Ionics

, Volume 23, Issue 11, pp 3163–3168 | Cite as

An electron transfer in CuCl-CuCl2 melt at different Cl2 partial pressures

  • P. Yu. Shevelin
  • A. A. Raskovalov
  • N. G. Molchanova
Original Paper

Abstract

Electron and ion transference numbers, conductivity, and Cu+/Cu2+ concentration ratio in the CuCl-CuCl2 melt are measured at temperature of 560 °C and partial pressure of chlorine from 0.1 to 1 atm. The electron transference numbers and the total conductivity grow with chlorine partial pressure; that is accompanied by decreasing of ionic conductivity both in contribution and absolute values. The total conductivity changes from ∼6 to ∼8 S cm−1 while pCl2 increases from 0.1 to 1 atm. The electron transference numbers increase from 67 to 95% in the same chlorine partial pressure range. The electronic conductivity is evaluated by two independent methods. Values of electronic conductivity obtained from the concentrations of Cu2+ ions are close to that obtained by Faraday efficiency measurements.

Keywords

Ionic-electronic melt Electronic conductivity Transference numbers Copper chlorides Electron transfer 

Notes

Acknowledgments

The reported study was funded by RFBR, according to the research project no. 16-33-60095 mol_а_dk.

The research has been carried out with the equipment of the Shared Access Center “Composition of Compounds” of the Institute of High Temperature Electrochemistry.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2017

Authors and Affiliations

  • P. Yu. Shevelin
    • 1
  • A. A. Raskovalov
    • 1
  • N. G. Molchanova
    • 1
  1. 1.The Institute of High-Temperature Electrochemistry of the Ural Branch of RASYekaterinburgRussia

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