A LaNi0.9Co0.1O3 coated Ce0.8Sm0.2O1.9 composite anode for solid oxide fuel cells fed with methanol

Tian Gan, Guochang Ding, Xiaojing Zhi, Lijun Fan, Nianjun Hou, Xueli Yao, Ping Li, Yicheng Zhao*, Yongdan Li

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

5 Citations (Scopus)

Abstract

Ce0.8Sm0.2O1.9 (SDC) powder is impregnated with LaNi0.9Co0.1O3 (LNC) to form a composite anode for solid oxide fuel cells with methanol as fuel. Nanoparticles of Ni-Co alloy are derived from LNC after reduction. The composite anode shows a sufficient electrical conductivity when the weight ratio of Ni to SDC reaches 0.1, which is much lower than the amount of Ni required in conventional Ni-SDC anodes. The aggregation of Ni-Co nanoparticles in the reduced anode is suppressed by the oxide supporter, resulting in an improved catalytic activity. The single cell with LNC-SDC composite anode and SDC-carbonate composite electrolyte exhibits a maximum power density of 872 mW cm−2 at 700 °C with gasified methanol as the fuel, much higher than that of the cell with a NiCo-SDC anode under the same condition. The amount of carbon deposited on the anode in methanol atmosphere decreases with the decline of the LNC content. The cells with LNC-SDC composite anodes exhibit stable performances during a 500-minute discharge period.

Original languageEnglish
Pages (from-to)220-225
Number of pages6
JournalCatalysis Today
Volume327
Early online date27 Apr 2018
DOIs
Publication statusPublished - 1 May 2019
MoE publication typeA1 Journal article-refereed

Keywords

  • Anode
  • Impregnation
  • Lanthanum nickelate
  • Methanol
  • Solid oxide fuel cell
  • HIGH-PERFORMANCE
  • OXIDATION
  • CATHODES
  • EXSOLUTION
  • CATALYST
  • NANOPARTICLES
  • TEMPERATURE
  • NI-YSZ
  • CARBON DEPOSITION
  • ELECTROCHEMICAL PERFORMANCE

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