TY - JOUR
T1 - Adsorption and desorption characteristics of 3-dimensional networks of fused graphene
AU - Choucair, Mohammad
AU - Tse, Nicholas Man Kei
AU - Hill, Matthew Roland
AU - Stride, John Arron
PY - 2012
Y1 - 2012
N2 - e we explore the exceptional structural characteristics of a set of graphene-related materials prepared by a wet chemical approach. We present a comprehensive study of the effects of morphology, sonication, temperature, probe species, and stacking behaviour on the measurement of graphene surface area. Nitrogen gas was used in the solid state gas adsorption measurements and methylene blue dye for adsorption measurements on aqueous dispersions of graphene. The surface area values obtained are among the highest reported for synthetic graphenes: 1700 m(2) g(-1) in aqueous dispersions and 612 m(2) g(-1) in the solid state. Microscopy revealed the graphene used in the study was present in large part as free sheets and electron diffraction confirmed the successful synthesis of high quality graphene with a regular C-C bond length of 1.41 +/- 0.02 angstrom.
AB - e we explore the exceptional structural characteristics of a set of graphene-related materials prepared by a wet chemical approach. We present a comprehensive study of the effects of morphology, sonication, temperature, probe species, and stacking behaviour on the measurement of graphene surface area. Nitrogen gas was used in the solid state gas adsorption measurements and methylene blue dye for adsorption measurements on aqueous dispersions of graphene. The surface area values obtained are among the highest reported for synthetic graphenes: 1700 m(2) g(-1) in aqueous dispersions and 612 m(2) g(-1) in the solid state. Microscopy revealed the graphene used in the study was present in large part as free sheets and electron diffraction confirmed the successful synthesis of high quality graphene with a regular C-C bond length of 1.41 +/- 0.02 angstrom.
UR - http://goo.gl/tfVsx4
U2 - 10.1016/j.susc.2011.08.016
DO - 10.1016/j.susc.2011.08.016
M3 - Article
VL - 606
SP - 34
EP - 39
JO - Surface Science
JF - Surface Science
SN - 0039-6028
IS - 1-2
ER -