Improved performance of symmetrical solid oxide fuel cells with redox-reversible cermet electrodes

Yonghong Chen, Zhuanxia Cheng, Yang Yang, Weili Yu, Dong Tian, Xiaoyong Lu, Yanzhi Ding, Lin Bin*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Keeping the advantages of symmetrical solid oxide fuel cells (SSOFCs) with redox-stable electrodes, novel SSOFCs with redox-reversible cermet electrodes are proposed to solve the major problems of low electronic conductivity (<10 S.cm−1) under anode atmosphere and poor electrochemical activity for fuel oxidation. The conventional Ni0.7Co0.3O-Ce0.8Sm0.2O1.9 (NC-SDC) cermet anode is applied simultaneously as a potential redox-reversible cathode for SSOFCs with practical yttria-stabilized zirconia (YSZ) electrolytes. The electrochemical performance of SSOFCs with NC-SDC cermet electrode can be improved via SDC buffer layers and the corresponding maximum power density increases from 140.1 mW cm 2 to 200.2 mW cm−2 at 800 °C. The new redox-reversible cermet electrodes of SSOFCs open doors for development of next-generation SSOFC electrode materials.

Original languageEnglish (US)
Pages (from-to)413-416
Number of pages4
JournalMaterials Letters
Volume188
DOIs
StatePublished - Feb 1 2017

Keywords

  • Ceramics
  • Cermet electrode
  • Electrical properties
  • Electrochemical properties
  • Energy storage and conversion
  • Symmetrical solid oxide fuel cells

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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