Graphene can be used to avoid the oxidation of metallic films. This work explores the effectiveness of such stabilizing effect on Cobalt films intercalated between Graphene and Ir(111). After intercalation at 300 °C, two Co films are exposed to ambient pressure and investigated using Co-K edge X-ray Absorption Near Edge Spectroscopy. The formation of a disordered oxide phase is observed, and associated to the presence of some non-intercalated Co. Further annealing at 500 °C causes the oxide reduction to metallic Co which further intercalates below the Graphene. Once the intercalation is completed, Graphene prevents the Co from oxidation under ambient pressure conditions.

石墨烯可用于避免金属膜的氧化。这项工作探讨了这种稳定作用对嵌入在石墨烯和Ir（111）之间的钴膜的有效性。在300°C插入后，将两片Co膜暴露于环境压力下，并使用Co-K边缘X射线吸收近边缘光谱法进行研究。观察到无序氧化物相的形成，并与一些非嵌入的Co的存在有关。在500°C下进一步退火会使氧化物还原成金属Co，并进一步嵌入石墨烯下方。插层完成后，石墨烯可防止Co在环境压力条件下氧化。