A faradaic impedance study of the reduction of oxygen from aqueous alkaline solution at the dropping mercury electrode
TL;DR: In this paper, the reduction of oxygen to hydrogen peroxide at a dropping mercury electrode in an aqueous solution of 1 M KNO3+0.04 M KOH (pH=12.35) has been studied by means of impedance measurements as a function of frequency and d.c. potential.
About: This article is published in Journal of Electroanalytical Chemistry.The article was published on 1980-02-25 and is currently open access. It has received 5 citations till now. The article focuses on the topics: Dropping mercury electrode & Faradaic impedance.
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TL;DR: In this article, critical pitting temperature (CPT) of two stainless steels is compared using EIS, potentiodynamic and potentiostatic techniques, and the results revealed that the CPT of DSS2205 and 20Cr-28Ni was between 45-55°C and 35-45°C in potentiodynamics polarisation, respectively.
77 citations
39 citations
TL;DR: In this paper, it was shown that the rate constant of the protonation step of the superoxide ion becomes pH-dependent in the presence of water and free protons.
23 citations
12 citations
TL;DR: The enhancement of the dc polarographic reduction current of oxygen by adsorbed Pb(II) species first observed by Strnad in 1939 and later studied qualitatively by a number of other authors was reconsidered both experimentally and theoretically as discussed by the authors.
3 citations
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1,522 citations
TL;DR: In this paper, the authors measured the solubility of oxygen in aqueous KOH solutions by a Van Slyke apparatus and by an adsorption technique developed by Hildebrand.
535 citations
TL;DR: In this article, it was shown that for the electrolyte concentrations commonly employed in fuel cells the solubility and diffusivity of oxygen may each be reduced to as little as 2% of their corresponding values for pure water.
Abstract: Measurements of the solubility of oxygen in sulfuric acid, phosphoric acid, and potassium hydroxide are reported, together with values of the diffusivity of oxygen in potassium hydroxide solutions at 25°C. It is shown that for the electrolyte concentrations commonly employed in fuel cells the solubility and diffusivity of oxygen may each be reduced to as little as 2% of their corresponding values for pure water.
232 citations
TL;DR: In this paper, the standard potential of the O 2 −0.270 V/NHE system has been determined by comparing the data obtained by pulse polarography and reoxidation chronocoulometry.
102 citations