The electrocatalytic activity of YMnO3-based electrodes for the O2 and H2 evolution reactions in a strong alkaline medium

Taranu Bogdan-Ovidiu and Sfirloaga Paula: The electrocatalytic activity of YMnO3-based electrodes for the O2 and H2 evolution reactions in a strong alkaline medium.

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Abstract

YMnO3 perovskites synthesized using the sol-gel method were studied regarding their electrocatalytic properties for the O2 and H2 evolution reactions (OER and HER) in a strong alkaline medium. The highest activity was observed during HER experiments, especially for the electrodes manufactured using suspensions containing Nafion, Carbon Black and either Co2+ doped YMnO3 or Sn2+ doped YMnO3. For these samples, the HER overpotential value at i = ─10 mA/cm2 was 0.83 V. The main conclusions are the following: (a) the inclusion of Carbon Black into the electrode manufacturing process improved the HER catalytic activity of all perovskite-modified electrodes and (b) the HER activity of the samples modified with the catalysts, Nafion and Carbon Black was similar despite the different temperatures applied during perovskite synthesis.

Item Type:	Conference or Workshop Item
Journal or Publication Title:	Proceedings of the International Symposium on Analytical and Environmental Problems
Date:	2023
Volume:	29
ISBN:	978-963-306-963-9
Page Range:	pp. 339-343
Language:	English
Publisher:	University of Szeged
Place of Publication:	Szeged
Event Title:	29th International Symposium on Analytical and Environmental Problems
Event Type:	Conference
Event Location:	Szeged
Event Dates:	2023. november 13-14.
Related URLs:	https://acta.bibl.u-szeged.hu/82256/
Uncontrolled Keywords:	Elektrokémia, Elektrokatalízis
Additional Information:	Bibliogr.: 343. p. ; ill. ; összefoglalás angol nyelven
Subjects:	01. Natural sciences 01. Natural sciences > 01.04. Chemical sciences
Date Deposited:	2023. Nov. 27. 14:39
Last Modified:	2023. Nov. 27. 14:39
URI:	http://acta.bibl.u-szeged.hu/id/eprint/82470

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