Electrochemical Performance of SrWO4 Electrolyte for SOFC

Authors

  • Ahmed Afif Chalmers University of Technology
  • Nikdalila Radenahmad Universiti Brunei Darussalam
  • Juliana Zaini Universiti Brunei Darussalam
  • Abdalla Mohamed Abdalla Suez Canal University
  • Seikh Mohammad Habibur Rahman Chalmers University of Technology
  • Quentin Hoon Nam Cheok Universiti Brunei Darussalam
  • Abul Kalam Azad Universiti Brunei Darussalam

Keywords:

Scheelite structure, Electrolyte, SOFC, Impedance

Abstract

Scheelite structured SrWO4 material was synthesized by the solid-state sintering method and studied with respect to phase stability and ionic conductivity under condition of technological relevance for SOFC applications. The resulting compound was crystallized in the single phase of tetragonal scheelite structure with the space group of I41/a. Room temperature X-ray diffraction and subsequent Rietveld analysis confirms its symmetry, space group and structural parameters. Analysis by SEM illustrated a highly dense structure. SrWO4 sample shows lower conductivity compared to the traditional BCZY perovskite structured materials. SrWO4 sample exhibited an ionic conductivity of 1.93 × 10−6 S cm-¹ at 1000℃ in dry Ar condition. Since this scheelite type compound demonstrated significant conductivity and a dense microstructure, it could serve in SOFC as a mixed ion-conducting electrolyte.

Downloads

Download data is not yet available.

Downloads

Published

01-09-2021

How to Cite

Afif, A., Radenahmad, N., Zaini, J., Mohamed Abdalla, A., Habibur Rahman, S. M. ., Nam Cheok, Q. H. ., & Azad, A. K. (2021). Electrochemical Performance of SrWO4 Electrolyte for SOFC. International Journal of Integrated Engineering, 13(7), 74–80. Retrieved from https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/7432

Most read articles by the same author(s)