Abstract
Nanostructured graphite flakes supported by SiC particles were prepared through a simple one-step pyrolysis of a polymer precursor. Scanning electron microscopy reveals that this nanostructured composite is composed of SiC nanoparticles with the size of ∼150nm, which are surrounded with many randomly distributed nanoscale graphite flakes. The graphite flakes distribute randomly and each graphite flake contains ∼10 layers of monolayer graphene. The SiC nanoparticles were synthesized by pyrolysis of polycarbosilane in a chemical vapor deposition (CVD) reactor and were then etched at high temperature to form graphene terraces on their surfaces, which were subsequently grown to form nanostuctured graphite flakes by a CVD process.
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