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Differential pulse voltammetry studies of heavy metal fluoride melts

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Abstract

A study of the electrochemistry of trace metals in heavy metal fluoride melts at 550 °C has been conducted at a stationary electrode with a view to establishing electroanalytical methods for these melts. Reproducible differential pulse voltammetry traces were obtained, the trace metal oxidation peaks behaving as predicted by the theory of Osteryoung et al. The peak current for Fe2+ reduction in a fluoride melt was found to be linear in pulse amplitude up to 70 mV and linear in (pulse duration)−1/2. The peak potential was also found to be a linear function of pulse amplitude. Scan rates around 3 mV s−1 and sampling times around 8 ms were found to produce the optimum analytical response.

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Authors and Affiliations

  1. School of Chemistry, Monash University, Clayton, Victoria, 3800, Australia

    D.R. Macfarlane, Zhiping Zhou & P.J. Newman

Authors
  1. D.R. Macfarlane
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  2. Zhiping Zhou
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  3. P.J. Newman
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Correspondence to D.R. Macfarlane.

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Macfarlane, D., Zhou, Z. & Newman, P. Differential pulse voltammetry studies of heavy metal fluoride melts. Journal of Applied Electrochemistry 34, 197–204 (2004). https://doi.org/10.1023/B:JACH.0000009925.38177.fd

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  • DOI: https://doi.org/10.1023/B:JACH.0000009925.38177.fd

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