In situ study of the effect of chemical composition on the morphology of Graphene oxide films
Graphene oxide (GO), is usually synthesized by oxidation of graphite or carbon nanofibers as an attractive route to prepare graphene based devices. However, controlling the chemical structure and deposition as thin films remains an unsolved problem. It has been shown recently [Langmuir 31, 2697 (2015)] that by using Langmuir-Blodgett technique one can control the film coverage with the percentage of CO groups attached to GO sheets. However,the microscopic mechanism of the increase in the coverage has not been understood. Therefore, the main objective of this Neutron Reflectometry study is to develop microscopic understanding of the effect of GO chemical composition on morphology, thickness and coverage of graphene oxides films on air-water and on solid substrate (Si/SiO2) interfaces. Graphene oxides selected will be obtained by graphite oxidation and using the purification procedure previously reported.
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M. M Velázquez; López-Díaz, D.; Armando Maestro and M. D. Merchán. (2018). In situ study of the effect of chemical composition on the morphology of Graphene oxide films. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.9-10-1551
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