Data title: Data of bimetal phthalocyanine-modified carbon nanotube-based bifunctional catalysts for zinc-air batteries Authors: Yogesh Kumar, Elo Kibena-Põldsepp, Jekaterina Kozlova, Arvo Kikas, Maike Käärik, Jaan Aruväli, Vambola Kisand, Jaan Leis, Aile Tamm, and Kaido Tammeveski Contact Information: Kaido Tammeveski (Kaido.tammeveski@ut.ee) Institute of Chemistry Univesity of Tartu Ravila 14a 50411 Tartu Estonia This dataset contains the data presented in the figures of the published paper "Bimetal phthalocyanine-modified carbon nanotube-bsed bifunctional catalysts for the zinc-air batteries" ChemElectroChem 2021, 8, 2662-2670 (https://doi.org/10.1002/celc.202100498) The data is for figure 4(a, b and d), Figure 5, Figure 6c 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. The working electrode was glassy carbon electrode with diameter of 5 mm. For all supplied electrochemical data the measured currents have been converted from current (A) to current densities (symbol, j) (mA/cm2, that is multiplied by 1000 and divided by electrode area, A=0.2 cm2). For Figure 4b and Figure 5a, the background currents (measured in Ar-saturated solution) have been subtracted, in addition to conversion to current densities. 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: The present work was financially supported by the Estonian Research Council (grants PRG723 and PRG4). This research was also supported by the EU through the European Regional Development Fund (TK141, "Advanced materials and high-technology devices for energy recuperation systems", TK134, "Emerging orders in quantum and nanomaterials" and TK143, "Molecular Cell Engineering").