Topic
Supporting electrolyte
About: Supporting electrolyte is a research topic. Over the lifetime, 5011 publications have been published within this topic receiving 104172 citations.
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TL;DR: In this article, rough surfaced carbon nanofibers bearing evenly distributed iron/cobalt alloy nanoparticles (Fe/Co-CNFs) are developed through the electrospinning of polyvinylpyrrolidone (PVP) mingled with 5.0% of total ferric nitrate and cobalt nitrate concentration.
96 citations
TL;DR: The redox behavior and color of cobalt hexacyanoferrate films depend on the nature of the counter-cations which are sorbed from the aqueous supporting electrolyte into the system during reduction as mentioned in this paper.
95 citations
TL;DR: Electrochemical treatment can solve the problems arising due to effluents and offer an effective alternative to the existing methods and Probable mechanism was proposed for the oxidation of organics present in the effluent.
95 citations
TL;DR: Metal (Pt, stainless steel) coated with partially oxidized polypyrrole with good stability over a period of 1 day and relatively reproducible potential in a given solvent and supporting electrolyte is presented.
Abstract: As an alternative to the usual commercial reference and quasi-reference electrodes (QREs), we propose metal (Pt, stainless steel) coated with partially oxidized polypyrrole as a QRE. The electrode is easily fabricated by cyclic voltammetry (CV) with the metal electrode in an acetonitrile or CH2Cl2 solution of 10 mM pyrrole containing 0.1 M Bu4NPF6. These QREs were more stable than the widely used metal (e.g., Ag, Pt) wire QRE as demonstrated by testing in several aqueous and organic media, with the stability checked by CV with ferrocenemethanol as the redox species. The results obtained demonstrate good stability of these QREs over a period of 1 day and relatively reproducible potential in a given solvent and supporting electrolyte. This electrode has the advantage that it does not contaminate the test solution with ions or solvent from a usual liquid electrolyte (e.g., the KCl in an Ag/AgCl). It is also simple to fabricate very small electrodes for use in nanocells, e.g., in scanning tunneling and electrochemical microscopy.
95 citations
TL;DR: In this article, a simple voltammetric technique for quantification of the chromium(VI) is presented, which is based on the direct linear sweep voltammmetric reduction of Cr(VI), without any accumulation stage, or any complexing agent.
Abstract: Chromium(VI) should be monitored and controlled in the environment, since it is introduced into the environment from several sources and it is both toxic and carcinogenic being harmful to the health of human and also animals. A simple voltammetric technique for quantification of the chromium(VI) is presented in this paper. The technique is based on the direct linear sweep voltammetric reduction of Cr(VI) on a gold plated carbon based composite electrode, without any accumulation stage, or any complexing agent. The effect of supporting electrolyte matrix, pH and also scan rate is investigated. The effect chloride ions interference is also investigated. The calibration curve for chromium(VI) detection using the proposed method shows linearity from 20 μg/L to 2000 μg/L with a detection limit of 4.4 μg/L achieved without any accumulation or pre-concentration process. The method was also successfully used for determination of Cr(V) in river sample water, where recovery of 96% was achieved.
95 citations