Investigations of Printed Flexible pH Sensing Materials Based on Graphene Platelets and Submicron RuO<sub>2</sub> Powders

<div>Comparison of the SEM images of RuO<sub>2</sub>/GNP/PMMA composite: before (a) and after (b) bending test.</div>

Journal of Sensors

Figure 7: Investigations of Printed Flexible pH Sensing Materials Based on Graphene Platelets and Submicron RuO<sub>2</sub> Powders 