Figure 3
From: Proton conduction of polyAMPS brushes on titanate nanotubes
Proton conductivity and water uptake of the formed samples.
(a) Electrochemical impedance spectra of polyAMPS brush (polymerization time of 6.5 hours) under different humidity as indicated in the figure. (b) Calculated humidity-dependent proton conductivity of polyAMPS brush (solid squares, polymerization time of 6.5 hours), physically mixed polyAMPS and TiNTs (solid curcles) and free polyAMPS (solid triangles). (c) Water uptake properties of polyAMPS brush (open squares, polymerization time of 6.5 hours) and free polyAMPS (open circles) under different relative humidity at 60°C. Relative humidity was controlled by added desired amount of water into the testing chamber and monitored with a humidity sensor. Solid lines are guide to eyes.
