publication . Article . 2001

Characterization of the Redox reaction of V(V) in Ammonia Buffers with Square-Wave Voltammetry

Valentin Mirčeski; Rubin Gulaboski; Simka Petrovska-Jovanović; Kornelija Stojanova;
Open Access
  • Published: 01 Jan 2001 Journal: Portugaliae Electrochimica Acta, volume 19, pages 25-41 (issn: 1647-1571, Copyright policy)
  • Publisher: Portuguese Society of Electrochemistry
  • Country: Former Yugoslav Republic of Macedonia
Abstract
The redox reaction of V(V) in ammonia buffer solution of pH = 8.60 was studied by means of square-wave (SWV) and cyclic (CV) voltammetry. The redox reaction studied exhibits properties of a surface redox process in which both reactant and product of the redox reaction are immobilized to the electrode surface. A mathematical model for the electrode mechanism proposed was developed under conditions of square-wave voltammetry. In agreement with the theoretical findings, the phenomena of "split SW peaks" and "quasireversible maximum" are demonstrated experimentally. These unique features of the SWV response of a surface redox reaction are utilized for characterizati...
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free text keywords: Electrochemistry, Chemical sciences, Physical sciences, Chemistry, Redox, Electrode, Ammonia, chemistry.chemical_compound, Voltammetry, Electron transfer, Analytical chemistry, Kinetic energy, Buffer solution, Inorganic chemistry, Reaction rate constant
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