CuNi binary alloy catalyst for growth of nitrogen‐doped graphene by low pressure chemical vapor deposition

Abstract

The CuNi binary alloy can be significant as a catalyst for nitrogen‐doped (N‐doped) graphene growth considering controllable solubility of both carbon and nitrogen atoms. Here, we report for the first time the possibility of synthesizing substitutional N‐doped bilayer graphene on the binary alloy catalyst. Raman spectroscopy, atomic force microscopy and transmission electron microscopy analysis confirm the growth of bilayer and few‐layer graphene domains. X‐ray photoelectron spectroscopy analysis shows the presence of around 5.8 at% of nitrogen. Our finding shows that large N‐doped bilayer graphene domains can be synthesized on the CuNi binary alloy. magnified imageSynthesis of substitutional N‐doped bilayer graphene domains on the CuNi binary alloy catalyst. (© 2016 WILEY‐VCH Verlag GmbH &Co. KGaA, Weinheim)