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Volume 190, 2016
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Estimation of the composition of intermetallic compounds in LiCl–KCl molten salt by cyclic voltammetry

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Abstract

In this work, the compositions of Ce–Al, Er–Al and La–Bi intermetallic compounds were estimated by the cyclic voltammetry (CV) technique. At first, CV measurements were carried out at different reverse potentials to study the co-reduction processes of Ce–Al, Er–Al and La–Bi systems. The CV curves obtained were then re-plotted with the current as a function of time, and the coulomb number of each peak was calculated. By comparing the coulomb number of the related peaks, the compositions of the Ce–Al, Er–Al and La–Bi intermetallic compounds formed in the co-reduction process could be estimated. The results showed that Al11Ce3, Al3Ce, Al2Ce and AlCe could be formed by the co-reduction of Ce(III) and Al(III). For the co-reduction of Er(III) and Al(III), Al3Er2, Al2Er and AlEr were formed. In a La(III) and Bi(III) co-existing system in LiCl–KCl melts, LaBi2, LaBi and Li3Bi were the major products as a result of co-reduction.

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Publication details

The article was received on 12 Dec 2015, accepted on 11 Jan 2016, published on 12 Jan 2016 and first published online on 12 Jan 2016


Article type: Paper
DOI: 10.1039/C5FD00220F
Citation: Faraday Discuss., 2016,190, 387-398
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    Estimation of the composition of intermetallic compounds in LiCl–KCl molten salt by cyclic voltammetry

    Y. L. Liu, K. Liu, L. Y. Yuan, Z. F. Chai and W. Q. Shi, Faraday Discuss., 2016, 190, 387
    DOI: 10.1039/C5FD00220F

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