Synthesis of carbon nanobelts using a colloidal suspension of Co–Al layered double hydroxide nanosheets

A solvothermal method was developed to synthesize carbon nanobelts using a colloidal suspension of Co–Al layered double hydroxide nanosheets. The product is composed of abundant belt-like bundles with a width of 30–100 nm and a length of up to 1 μm. X-ray diffraction patterns show only one sharp reflection at the 2θ value of 26.9°. A control experiment shows that the dodecylsulfate anion is helpful for the formation of well-defined carbon nanobelts.