State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, the Chinese Academy of Sciences, Dalian, PR China.
Phys Chem Chem Phys. 2011 Oct 6;13(37):16655-60. doi: 10.1039/c1cp21843c. Epub 2011 Aug 18.
Intercalation of Pb at graphene/Ru(0001) interfaces has been dynamically observed using in situ low energy electron microscopy and photoemission electron microscopy. A comparative study of Pb intercalation on the submonolayer and complete monolayer graphene surfaces suggest that the Pb intercalation happens through the open edges of graphene islands, starting at around 150 °C. Spatially-resolved low energy electron diffraction measurements reveal that the Pb-intercalated graphene overlayers are quasi-free-standing. The intercalated graphene sheets show lower reactivity to oxidation in O(2).
使用原位低能电子显微镜和光电子发射显微镜动态观察了 Pb 在石墨烯/Ru(0001)界面的插层。对亚单层和完整单层石墨烯表面上 Pb 插层的比较研究表明，Pb 插层是通过石墨烯岛的开放边缘进行的，起始温度约为 150°C。空间分辨低能电子衍射测量表明，Pb 插层石墨烯覆盖层是准独立的。在 O(2)中，插层石墨烯片表现出较低的氧化反应性。
