ISSN 1608-4039 (Print)
ISSN 1680-9505 (Online)

For citation:

Kungurtsev Y. E., Ponomareva V. G. Proton conductivity of modified polymeric membranes based on CsH₂PO₄. Electrochemical Energetics, 2024, vol. 24, iss. 4, pp. 227-231. DOI: 10.18500/1608-4039-2024-24-4-227-231, EDN: ZVLIGL

This is an open access article distributed under the terms of Creative Commons Attribution 4.0 International License (CC-BY 4.0).
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Language: 
Russian
Heading: 
Electrolytes for sources of electrochemical power
Article type: 
Article
UDC: 
544.6.018.462.42:544.6.018.47
DOI: 
10.18500/1608-4039-2024-24-4-227-231
EDN: 
ZVLIGL

Proton conductivity of modified polymeric membranes based on CsH₂PO₄

Autors: 
Kungurtsev Yurii E., Institute of Chemistry of a Solid body and Mechanochemistry of the Siberian Branch of RAS
Ponomareva Valentina Georgievna, Institute of Chemistry of a Solid body and Mechanochemistry of the Siberian Branch of RAS
Abstract: 

Comparative data on the effect of the heterogeneous nanodiamond additive on the protonconducting properties of polymer three-phase systems (CsH2PO4/fluoropolymer/nanodiamond) were obtained. Ultradispersed polytetrafluoroethylene and fluoroplast-42 (F-42) were used as fluoropolymers. It was shown that the introduction of small nanodiamond additives (fv = 0.6 vol.%) into the polymer electrolytes led to an increase in the superionic conductivity of hybrid systems due to the dispersion of salt, its partial amorphization and the more uniform distribution.

Key words: 
cesium dihydrogen phosphate
nanodiamond
nanocomposite electrolytes
proton conductivity
Acknowledgments: 
The authors are grateful to Cand. Sci. (Chem.) Oleg V. Elkin (Vyatka State University) and Cand. Sci. (Chem.) Anton V. Kuzmin (Vyatka State University) for the providing the polymer samples.
Reference: 
  1. Haile S. M., Chisholm I C. R., Sasaki K., Boysenand D. A., Uda T. Solid acid proton conductors: From laboratory curiosities to fuel cell electrolytes. Faraday Discussions, 2007, vol. 134, pp. 17–39. https://doi.org/10.1039/b604311a 
  2. Boysen D. A., Uda T., Chisholm C. R. I., Haile S. M. High-performance solid Acid fuel cells through humidity stabilization. Science, 2004, vol. 303, pp. 68–70. https://doi.org/10.1126/science.1090920
  3. Colodrero R. M. P., Olivera-Pastor P., Cabeza A., Bazaga-García M. Properties and applications of metal phosphates and pyrophosphates as proton conductors. Materials, 2022, vol. 15, iss. 4, article no. 1292. https://doi.org/10.3390/ma15041292
  4. Bagryantseva I. N., Ponomareva V. G., Lazareva N. P. Proton-conductive membranes based on CsH2PO4 and ultra-dispersed Polytetrafluoroethylene. Solid State Ionics, 2019, vol. 329, pp. 61–66. https://doi.org/10.1016/j.ssi.2018.11.010
  5. Bagryantseva I., Ponomareva V., Kungurtsev Y. High-Conductive CsH2PO4 Membranes with PVDF-Based Polymers Additives. Membranes, 2023, vol. 13, no. 7, article no. 617. https://doi.org/10.3390/membranes13070617
  6. Qing G., Kikuchi R., Takagaki A., Sugawara T., Oyama S. T. CsH2PO4/Epoxy Composite Electrolytes for Intermediate Temperature Fuel Cells. Electrochimica Acta, 2015, vol. 169, pp. 219–226. https://doi.org/10.1016/j.electacta.2015.04.089
  7. Mateyshina Y., Alekseev D., Uvarov N. The effect of the nanodiamonds additive on ionic conductivity of silver iodide. Materials Today Proceedings, 2019, vol. 25, pp. 373–376. https://doi.org/10.1016/j.matpr.2019.12.094
  8. Ponomareva V., Bagryantseva I., Shutova E. Novel nanocomposite systems based on cesium dihydrogen phosphate: Electrotransport structural, morphological and mechanical characteristics. Inorganic Chemistry Communications, 2024, vol. 162, article no. 112256. https://doi.org/10.1016/j.inoche.2024.112256
Received: 
16.10.2024
Accepted: 
11.11.2024
Published: 
25.12.2024