Proton-conducting perfluorinated membrane composites with functionalized nanodiamonds
Authors:
O. N. Primachenko, Yu. V. Kulvelis, V. T. Lebedev, A. S. Odinokov, V. Yu. Bayramukov, E. A. Marinenko, I. V. Gofman, A. V. Shvidchenko, A. Ya. Vul, S. S. Ivanchev
Authors from CMD:
The year of the publication:
2020
Journal:
Membranes and membrane Technologies
N 1
vol. 2
1-9
Keywords:
membranes, nanodiamonds, proton conductivity, Aquivion
Abstract:
Composite proton-conducting membranes based on perfluorinated short side chain polymers modified with nanodiamonds having a hydrophilic surface owing to grafted carboxyl groups have been synthesized. Membrane films are prepared by precipitating the polymer from a dimethylformamide solution with introduced nanodiamonds. The proposed method for synthesizing the composites provides a high mechanical strength and an increase in the proton conductivity of the material with an increase in temperature in a 20–50°С range at fairly low diamond concentrations (0.25–1 wt %). These features are important for using the composites in fuel cells at high temperatures.