Graphene synthesis using alcohol precursors
نویسندگان
چکیده
The most popular alternative route saw the light in 2009 when the chemical vapor deposition (CVD) synthesis of graphene was reported using polycrystalline nickel as catalyst and methane as carbon source at low pressures [1-2]. Later that year the growth using commercial Cu foils was reported [3]. The synthesis technique relies on the decomposition of methane at ~1000°C at low pressure and its deposition on the metal catalysts. While on Ni the solubility of C is high, the growth mechanism is through the segregation and precipitation of carbon once the Ni is cooled down; in contrast, Cu has a low C solubility and the growth is mediated by surface adsorption [4].
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