2014•Science and Technology Development JournalOpen access

A new method to exfoliate Graphite oxide and application for synthesis Graphene by chemical method

Thanh‐Tam Mai, Nhan Thuc Chi Ha, Huy Thuc Ha

Abstract

A new method to separate graphite oxide (GO) modified by polyethylene oxide (PEO) by the aid of ultrasonic radiation was developed. Modified GO (graphene oxide or single layer of graphite oxide) did not show not appear crystalline peak (d002) on the X-Ray and took the form of a single layer graphene oxide on the image AFM and TEM. The exfoliated graphene oxide was reduced (RGO) to graphene by the reducing agent system HI – Acetic acid (HI-AcOH). The sheet resistance of RGOHI-AcOH is about 120 Ω/sq in the form graphene paper. In addition, FTIR, UV-Vis and Raman spectra showed more clearly about characteristics of graphite oxide, graphene oxide and RGOHI-AcOH.

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Key concepts: Graphene, Graphene oxide paper, Oxide, Graphite oxide, Graphite, Materials science, Raman spectroscopy, Chemical engineering