Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas (UPV-CSIC), Av. de los Naranjos s/n, 46022 Valencia, Spain.
Chem Commun (Camb). 2019 Jan 31;55(11):1607-1610. doi: 10.1039/c8cc07185c.
In this work, we will report the generation of Au clusters in a purely siliceous MCM-22 zeolite. The catalytic properties of these Au clusters have been tested for the selective oxidation of cyclohexane to cyclohexanol and cyclohexanone (KA-oil). The Au clusters encapsulated in the MCM-22 zeolite are highly active and selective for the oxidation of cyclohexane to KA-oil, which is superior to Au nanoparticles on the same support. These results suggest that Au clusters are highly active for the activation of oxygen to produce radical species.
在这项工作中，我们将报告在纯硅 MCM-22 沸石中生成 Au 团簇。这些 Au 团簇的催化性能已被用于测试环己烷选择性氧化为环己醇和环己酮（KA-油）。封装在 MCM-22 沸石中的 Au 团簇对环己烷氧化为 KA-油具有很高的活性和选择性，优于相同载体上的 Au 纳米颗粒。这些结果表明，Au 团簇对氧的活化具有很高的活性，能产生自由基。
