✦ LIBER ✦

Highly crystalline graphene oxide nano-platelets produced from helical-ribbon carbon nanofibers

✍ Scribed by H. Varela-Rizo; I. Rodriguez-Pastor; C. Merino; I. Martin-Gullon

Publisher: Elsevier Science
Year: 2010
Tongue: English
Weight: 491 KB
Volume: 48
Category: Article
ISSN: 0008-6223
DOI: 10.1016/j.carbon.2010.05.033

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✦ Synopsis

Graphene oxide nano-platelets were produced from helical-ribbon carbon nanofibers by oxidation with KMnO 4 /H 2 SO 4 and further exfoliation by ultrasonication. The KMnO 4 to carbon nanofiber ratio is 1:1. TEM and AFM were used to characterize the samples. TEM shows individual nanocrystals with straight edges and SAED yields a hexagonal spot pattern arrangement, attributed to graphene layers. The thickness of the nanocrystals, measured by AFM, is approximately 1.7 nm, which corresponds to a single layer of hydrated graphene oxide.