Bearing unique redox nature and high oxygen storage capacity, ceria (CeO₂) has always been a promising CO oxidation catalyst support for gold (Au) catalysts and the like. Herein, a series of Au–CeO₂–P (P stands for pH value) samples was prepared by a co-precipitation method with the assistance of an alkaline environment and amino groups functionalized ordered mesoporous polymer (OMP-NH₂). Afterward, all samples described above were characterized that the Au–CeO₂–P catalysts are made of Au–Ce–O solid solution and Au nanoparticles (NPs) supported on CeO₂. It turns out that OMP-NH₂ is not just a simple sacrificial template for mesoporous structure, but also plays an important role as an amino source, explaining the presence of rich oxygen vacancies. Due to the concentration of oxygen vacancies in Au–Ce–O solid solution is the key factor for the oxygen mobility of CO oxidation, the catalytic results also demonstrate that the catalytic activity of Au–CeO₂–P catalysts is related to the concentration of their oxygen vacancies. Moreover, Au–CeO₂-9.6 with a highest concentration of oxygen vacancies (as high as 13.98%) in Au–CeO₂–P catalysts exhibits the best catalytic activity (complete conversion at 10 °C).

二氧化铈（CeO ₂）具有独特的氧化还原性质和高储氧能力，一直是金（Au）催化剂等有前途的CO氧化催化剂载体。_{在此，在碱性环境和氨基官能化有序介孔聚合物（OMP-NH 2} ）的帮助下，通过共沉淀法制备了一系列Au-CeO ₂ -P（P代表pH值）样品。之后，上述所有样品的特征在于，Au-CeO ₂ -P 催化剂由 Au-Ce-O 固溶体和负载在 CeO ₂上的 Au 纳米颗粒 (NPs) 制成。事实证明，OMP-NH ₂不仅是介孔结构的简单牺牲模板，而且作为氨基源也起着重要作用，解释了富氧空位的存在。由于Au-Ce-O固溶体中氧空位的浓度是CO氧化的氧迁移率的关键因素，催化结果也表明Au-CeO ₂ -P催化剂的催化活性与浓度有关。他们的氧空位。此外，Au- CeO ₂ -P 催化剂中氧空位浓度最高（高达 13.98%）的 Au -CeO ₂ -9.6表现出最好的催化活性（在 10 ℃下完全转化）。