Efficient electrolysis of CO2 in symmetrical solid oxide electrolysis cell with highly active La0.3Sr0.7Fe0.7Ti0.3O3 electrode material

  • Zhiqun Cao
  • , Bo Wei
  • , Jipeng Miao
  • , Zhihong Wang
  • , Zhe Lü*
  • , Wenyuan Li
  • , Yaohui Zhang
  • , Xiqiang Huang
  • , Xingbao Zhu
  • , Qi Feng
  • , Yu Sui
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

117 Citations (Scopus)

Abstract

Novel perovskite-type La0.3Sr0.7Fe0.7Ti0.3O3 (LSFT) oxide is investigated as both anode and cathode materials in a symmetrical solid oxide electrolysis cell (SOEC) for direct electrolysis of pure CO2 at 800 °C. The current density is 521 mA cm− 2 at an applied voltage of 2.0 V. The lowest polarization resistance Rp of this symmetrical SOEC is obtained at 2.0 V with a value of as low as 0.08 Ω cm2, which is much lower than that of other perovskite and Ni-cermet cathode. LSFT cathode also shows excellent durability in pure CO2 electrolysis, especially at high voltage of 2.0 V. Our results indicate that the LSFT is a promising alternative electrode material for CO2 electrolysis.

Original languageEnglish
Pages (from-to)80-83
Number of pages4
JournalElectrochemistry Communications
Volume69
DOIs
Publication statusPublished - 1 Aug 2016
Externally publishedYes

Keywords

  • CO reduction
  • Solid oxide electrolysis cell
  • Symmetrical cell
  • Titanium-substituted lanthanum strontium ferrite

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