Dataset title: Data of bifunctional oxygen electrocatalyst based on Fe, Co, and nitrogen co-doped graphene-coated alumina nanofibers for Zn-air battery air electrode
Marek Mooste, Zubair Ahmed, Pavels Kapitulskis, Roman Ivanov, Alexey Treshchalov, Helle-Mai Piirsoo, Arvo Kikas, Vambola Kisand, Kaupo Kukli, Irina Hussainova, Kaido Tammeveski

Contact information:
Marek Mooste (marek.mooste@ut.ee), Kaido Tammeveski (kaido.tammeveski@ut.ee)
Institute of Chemistry
University of Tartu
Ravila 14a
50411 Tartu
Estonia

This dataset contains the data presented in the figures of pulbished paper "Bifunctional oxygen electrocatalyst based on Fe, Co, and nitrogen co-doped graphene-coated alumina nanofibers for Zn-air battery air electrode" Applied Surface Science 660 160024 (https://doi.org/10.1016/j.apsusc.2024.160024).
The electrochemical characterisation data, which was measured in University of Tartu Institute of Chemistry, is for Figures 5, 6, 7, 8, 9, S3, S4, S5, S6  and the nomenclature of the catalysts is the same as in the mentioned article.

Data was collected using Autolab potentiostat/galvanostat PGSTAT30 (Metrohm Autolab, The Netherlands) controlled with NOVA version 2.1.4 software.
An in-house built device was used to study the catalysts performance and stability in Zn-air battery conditions.

For Figures 5, 6, 7, 8, 9, S3, S4, S5 electrochemical data, the currents have been converted from current (A) to current densities (mA/cm2).
For Figures 5b, 5c 6, 7, S4a the background currents, measured in Ar-saturated solution, have been subtracted, in addition to conversion to current densities.
For Figures 8b, 9 electrochemial data, the time (s) has been converted to time (h).

Licence:
This dataset is licensed under the Creative Commons Attribution 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

Funding:
This study was financially supported by the Estonian Research Council (grants PRG723, PRG753, PRG643, PUTJD1170 and SJD67). This work was also supported by the Estonian Ministry of Education and Research (TK210, Centre of Excellence in Sustainable Green Hydrogen and Energy Technologies).