Novel cathodes consisting of la3ni2o7+δ mixed with ba0.5sr0.5co0.8fe0.2o3-δ for proton-conductive solid oxide fuel cells (p-sofcs)

Hung Ghun Ding, Wei Sun, Jing Chie Lin, Sheng Wei Lee, Jason Shian Ching Jang, I. Ming Hung, Kai Ti Hsu, Kan Rong Lee

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This work studied on the development of novel cathodes for proton-conductive solid oxide fuel cells (p-SOFCs) made of powders La3Ni2O7+δ (LNO2) mixed with Ba0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF). The cathodes were constructed by a skeleton of LNO2 whose surface coated by BSCF in the ratio (in wt.%) of LNO2/BSCF varying in 15/85, 30/70, 50/50, 75/25 (denote as LN15, LN30, LN50, and LN75, respectively). The skeleton was responsible for carrier conduction and air transportation; the BSCF coating was responsible for catalytic oxygen reduction reaction (ORR). Nascent powders directly collected from combustion were subject to examination by scanning electron microscope (SEM) and X-ray diffractometer (XRD) and further calcination. Well crystalized with highly pure powders obtained post their calcination at 900 °C. Performing the button cells by means of I-V testing at 600, 700 and 800°C, the data of maximum power density (Pm) depicted the order LN75 < BSCF < LN15 < LN30< LN50 regardless of temperatures. Among all the specimens, LN50 could be the best cathode candidate for P-SOFCs.

Original languageEnglish
Title of host publicationFunctional Materials and Metallurgy III
EditorsAlexander Pesin, Mikio Ito
PublisherTrans Tech Publications Ltd
Pages67-72
Number of pages6
ISBN (Print)9783035716627
StatePublished - 2020
Event4th International Conference on Functional Materials and Metallurgy, ICFMM 2019 - Osaka, Japan
Duration: 27 Nov 201930 Nov 2019

Publication series

NameSolid State Phenomena
Volume304 SSP
ISSN (Print)1012-0394
ISSN (Electronic)1662-9779

Conference

Conference4th International Conference on Functional Materials and Metallurgy, ICFMM 2019
Country/TerritoryJapan
CityOsaka
Period27/11/1930/11/19

Keywords

  • Barium Strontium Cobalt Ferrite
  • Combustion Process
  • Lanthanum Nickel Oxide
  • Novel Cathode
  • Proton-Conductive Solid Oxide Fuel Cells

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