1. Fabrication of heteroatom doped cobalt catalyst for oxygen reduction and evolution reactions in alkaline medium.
- Author
-
Ahmed, Sheraz, Rim, Hyung‐Ryul, Sun, Ho‐Jung, Lee, Hong‐Ki, Shim, Joongpyo, and Park, Gyungse
- Subjects
- *
OXYGEN reduction , *OXYGEN evolution reactions , *COBALT catalysts , *OXIDATION-reduction reaction , *CHEMICAL reduction , *METAL-organic frameworks - Abstract
The application of heteroatom doped cobalt (Ni@Co/C) prepared from a porous metal–organic framework as the cathode material for the rechargeable zinc–air batteries has been demonstrated. The Ni@Co/C‐modified electrode showed an excellent catalytic activity toward oxidation–reduction reaction and oxygen evolution reactions. The Co/C catalysts, which were Co particle impregnated on graphitic carbon powders, were synthesized after the calcination of Co3 (SDA)3(DMF)2 precursor, and then Ni deposition (Ni@Co/C) was followed on it by chemical reduction. Linear sweep voltammetry measurement indicates that Ni@Co/C‐H800, which had Ni particles on Co/C derived from MOF at 800 °C under N2, exhibited excellent performance. The stable charging/discharging profiles at 20 mA cm−2 of current were obtained for the 350 h in alkaline medium, suggesting Ni@Co/C‐H800 as a potential candidate for oxidation–reduction and evolution reactions. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF