Effects of Fe2O3 doping on structural and electrical properties of 8 mol% yttria-stabilized zirconia electrolyte for solid oxide fuel cells

Ok Sung Jeon, Myeong Geun Park, Rak Hyun Song, Kwang Hyun Ryu, Chan Woong Na, Yong Gun Shul, Jin Goo Lee

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

The effects of doping a trace of Fe2O3 on the structural and electrical properties of 8 mol% yttria-stabilized zirconia (8YSZ) are investigated. The 8YSZ electrolytes doped with various Fe2O3 contents are applied to a solid oxide fuel cell to confirm whether it is positive or negative for SOFC performances. In this study, the 8YSZ electrolyte with a trace of Fe2O3 shows the increased oxygen vacancies and better ionic conductivity. The optimum Fe2O3 doping content is 500 ppm at a sintering temperature of 1400 °C. The 8YSZ electrolyte doped with 500 ppm Fe2O3 shows 0.122 S cm−1 and 0.598 W cm−2 at 800 °C in the ionic conductivity and maximum power density, respectively. The power density of the cell based on the 8YSZ electrolyte doped with 500 ppm Fe2O3 is about 1.5 times higher than the cell using the pristine 8YSZ electrolyte. Thus, the introduction of a trace of Fe2O3 to the 8YSZ can improve its structural and electrical properties and finally SOFC performances.

Original languageEnglish
Pages (from-to)3208-3214
Number of pages7
JournalJournal of Materials Science: Materials in Electronics
Volume33
Issue number6
DOIs
Publication statusPublished - 2022 Feb

Bibliographical note

Funding Information:
This work was supported by National Research Foundation of Korea (NRF) grant funded by Korea government (MSIT) (No. 2021R1A2C2092130). This research was supported by the National Research Council of Science & Technology(NST) grant by the Korea government (MSIT) (No. CPS21131-100). This research was supported by Materials, Components & Equipment Research Program funded by the Gyeonggi Province.

Publisher Copyright:
© 2022, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Fingerprint

Dive into the research topics of 'Effects of Fe2O3 doping on structural and electrical properties of 8 mol% yttria-stabilized zirconia electrolyte for solid oxide fuel cells'. Together they form a unique fingerprint.

Cite this