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Characterization of a 12 M KOH zincate fuel for green energy backup systems using flow injection coupled to inductively coupled plasma optical emission spectrometry

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Abstract

For the first time, the overall analysis of a 12 M KOH zincate fuel, which is used in green energy backup systems, is explored using inductively coupled plasma optical emission spectrometry (ICPOES). A quick novel method allowing monitoring of the fuel was developed to avoid time-consuming neutralization/digestion of KOH. By employing various techniques, including flow injection analysis with matrix-matched external calibration, and standard additions of 10-fold diluted fuel, a final procedure was formulated for the measurement of additives (Al, Fe, Mg, In, Si), corrosion products (such as C from CO32−), and Zn particles filtered from solution, along with verification of K concentration. Furthermore, the effects of exposing the potassium zincate electrolyte fuel to air were assessed, demonstrating how potassium carbonate precipitate formation could affect the elemental concentrations in the fuel over time.

Graphical abstract: Characterization of a 12 M KOH zincate fuel for green energy backup systems using flow injection coupled to inductively coupled plasma optical emission spectrometry

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Publication details

The article was received on 15 Jan 2019, accepted on 06 Feb 2019 and first published on 06 Feb 2019


Article type: Paper
DOI: 10.1039/C9JA00012G
Citation: J. Anal. At. Spectrom., 2019, Advance Article

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    Characterization of a 12 M KOH zincate fuel for green energy backup systems using flow injection coupled to inductively coupled plasma optical emission spectrometry

    T. K. Anderlini, D. R. Bruce and D. Beauchemin, J. Anal. At. Spectrom., 2019, Advance Article , DOI: 10.1039/C9JA00012G

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