活性位点限制了当前电催化剂的催化活性。因此，我们受到廉价和高效催化电极的开发的推动，以促进与清洁和可再生能源技术的大规模应用相关的缓慢的水分解系统。本文中，通过嵌入介孔金属氧化物材料中的贵金属颗粒作为用于OER的高效阳极催化剂，提出了新颖，简单且有效的程序。高度有序的中孔Co ₃ O ₄通过使用二氧化硅KIT-6作为硬模板的纳米浇铸法制备的Pb / Al2O3，显示出增强的电化学性能。然后，通过一种简单但新颖的化学还原方法制备了M-Co ₃ O ₄（M = Pt，Pd，Au）纳米材料。它们显示出112.3、81.0和73.6 m ²  g ^-1的高表面积可以提供更多有效表面积的曝光，导致电荷从电解质到电极表面的路径更短。而且，三维高度有序的介孔结构可以促进电解质和氧气的扩散和渗透，并且还可以将催化剂纳米颗粒保持在具有更多活性位点的良好分散状态下。电化学测量结果表明，20，50，25％（重量）是最好的重量含量为在M（M =铂，钯，金）联合₃ ö ₄具有最高的电化学活性（0.410，0.415和0.422 V，相对于SCE）和Ĵ _0.7V达到最大值。钴₃ O ₄（M = Pt，Pd，Au）材料在碱中表现出优异的活性和出色的长期稳定性，这归因于在介孔Co ₃内引入M（M = Pt，Pd，Au）纳米粒子后加速了Co（IV）阳离子的形成O ₄。嵌入中孔氧化物催化剂中的这种贵金属在未来将具有巨大的潜力，作为一种高度有前途的电催化剂。