NBEXP0102802

NBEXP0102802 — Characterisation of graphene oxide produced during NBEXP...

=Objective= To determine average flake size, height, degree of oxidation,

Method TEM, AFM, SEM & Raman spectroscopy shall be used to characterise the graphene oxide.

Procedure

TEM analysis Sample preparation: 1. 0.1005g of GO was added to a 100ml volumetric flask to make up 1mg/ml solution 2. Filled volumetric flask with ethanol from wash bottle 3. Sonicated in low-power bath for 30 min.

=Results=

TEM
[|NBSAM0102802_CM200_01.jpg] [|NBSAM0102802_CM200_02.jpg] [|NBSAM0102802_CM200_03.jpg] [|NBSAM0102802_CM200_04_SAED2495.jpg]

Discussion

Conclusion

=Log=

2009-09-10
11:54 Made up 1mg/ml GO (in ethanol) solution for TEM. Added 0.1005g GO to 100ml volumetric flask & filled with ethanol from wash bottle. Sonicated for ~30min in low-power bath 14:00 Prepared TEM samples. Shook up GO solution & pippetted 2 drops each onto 4 carbon TEM grids. 14:10 Begain TEM imaging. Progress was slow — took only 4 images and 1 SAED image.