Supporting ionic conductivity of Li2CO3/K2CO3 molten carbonate electrolyte by using yttria stabilized zirconia matrix

Jarosław Milewski, Tomasz Wejrzanowski, Kuan Zong Fung, Arkadiusz Szczśniak, Karol Ćwieka, Shu Yi Tsai, Olaf Dybiński, Jakub Skibiński, Jhih Yu Tang, Łukasz Szabłowski

Research output: Contribution to journalArticlepeer-review

Abstract

It is proposed that dual conductive electrolytes have the potential to improve properties of MCFC by using oxygen ion conductors as matrix material, creating what is termed composite electrolyte. In this work we present the results of testing a novel type of electrolyte of molten carbonate fuel cell which consists of Yttria Stabilized Zirconia impregnated by Lithium/Potassium carbonates. Polarization curves were obtained for temperatures between 500 °C and 800 °C. Without very accurate measurements it is not easy to determine the additional electric charge provided by oxygen ions (O=). We made an attempt to build a mathematical model which takes into account both conductivities and, based on the model, estimated the ratio of electric charge provided by oxygen ions and carbonate ions.

Original languageEnglish
Pages (from-to)14977-14987
Number of pages11
JournalInternational Journal of Hydrogen Energy
Volume46
Issue number28
DOIs
Publication statusPublished - 2021 Apr 21

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

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