Graphite oxide exfoliation

Wang, H., Kakade, B.A., Tamaki, T, and Yamaguchi, T. (2014) Synthesis of 3D graphite oxide-exfoliated carbon nanotube carbon composite and its application as catalyst support for fuel cells. / Power Sources, 260, 338 - 348. doi 10.1016/j.jpowsour.2014.03.014... 

Fig. 2.1 Top-down synthesis methods, (a) Micromechanical cleavage (b) ion intercalation (c) graphite oxide (d) liquid-phase exfoliation.

S. Stankovich, D.A. Dikin, R.D. Piner, K. a. Kohlhaas, A. Kleinhammes, Y. Jia, et al., Synthesis of graphene-based nanosheets via chemical reduction of exfoliated graphite oxide, Carbon,... 

V. Eswaraiah, S.S. Jyothirmayee Aravind, S. Ramaprabhu, Top down method for synthesis of highly conducting graphene by exfoliation of graphite oxide using focused solar radiation, Journal of Materials Chemistry, 21 (2011) 6800. 

S. Stankovich, R.D. Piner, X. Chen, N. Wu, S.T. Nguyen, R.S. Ruoff, Stable aqueous dispersions of graphitic nanoplatelets via the reduction of exfoliated graphite oxide in the presence of poly(sodium 4-styrenesulfonate), Journal of Materials Chemistry, 16 (2006) 155. 

Ultrasonic exfoliation of graphite oxide and subsequent chemical reduction has been used to prepare reduced graphene oxide (rGO) [17]. This is a viable method for... 

Graphene has been prepared by different methods pyrolysis of camphor under reducing conditions (CG), exfoliation of graphitic oxide (EG), conversion of nanodiamond (DG) and arc evaporation of SiC (SG). The samples were examined by X-ray diffraction (XRD), transmission electron microscopy, atomic force microscopy, Raman spectroscopy and magnetic measurements. Raman spectroscopy shows EG and DG to exhibit smaller in-plane crystallite sizes, but in combination with XRD results EG comes out to be better. The CG, EG and DG samples prepared by us have BET surface areas of 46,... 

Graphene was prepared by four different methods, namely the reductive pyrolysis of camphor (CG), exfoliation of graphitic oxide (EG),4 conversion of nanodiamond (DG)5 and arc evaporation of SiC (SG).6 In the first method, to prepare CG, camphor was pyrolysed over nickel particles under a reducing atmosphere. The reaction was carried out in a two-stage furnace and camphor was slowly sublimed (170 °C) by heating from the first furnace to the second furnace held at 770 °C where the... 

The polymerization starts immediately with the addition of aqueous phase to the organic phase at room temperature. The interfacial polymerization efficiently exfoliates the multilayer stacks of graphite oxide into individual sheets and thus significantly improves the specific surface area. 

Graphite oxide (GO)/ordered PANI composites have been prepared through in-situ polymerization of aniline in the presence of GO [12]. Structural analyses show that the PANI grows along the surface of exfoliated GO as a template to form a more ordered structure with high crystallinity during polymerization. The schematic illustration is shown in Figure 6.5. 

---