Herein we report the synthesis of mesoporous cobalt oxides in pure (Co₃O₄) and alkali and alkaline earth metal doped form (Li-, Ca-, Cs-, and Na-, K-, and Mg/Co₃O₄) via the inverse micelle method. The as-prepared materials were characterized by powder X-ray diffraction (pXRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), nitrogen sorption (BET), hydrogen-temperature-programmed reduction (H₂-TPR), and X-ray photoelectron spectroscopy (XPS). Characterization results suggested that the as-synthesized materials are of amorphous and mesoporous nature. Their catalytic activity was investigated using a model reaction, namely the liquid-phase morin oxidation. Results revealed pure cobalt oxide to be the better catalyst compared to its doped counterparts. The stability of Li/Co₃O₄ material was investigated exemplarily by recycling and reusing the catalysts for as many as four catalytic cycles. Conversion of morin was complete in all runs and no significant metal leaching could be detected by the use of inductively coupled plasma mass spectrometry (ICP-MS).

本文中，我们报告了纯（Co ₃ O ₄）以及碱金属和碱土金属掺杂形式（Li-，Ca-，Cs-和Na-，K-和Mg / Co ₃ O ₄）介孔钴氧化物的合成。通过反胶束方法。所制备的材料通过粉末X射线衍射（pXRD），透射电子显微镜（TEM），扫描电子显微镜（SEM），氮吸附（BET），氢程序升温还原（H ₂）进行表征。-TPR）和X射线光电子能谱（XPS）。表征结果表明，合成后的材料具有无定形和中孔性质。使用模型反应，即液相莫林氧化，研究了它们的催化活性。结果表明，与掺杂的钴氧化物相比，纯氧化钴是更好的催化剂。通过循环和再利用多达四个催化循环的催化剂，示例性地研究了Li / Co ₃ O ₄材料的稳定性。在所有运行中，morin的转化均已完成，并且通过使用电感耦合等离子体质谱法（ICP-MS）不能检测到明显的金属浸出。