In this work, we have successfully constructed a cobalt–oxo (Co^III₄O₄) cubane complex on polymeric carbon nitride (PCN) through pyridine linkage. The covalently grafted Co^III₄O₄ cubane units were uniformly distributed on the PCN surface. The product exhibited greatly enhanced photocatalytic activities for water oxidation under visible‐light irradiation. Further characterizations and spectroscopic analyses revealed that the grafted Co^III₄O₄ cubane units could effectively capture the photogenerated holes from excited PCN, lower the overpotential of oxygen evolution reaction (OER), and serve as efficient catalysts to promote the multi‐electron water oxidation process. This work provides new insight into the future development of efficient photocatalysts by grafting molecular catalysts for artificial photosynthesis.

中文翻译：

---

在高分子碳氮化物上接枝分子钴氧羰基古巴催化剂以进行高效的光催化水氧化。

在这项工作中，我们已经通过吡啶键在聚合物氮化碳（PCN）上成功构建了钴-氧（Co ^III ₄ O ₄）古巴配合物。共价接枝的Co ^III ₄ O ₄古巴单位在PCN表面均匀分布。该产品在可见光照射下对水氧化的光催化活性大大增强。进一步的表征和光谱分析表明，接枝的Co ^III ₄ O ₄古巴单位可以有效地捕获激发的PCN中的光生空穴，降低氧释放反应（OER）的过电位，并充当促进多电子水氧化过程的有效催化剂。这项工作通过接枝用于人工光合作用的分子催化剂，为高效光催化剂的未来发展提供了新的见解。