| 초록 |
Mediated electrochemical reduction (MER) in a full electrochemical cell must be enrooted to utilize the full electrochemical cell along with MEO process. It is well documented from the literature that metal complexes are more suitable to use as a mediator in the MER process due to stabilize the active low valent state of metal ion. The present work focuses on reduction of Ni(II)(CN)54- especially at different electrodes and concentrations. First, current density, temperature, and anodic part (Pt electrode as anode in 5 M H2SO4) kept constant. The Ni(II)(CN)54- reduction investigated using its different concentration and cathodes such as Ti, Ag, and Cu in 10 M KOH solution. The reduction of Ni(II)(CN)54- confirmed via ORP electrode by reduction potential variation. The reduction efficiencies calculated using titration with FeSO4 and KMnO4. Additionally, cyclic voltammetry, SEM and XRD analyses of the electrodes paved a way to support the suitable electrode on effective reduction of Ni(II)(CN)54-. Finally, there will be a discussion on the electrode and concentration dependence of Ni(II)(CN)54- reduction. |
