Hydrazine-reduction of graphite- and graphene oxide
β Scribed by Sungjin Park; Jinho An; Jeffrey R. Potts; Aruna Velamakanni; Shanthi Murali; Rodney S. Ruoff
- Publisher
- Elsevier Science
- Year
- 2011
- Tongue
- English
- Weight
- 424 KB
- Volume
- 49
- Category
- Article
- ISSN
- 0008-6223
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β¦ Synopsis
We prepared hydrazine-reduced materials from both graphite oxide (GO) particles, which were not exfoliated, and completely exfoliated individual graphene oxide platelets, and then analyzed their chemical and structural properties by elemental analysis, XPS, TGA, XRD, and SEM. Both reduced materials showed distinctly different chemical and structural properties from one another. While hydrazine reduction of graphene oxide platelets produced agglomerates of exfoliated platelets, the reduction of GO particles produced particles that were not exfoliated. The degree of chemical reduction of reduced GO particles was lower than that of reduced graphene oxide and the BET surface area of reduced GO was much lower than that of reduced graphene oxide.
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## Abstract Exfoliation of expanded GO represents an attractive route to functionalized graphenes as versatile 2D carbon nanomaterials and components of a wide variety of polymer nanocomposites. Thermally reduced graphite oxides (TrGO) with specific surface areas of 600 to 950 m^2^βΒ·βg^β1^ were obt