Graphene Nanowalls

Graphene oxide-based substrate: physical and surface characterization, cytocompatibility and differentiation potential of dental pulp stem cells

“…Likewise, the 0.83 ID/IG ratio is consistent with the values reported in the literature for graphene oxide [16]. The three peaks centered around 3000 cm −1 correspond to the response of the 2D (∼2700 cm −1 corresponding to the stacking) due to a D-G combination (∼2947 cm −1 , S3 mode) and 2D at 3110 cm −1 [17]. Graphene has been recognized as a hydrophobic material [2].…”

Vertically Aligned Graphene Nanosheet Arrays: Synthesis, Properties and Applications in Electrochemical Energy Conversion and Storage

“…After nucleation in a short period of ≈5 minutes, vertically aligned graphene nanosheets grow along their lateral direct almost linearly with the reaction time until saturation. [54] In addition to the influences of pressure and power as discussed above, the growth rate under the steady-state condition could also be affected by other synthesis conditions, such as substrate temperature and gas source composition. [32,51] In contrast to the conventional thermal CVD which grow graphene at a substrate temperature from 900 to 1000 °C, the utilization of plasma PECVD enabled the growth of VAGNA at relatively low temperatures (300-800 °C), due to the improved surface reaction kinetics derived from the energetic electrons and reactive carbon species in the plasma.…”

Applications of supercritical carbon dioxide in materials processing and synthesis

“…density, viscosity, diffusion coefficient) intermediate between those of liquid and gas (see Table 1). 11 Supercritical CO 2 is superior in advanced materials processing. Firstly, the solubility of a solute in supercritical CO 2 is a function of the density of supercritical CO 2 , which can be tuned by changing the pressure and temperature in the supercritical region.…”