Fe ja Co ftalotsüaniinidega kaasdopeeritud süsinikfiibril põhineva hapniku redutseerumise katalüsaatori valmistamine kütuseelemendi katoodile

Käesolevas bakalaureusetöös uuritakse hapniku elektroredutseerumist ja hapniku eraldumisreaktsiooni erinevate koostisega elektroketramise viisil saadud materjalidel. Siin töös viidi materjali koostisesse kahe erineva siirdemetalli (Fe ja Co) ftalotsüaniiniühendid. Need ühendid on valitud, kuna vastavalt kirjandusele võivad need tõsta hapniku redutseerumisreaktsiooni ja eraldumisreaktsiooni elektrokatalüütilist aktiivsust. Materjale pürolüüsiti 900 °C juures lämmastiku keskkonnas. Elektrokeemilised mõõtmised viidi läbi 0,1 M KOH lahuses ja anioonvahetuspolümeer membraaniga kütuseelemendis. Füüsikalise karakteriseerimise jaoks kasutati skaneerivat elektronmikroskoopi energiat hajutava röntgenspektroskoopiaga ning röntgenfotoelektronspektroskoopiat. Materjalide poorsuse uurimiseks teostati N2 adsorptsiooni-desorptsiooni mõõtmised

Data of outstanding platinum group metal-free bifunctional catalysts for rechargeable zinc-air batteries

This dataset contains the data presented in the figures of pulbished paper "Outstanding platinum group metal-free bifunctional catalysts for rechargeable zinc-air batteries" Electrochimica Acta 446 142126 (https://doi.org/10.1016/j.electacta.2023.142126) The electrochemical characterisation data, which was measured in University of Tartu Institute of Chemistry, is for Figures 2, 3, 4, 5, 6 and the nomenclature of the catalysts is the same as in the mentioned article

Data of electrospun carbon nanofibre-based catalysts prepared with Co and Fe phthalocyanine for oxygen reduction in acidic medium

This dataset contains the data presented in the figures of pulbished paper "Electrospun Carbon Nanofibre-Based Catalysts Prepared with Co and Fe Phthalocyanine for Oxygen Reduction in Acidic Medium" ChemElectroChem, e202300131 (https://doi.org/10.1002/celc.202300131). The electrochemical characterisation data, which was measured in University of Tartu Institute of Chemistry, is for Figures 1, 2, 4, 5, 6 and the nomenclature of the catalysts is the same as in the mentioned article

Data of iron, cobalt, and nickel phthalocyanines tri-doped electrospun carbon nanofibre-based catalyst for rechargeable zinc-air battery air electrode

This dataset contains the data presented in the figures of pulbished paper "Iron, Cobalt, and Nickel Phthalocyanines Tri-Doped Electro-spun Carbon Nanofibre-Based Catalyst for Rechargeable Zinc-Air Battery Air Electrode" Materials 16 4626 (https://doi.org/10.3390/ma16134626). The electrochemical characterisation data, which was measured in University of Tartu Institute of Chemistry, is for Figures 5, 6, 7, 8, 9 and the nomenclature of the catalysts is the same as in the mentioned article

Data of iron and cobalt phthalocyanine embedded electrospun carbon nanofiber-based catalysts for anion exchange membrane fuel cell cathode

This dataset contains the data presented in the figures of pulbished paper "Iron and cobalt phthalocyanine embedded electrospun carbon nanofiber-based catalysts for anion exchange membrane fuel cell cathode" Journal of Catalysis 422, 117-130 (https://doi.org/10.1016/j.jcat.2023.04.008). The electrochemical characterisation data, which was measured in University of Tartu Institute of Chemistry, is for Figures 1, 2, 4, 5, 6, 11 and the nomenclature of the catalysts is the same as in the mentioned article

The Preparation of Dual-Metal and Nitrogen Co-doped Nanocarbon Cathode Catalysts for Polymer Electrolyte Membrane Fuel Cells

The report for the preparation of the dual-metal (Fe and Co) doped electrospun carbon nanofibre (CNF)-based non-precious-metal catalysts (NPMC) for low-temperature anion-exchange membrane fuel cells and proton-exchange membrane fuel cells (PEMFC) cathode. Also, the preparation of dual-metal (Fe/Co, Fe/Cu, Fe/Mn) doped silicon oxycarbide (SiOC)-based NPMC for high-temperature PEMFC cathode is reported for the very first time. The oxygen reduction reaction performance in acidic and alkaline medium is reported using the rotating disc electrode voltammetry