Figure 11. Reduction of a clear graphene oxide solution using sodium dithionite. Graphene flakes appear “out of nothing”. Observation in regular intervals for altogether 45 minutes

From

Graphene – Exciting Insights into the Synthesis and Chemistry of the Miracle Material of the 21st Century and Its Implementation in Chemistry Lessons for the First Time

Andreas Schedy, Dominik Quarthal, Marco Oetken

World Journal of Chemical Education. 2018, 6(1), 43-53 doi:10.12691/wjce-6-1-8