Simultaneous growth of monolayer graphene on Ni–Cu bimetallic catalyst by atmospheric pressure CVD process - Université de Lorraine Accéder directement au contenu
Article Dans Une Revue RSC Advances Année : 2016

Simultaneous growth of monolayer graphene on Ni–Cu bimetallic catalyst by atmospheric pressure CVD process

Résumé

CVD is the most efficient way to produce wafer scale monolayer graphene. Although Ni and Cu are widely reported catalysts for monolayer graphene formation, but both Ni and Cu are requiring different extreme conditions to grow graphene in single layer. Here, we show that monolayer graphene could be grown simultaneously on polycrystalline Ni and Cu under single atmospheric pressure CVD for the first time. Our catalyst system combines carbon solubility divergence between the two catalysts to limit the exposure to the carbon source. Structure and quality of the grown graphene were characterized by HRTEM and Raman spectroscopy mapping. The growth mechanism shows that the role of grain boundaries is crucial for carbon diffusion tuning. The results show that free-standing high-quality monolayer graphene can be produced in a controlled and simple way with an affordable catalyst system.

Domaines

Chimie Matériaux
Fichier non déposé

Dates et versions

hal-02095724 , version 1 (10-04-2019)

Identifiants

Citer

Choon-Ming Seah, B. Vigolo, Siang-Piao Chai, Satoshi Ichikawa, Jérôme Gleize, et al.. Simultaneous growth of monolayer graphene on Ni–Cu bimetallic catalyst by atmospheric pressure CVD process. RSC Advances, 2016, 6 (47), pp.41447-41452. ⟨10.1039/c6ra04197c⟩. ⟨hal-02095724⟩
21 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More