Industrial-grade rare-earth and perovskite oxide for high-performance electrolyte layer-free fuel cell

  • Chen Xia
  • , Baoyuan Wang
  • , Ying Ma
  • , Yixiao Cai
  • , Muhammad Afzal
  • , Yanyan Liu
  • , Yunjuan He
  • , Wei Zhang
  • , Wenjing Dong
  • , Junjiao Li
  • , Bin Zhu

Research output: Contribution to journalArticlepeer-review

101 Scopus citations

Abstract

In the present work, we report a composite of industrial-grade material LaCePr-oxide (LCP) and perovskite La0.6Sr0.4Co0.2Fe0.8O3-δ (LSCF) for advanced electrolyte layer-free fuel cells (EFFCs). The microstructure, morphology, and electrical properties of the LCP, LSCF, and LCP-LSCF composite were investigated and characterized by XRD, SEM, EDS, TEM, and EIS. Various ratios of LCP to LSCF in the composite were modulated to achieve balanced ionic and electronic conductivities. Fuel cell with an optimum ratio of 60 wt% LCP to 40 wt% LSCF reached the highest open circuit voltage (OCV) at 1.01 V and a maximum power density of 745 mW cm-2 at 575°C, also displaying a good performance stability. The high performance is attributed to the interfacial mechanisms and electrode catalytic effects. The findings from the present study promote industrial-grade rare-earth oxide as a promising new material for innovative low temperature solid oxide fuel cell (LTSOFC) technology.

Original languageEnglish
Pages (from-to)270-279
Number of pages10
JournalJournal of Power Sources
Volume307
DOIs
StatePublished - 1 Mar 2016
Externally publishedYes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Keywords

  • Electrolyte layer-free fuel cell
  • Industrial-grade material
  • LaCePr-oxide (LCP)
  • LaSrCoFeO (LSCF)
  • Mixed conductor composite

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