Liping Huang, Bin Wu, Jianyi Chen, Yunzhou Xue, Dechao Geng, Yunlong Guo, Gui Yu and Yunqi Liu Gram-Scale Synthesis of Graphene Sheets by a Catalytic Arc-Discharge Method Small 9
Flake graphite is used as carbon source and ZnO or ZnS as catalyst in the synthesis of high-quality graphene sheets. A catalytic growth mechanism for cathode-part graphene synthesis in the arc-discharge apparatus and an exfoliation mechanism for wall-part graphene synthesis are introduced. N-doped cathode-part graphene and undoped wall-part graphene are formed simultaneously.
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