%0 Conference Paper
%A  Taranu Bogdan-Ovidiu
%A  Sfirloaga Paula
%B 29th International Symposium on Analytical and Environmental Problems
%C Szeged
%D 2023
%F acta:82470
%I University of Szeged
%K Elektrokémia, Elektrokatalízis
%P 339-343
%T The electrocatalytic activity of YMnO3-based electrodes for the O2 and H2 evolution reactions in a strong alkaline medium
%U http://acta.bibl.u-szeged.hu/82470/
%V 29
%X 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.
%Z Bibliogr.: 343. p. ; ill. ; összefoglalás angol nyelven