Cobalt, iron, and nitrogen co-doped graphene coated ceramic nanowire-based bifunctional oxygen electrocatalyst for Zn-air battery
| dc.contributor.advisor | Tammeveski, Kaido, juhendaja | |
| dc.contributor.advisor | Mooste, Marek, juhendaja | |
| dc.contributor.author | Kapitulskis, Pavels | |
| dc.date.accessioned | 2023-06-15T07:43:34Z | |
| dc.date.available | 2023-06-15T07:43:34Z | |
| dc.date.issued | 2023 | |
| dc.description.abstract | Structural and elemental composition of several graphene-coated Al2O3 nanowire-based cat- alyst materials prepared by functionalization with dicyandiamide and Fe and Co salts via pyrolysis were studied using several physical characterisation methods. Electrocatalytic ox- ygen reduction reaction (ORR) activity of the materials was studied using the rotating disk electrode method in a 0.1 M KOH solution. Using the same method, the oxygen evolution reaction activity was studied for the catalyst material with the highest ORR activity. Addi- tionally, the catalyst’s rechargeable Zn-air battery performance was assessed, showing su- perior power output and cycle life than those of a commercial Pt-Ru/C catalyst. | et |
| dc.identifier.uri | https://hdl.handle.net/10062/90647 | |
| dc.language.iso | eng | et |
| dc.publisher | Tartu Ülikool | et |
| dc.rights | embargoedAccess | et |
| dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 International | * |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
| dc.subject | electrocatalysis | et |
| dc.subject | oxygen reduction reaction | et |
| dc.subject | oxygen evolution reaction | et |
| dc.subject | non-pre- cious metal catalyst | et |
| dc.subject | Zn-air battery | et |
| dc.subject | ceramic nanowire | et |
| dc.title | Cobalt, iron, and nitrogen co-doped graphene coated ceramic nanowire-based bifunctional oxygen electrocatalyst for Zn-air battery | et |
| dc.type | Thesis | et |