Relevance of C/O ratios in the gas-phase synthesis of freestanding few-layer graphene
In microwave-plasma synthesis of few-layer graphene from hydrocarbon precursors, the carbon-to-oxygen and the carbon-to-hydrogen ratios are known to influence the product ratio of graphene to amorphous soot-like particles.While the role of oxygenated hydrocarbons and water as oxygen-supplying species has been studied before, in this paper, we compa