Urgent!!! Preparation of graphite solution

Apr 2015
2
0
I AM HAVING PROBLEM IN PREPARATION OF GRAPHITE SOLUTION AFTER READ THE JOURNAL. CAN SOMEONE HELP ME?

THE JOURNAL EXPERIMENTAL METHODS IS WROTE IN THIS WAY:
Sodium cholate (NaC) was purchased from Sigma Aldrich and was dissolved in Millipore water at various concnetrations between 0.01 and 20mg/mL. Graphene dispersions were prepared by adding graphite at an initial concentration of 5mg/mL[/COLOR] to 400mL NaC solution in 500mL capped round-bottomed flasks. Various surfactant concentrations were explored.

I have no idea hw to prepare this solution based on this procedure. Can some one explain it to me?
 
May 2015
24
0
Houston, TX
Graphene on Silicon

If you have choice of an alternate method of generating graphene sheets, I'd suggest junking the solution method and use silicone (simple, non-stick silicon baking sheet will do). Silicon is very, very flat. If you draw graphite onto a sheet of silicon, a single sheet of graphite can be deposited on the silicon. If you have an ordinary light microscope, you can see the difference between the graphite layers and the single sheets of graphene.