Influence of Electrooxidation of Ni Wire Electrodes on the Kinetics of Oxygen Evolution Reaction Studied in 0.1 mol dm-3 NaOH
AUTOR(ES)
Slis, Andrii
FONTE
J. Braz. Chem. Soc.
DATA DE PUBLICAÇÃO
2019-02
RESUMO
This work reports on oxygen evolution reaction (OER), studied at nickel wire electrode material. Electrocatalytic behavior of non-oxidized and electrooxidized Ni wire samples was evaluated in 0.1 mol dm-3 NaOH solution for the potential range: 1600-2000 mV vs. RHE. The performance of nickel electrodes was examined by alternating current (a.c.) impedance spectroscopy, cyclic voltammetry and Tafel polarization measurements. Electrochemical oxidation of Ni wire radically increased the kinetics of the OER, exhibited through reduced charge-transfer resistance parameter and considerably modified Tafel polarization slopes.
Documentos Relacionados
- Electrochemical behaviour of iron in NaOH 0.01 mol/L solutions containing variable amounts of silicate
- The Inhibition of Sodium Oleate for Pitting Corrosion of Aluminum Alloy 2024 in 0.1 mol L-1 NaCl Solution
- The antimicrobial effect of 0.1 ppm ozonated water on 24-hour plaque microorganisms in situ
- Production of hydrogen in the reaction between aluminum and water in the presence of NaOH and KOH
- Influence of the electrolyte composition on the kinetics of the oxygen evolution reaction and ozone production processes