Controllable synthesis of novel one-dimensional carbon nanomaterials on an alkali-element-modified Cu catalyst

A series of novel one-dimensional carbon nanomaterials have been synthesized on an alkali-element-modified Cu catalyst, via a simple chemical vapour deposition method. The alkali-element doping of the Cu catalyst plays a key role in the controllable synthesis of carbon nanomaterials, signifying a novel approach to modifying the Cu catalyst. Owing to their unique morphology and fine quality, the synthesized carbon nanomaterials have fascinating potential applications in nanometre-sized electronic devices.