Electrospun nanofiber pyropolymer electrodes for fuel cells on polybenzimidazole membranes

After the deposition of Pt on their surface, the carbon nanofiber materials synthesized by sequential oxidation and pyrolysis of electrospun nanofiber mats based on polyacrylonitrile are used as the gas-diffusion electrodes for high-temperature hydrogen–air fuel cells on a polybenzimidazole (PBI) pr...

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Published inRussian journal of electrochemistry Vol. 52; no. 8; pp. 735 - 739
Main Authors Ponomarev, I. I., Skupov, K. M., Razorenov, D. Yu, Zhigalina, V. G., Zhigalina, O. M., Ponomarev, Iv. I., Volkova, Yu. A., Kondratenko, M. S., Bukalov, S. S., Davydova, E. S.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.08.2016
Springer Nature B.V
Subjects
Catalysts
Chemistry
Chemistry and Materials Science
Electrochemistry
Nanofibers
Nanoparticles
Physical Chemistry
phosphoric acid fuel cell
polybenzimidazole membrane
carbon nanofibers
membrane-electrode assembly
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Summary:After the deposition of Pt on their surface, the carbon nanofiber materials synthesized by sequential oxidation and pyrolysis of electrospun nanofiber mats based on polyacrylonitrile are used as the gas-diffusion electrodes for high-temperature hydrogen–air fuel cells on a polybenzimidazole (PBI) proton-conducting membranes. In contrast to the traditional methods of electrode preparation in which the catalyst (Pt) nanoparticles are localized on the surface of carbon black which is applied as “ink” on the conducting support (carbon paper or tissue), in this study the Pt nanoparticles are being deposited and developed on the surface carbon nanofibers to form a combined gas-diffusion material. In the tests, the resulting electrodes demonstrate good efficiency within hydrogen-air fuel cells on the PBI membrane.
ISSN:1023-1935
1608-3342
DOI:10.1134/S1023193516080097