A novel, in situ analytical technique: Probing oxygen transport phenomena of various metal oxides for solid oxide fuel cells

Jaeyune Ryu, Jihoon Jeong, Yongmin Kim, Yeongcheon Kim, Sung Pil Yoon, SukWoo Nam, Chang Won Yoon

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Metal oxides with perovskite or fluorite structure have been widely used for anode, cathode and electrolyte for solid oxide fuel cells (SOFCs). Understanding of defect chemistry occurred at a SOFC component is of great importance because physical properties of these materials depend on their non-stoichiometry. In this context, a real-time monitoring technique to probe oxygen transport phenomena is beneficial to design nextgeneration SOFC materials. In this contribution, we developed a combined system utilizing thermogravimetric analyzer and a 4 probe electrical conductivity measurement, which provides useful information about changes in weight of a material (e.g., Ceria and a perovskite) simultaneously along with its electrical conductivity. Applicability of this newly developed monitoring system for a number of SOFC materials will be discussed.

Original languageEnglish
Title of host publicationEFC 2013 - Proceedings of the 5th European Fuel Cell Piero Lunghi Conference
PublisherENEA
Pages315-316
Number of pages2
ISBN (Print)9788882862978
Publication statusPublished - 2013
Event5th European Fuel Cell Piero Lunghi Conference and Exhibition, EFC 2013 - Rome, Italy
Duration: 2013 Dec 112013 Dec 13

Other

Other5th European Fuel Cell Piero Lunghi Conference and Exhibition, EFC 2013
CountryItaly
CityRome
Period13/12/1113/12/13

Keywords

  • Electrical conductivity
  • Metal oxide
  • Perovskite
  • Thermalgravimetric analysis

ASJC Scopus subject areas

  • Fuel Technology

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