Determining the coefficients of ambipolar ion diffusion by the method of laser optogalvanic spectroscopy in a luminous gas-air flame

Insight into the electroreduction of nit

Insight into the electroreduction of nitrate ions at a copper electrode, in neutral solution, after determination of their diffusion coefficient by electrochemical impedance spectroscopy

✍ Nizar Aouina; Hubert Cachet; Catherine Debiemme-chouvy; Thi Tuyet Mai Tran 📂 Article 📅 2010 🏛 Elsevier Science 🌐 English ⚖ 280 KB

The electrochemical reduction of nitrate ions at a copper electrode in an unbuffered neutral aqueous solution is studied. Using a two compartment electrochemical cell, three stationary cathodic waves, noted P1, P2 and P3, were evidenced by cyclic voltammetry at -0.9, -1.2 and -1.3 V/SCE, respectivel