Intriguing electrochemistry in low-temperature single layer ceramic fuel cells based on CuFe2O4

M. I. Asghar*, X. Yao, S. Jouttijärvi, E. Hochreiner, R. Virta, P. D. Lund

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

Abstract

A composite of CuFe2O4 and Gd-Sm co-doped CeO2 is studied for a single layer ceramic fuel cell application. In order to optimize the cell performance, the effects of sintering temperatures (600 °C, 700 °C, 800 °C, 900 °C and 1000 °C) were investigated for the fabrication of the cells. It was found that the cells sintered at 700 °C outperformed other cells with a maximum peak power density of 344 mW/cm2 at 550 °C. The electrochemical impedance spectroscopy analysis on the best cell revealed significant ohmic losses (0.399 Ω cm2) and polarization losses (0.174 Ω cm2) in the cell. The HR-TEM and SEM gave microstructural information of the cell. The HT-XRD spectra showed the crystal structures in different sintering temperatures. The cell performance was stable and the composite material did not degrade during an 8 h stability test under open-circuit condition. This study opens up new avenues for the exploration of this nanocomposite material for the low temperature single component ceramic fuel cell research.

Original languageEnglish
Pages (from-to)24083-24092
Number of pages10
JournalInternational Journal of Hydrogen Energy
Volume45
Issue number45
Early online date1 Jan 2019
DOIs
Publication statusPublished - 14 Sep 2020
MoE publication typeA1 Journal article-refereed

Keywords

  • Catalysis
  • Ceramic
  • Composite
  • Fuel cell
  • Single component

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