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At what temperature does graphene melt? 

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Graphene prepared at high temperature (>1200 °C) is purer than that obtained at a lower temperature (800 °C).
Although the effect has previously been seen in metals and semiconductors, it is evident in graphene at much higher temperatures—including room temperature.
At high temperature we find that the presence of graphene slightly stabilizes the Cu surface and retards surface melting.
Journal ArticleDOI
Yu. D. Fomin, Vadim V. Brazhkin 
01 Feb 2020-Carbon
38 Citations
The melting temperature of graphene in argon atmosphere appears to be close to the melting temperature of graphite.
The Debye temperature for graphene and twisted bilayer graphene was calculated to be around ∼1861-1864 K. Our results suggest that the thermodynamic properties of materials such as bilayer graphene can be controlled at the atomic scale by rotation of the sp(2)-carbon planes.
The predicted thermal conductivity at room temperature exhibits important quantum effects due to the high Debye temperature of graphene.
Journal ArticleDOI
V. P. Novikov, S. A. Kirik 
12 Citations
A new method is proposed for the low-temperature production of graphene with high yield.
Our results represent a significant progress in reducing graphene synthesis temperature and understanding its mechanism.
Temperature plays a more important role in determining the fracture strength of graphene.

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