Shear stress mediated scrolling of graphene oxide
Thaar MD Alharbi, David Harvey, Ibrahim K Alsulami, Nazila Dehbari, Xiaofei Duan, Robert N Lamb, Warren D Lawrance, Colin L Raston
CARBON | PERGAMON-ELSEVIER SCIENCE LTD | Published : 2018
Graphene oxide scrolls (GOS) are fabricated in high yield from a colloidal suspension of graphene oxide (GO) sheets under shear stress in a vortex fluidic device (VFD) while irradiated with a pulsed laser operating at 1064 nm and 250 mJ. This is in the absence of any other reagents with the structure of the GOS established using powder X-ray diffraction, thermogravimetric analysis, differential scanning calorimetry, X-ray photoelectron spectroscopy, Raman spectroscopy, transmission electron microscopy, atomic force microscopy and scanning electron microscopy.
Awarded by Australian Research Council
T.M.D.A. thanks Taibah University (Ministry of Education, Saudi Arabia) for funding his scholarship. The authors thank support of this work by the Australian Research Council (DP170100450), the Government of South Australia, and thanks the Australian Microscopy & Microanalysis Research Facility (AMMRF) and the Australian National Fabrication Facility (ANFF) for accessing microscopic facilities.