Antimony-lead melts for high temperature electrochemical applications

  • S. M. Mikhalev Centre of Mechanical Technology and Automation (TEMA), Department of Mechanical Engineering, University of Aveiro, 3810-193, Aveiro, Portugal
  • Paulo S.B. Julião Centre of Mechanical Technology and Automation (TEMA), Department of Mechanical Engineering, University of Aveiro, 3810-193, Aveiro, Portugal
  • F. J.A. Loureiro Centre of Mechanical Technology and Automation (TEMA), Department of Mechanical Engineering, University of Aveiro, 3810-193, Aveiro, Portugal
  • A. L. Shaula Centre of Mechanical Technology and Automation (TEMA), Department of Mechanical Engineering, University of Aveiro, 3810-193, Aveiro, Portugal
  • D. P. Fagg Centre of Mechanical Technology and Automation (TEMA), Department of Mechanical Engineering, University of Aveiro, 3810-193, Aveiro, Portugal
Keywords: Fuel cells, Alloy melts, Polarization resistance, High-temperature electrochemistry

Abstract

The electrochemical behaviour of antimony-lead melt on saturation with oxygen was studied to assess further prospects of such melts as anode materials for high-temperature fuel cells.
A perovskite ceramic was used as a robust current collector material. The related mechanisms of alloying and phase segregation were revealed at different melt oxidation levels using combined impedance spectroscopy and thermodynamic analysis.

Published
2021-12-19