Journal
ACS NANO
Volume 3, Issue 9, Pages 2547-2556Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nn900694t
Keywords
graphene oxide; graphite oxide; ferritin; structural analysis; high resolution electron microscopy; electron diffraction; Raman spectroscopy
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Funding
- Midland Physics Alliance Graduate School
- Royal Society
- AIST
- Department of Materials, Oxford
- HRTEM
- Manchester/Lancaster Graphene Science and Innovation Award [EP/G035954/1]
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We report on the structural analysis of graphene oxide (GO) by transmission electron microscopy (TEM). Electron diffraction shows that on average the underlying carbon lattice maintains the order and lattice-spacings of graphene; a structure that is clearly resolved in 80 kV aberration-corrected atomic resolution TEM images. These results also reveal that single GO sheets are highly electron transparent and stable in the electron beam, and hence ideal support films for the study of nanoparticles and macromolecules by TEM. We demonstrate this through the structural analysis of physiological ferritin, an iron-storage protein.
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