Structures of Graphene/Cobalt Interfaces in Cobalt-Encapsulated Carbon Nanocapsules

[摘要] Carbon nanocapsules (CNCs) encapsulating cobalt (Co) nanoparticles with a face-centered-cubic structure were synthesized by a gas-evaporation method and wereobserved by high-resolution transmission electron microscopy. The Co nanoparticles revealedpolyhedral shapes; they were truncated by low-index facets. The surfaces of Co nanoparticleswere surrounded by graphene layers. The atomic configuration and interlayer spacing at thegraphene/cobalt interfaces were investigated.

[学科分类] 材料工程