A robust NiO-Sm0.2Ce0.8O1.9 anode for direct-methane solid oxide fuel cell

Dong Tian, Wei Liu, Yonghong Chen, Weili Yu, Lianghao Yu, Lin Bin

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

In order to directly use methane without a reforming process, NiO-Sm0.2Ce0.8O1.9 (NiO-SDC) nanocomposite anode are successfully synthesized via a one-pot, surfactant-assisted co-assembly approach for direct-methane solid oxide fuel cells. Both NiO with cubic phase and SDC with fluorite phase are obtained at 550 °C. Both NiO nanoparticles and SDC nanoparticles are highly monodispersed in size with nearly spherical shapes. Based on the as-synthesized NiO-SDC, two kinds of single cells with different micro/macro-porous structure are successfully fabricated. As a result, the cell performance was improved by 40%-45% with the new double-pore NiO-SDC anode relative to the cell performance with the conventional NiO-SDC anode due to a wider triple-phase-boundary (TPB) area. In addition, no significant degradation of the cell performance was observed after 60 hours, which means an increasing of long term stability. Therefore, the as-synthesized NiO-SDC nanocomposite is a promising anode for direct-methane solid oxide fuel cells.
Original languageEnglish (US)
Pages (from-to)1-6
Number of pages6
JournalMaterials Research Bulletin
Volume71
DOIs
StatePublished - Jul 4 2015

ASJC Scopus subject areas

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

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