A novel composite cathode Er0.4Bi1.6O3-Pr0.5Ba0.5MnO3-δ for ceria-bismuth bilayer electrolyte high performance low temperature solid oxide fuel cells

Jie Hou, Lei Bi*, Jing Qian, Zheng Gong, Zhiwen Zhu, Wei Liu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

A novel composite cathode consisting of A-site disordered Pr0.5Ba0.5MnO3-δ (PBM) and Er0.4Bi1.6O3 (ESB) is developed for solid oxide fuel cells (SOFCs) with ceria-bismuth bilayer electrolyte. Based on Sm0.075Nd0.075Ce0.85O2-δ|ESB (SNDC|ESB) bilayer structured film, the single cell NiO-SNDC|SNDC|ESB|ESB-PBM achieves an encouraging performance with the maximum power density (MPD) of 994 mW cm-2 and an interfacial polarization resistance (Rp) of 0.027 Ω cm2 at 650 °C. Although a possible reaction between ESB and PBM has been identified in the cathode, the ascendant electrochemical performance including the very high fuel cell performance and Rp obtained here can demonstrate that the novel cobalt-free composite cathode ESB-PBM is a preferable alternative for ceria-bismuth bilayer electrolyte high performance low temperature SOFCs (HPLT-SOFCs) and the interfacial reaction in the cathode seems not to be detrimental to the electrochemical performance.

Original languageEnglish (US)
Pages (from-to)306-311
Number of pages6
JournalJournal of Power Sources
Volume301
DOIs
StatePublished - Jan 1 2016

Keywords

  • Ceria-bismuth
  • Electrochemical performance
  • ErBiO-PrBaMnO
  • Low temperature solid oxide fuel cells

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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