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Ni-doped spinel oxides NixCo1-xFe2O4 (x=0, 0.25, 0.5, 0.75) hollow nanospheres electrocatalysts are synthesized with a simple hydrothermal approach. Scanning electron microscopy (SEM) and X-ray diffraction (XRD) results reveal that the morphology, hollow and spinel structures of the cobalt ferrites remain unchanged with doping. The electrocatalytic activity of the Ni-doped CoFe2O4 with different doping...
In the present study, the effects of discharge and charge current densities, depth-of-discharge, initial porosity of Redox Cycle Unit (RCU), distance between Reversible Solid Oxide Fuel Cell (RSOFC) and RCU, and kinetic rate constant for the Fe3O4-reduction reaction on the electrochemical performance of a Solid Oxide Iron-Air Redox Battery (SOIARB) operated at 550°C have been systematically investigated...
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