Development and electrochemical performance of co-doped ceria (Sm0.10Ga0.10Ce0.80O2-δ) electrolyte material for low-temperature solid oxide fuel cell (LT-SOFC)

A. K.M. Asif Iqbal, A. K.M. Parvez Iqbal, Dewan Muhammad Nuruzzaman

Research output: Journal PublicationArticlepeer-review

Abstract

Developing an electrolyte material for using in the low-temperature fuel cell (LT-SOFC) is a highly challenging issue. In this study, Samarium (Sm) and Gallium (Ga) doped ceria CeO2 (Sm0.10Ga0.10Ce0.80O2-δ) named as SGDC electrolyte material have been prepared by co-precipitation method and its ionic conductivity and electrical performance have been evaluated in the 400–700 °C temperature range. The crystallographic condition and phase formation of the material was analysed and observed a single-phase cubic fluorite crystal structure with a mean value of 39 nm in the prepared SGDC. The electrolyte materials showed a comparatively lower activation energy of 0.49 eV; however, they exhibited remarkably high ionic conductivity, current density and power density at a significantly lower operating temperature of 400 °C. The electrochemical results demonstrate the potentiality of the prepared Sm0.10Ga0.10Ce0.80O2-δ material to be used as the electrolyte for LT-SOFC.

Original languageEnglish
Article number135143
JournalMaterials Letters
Volume352
DOIs
Publication statusPublished - 1 Dec 2023

Keywords

  • Ceramic material
  • Electrolyte
  • Ionic conductivity
  • Solid oxide fuel cell (SOFC)

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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