Journal
JOURNAL OF PHYSICAL CHEMISTRY C
Volume 118, Issue 8, Pages 4460-4464Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp4109333
Keywords
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Funding
- EU-Marie Curie IIF postdoc Fellowship [299855]
- ESF-Eurographene project CONGRAN
- Flemish Science Foundation (FWO-VI)
- Collaborative program MINCyT(Argentina)-FWO(Belgium)
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The melting of fluorographene is very unusual and depends strongly on the degree of fluorination. For temperatures below 1000 K, fully fluorinated graphene (FFG) is thermomechanically more stable than graphene but at T-m approximate to 2800 K FFG transits to random coils which is almost 2 times lower than the melting temperature of graphene, i.e., 5300 K. For fluorinated graphene up to 30% ripples causes detachment of individual F-atoms around 2000 K, while for 40%-60% fluorination large defects are formed beyond 1500 K and beyond 60% of fluorination F-atoms remain bonded to graphene until melting. The results agree with recent experiments on the dependence of the reversibility of the fluorination process on the percentage of fluorination.
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