Pr2NiO4+d for cathode in protonic ceramic fuel cells

Hyegsoon An, Dongwook Shin, Ho Il Ji

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

To improve the polarization property of cathodes, which is the main factor limiting the performance of protonic ceramic fuel cells (PCFCs), K2NiF4-type Pr2NiO4+d, which is expected to exhibit a triple conducting property (proton, oxygen ion, and hole conductions) was applied to PCFCs and its properties were investigated. Low-temperature microwave heat-treatment was used to achieve both sufficient interface adhesion between the electrolyte and the cathode layers and suppression of the secondary phase formation due to migration of elements such as barium and cerium. Through this fabrication method, a high performance of 0.82 Wcm-2 and low ohmic resistance of 0.06 Ȯcm2 were obtained in an Ni-BaCe0.55Zr0.3Y0.15O3-d | BaCe0.55Zr0.3Y0.15O3-d | Pr2NiO4+d single cell at 650oC. This result verifies that the K2NiF4+d-type cathode shows good chemical compatibility which, in turn, will make it a potent candidate as a PCFC cathode.

Original languageEnglish
Pages (from-to)358-363
Number of pages6
JournalJournal of the Korean Ceramic Society
Volume55
Issue number4
DOIs
StatePublished - 2018 Jul

Fingerprint

Protonic ceramic fuel cells (PCFC)
Cathodes
Cerium
Acoustic impedance
Barium
Electrolytes
Protons
Adhesion
Heat treatment
Microwaves
Ions
Polarization
Oxygen
Fabrication

Keywords

  • Cathode
  • Microwave sintering
  • Proton ceramic fuel cells

Cite this

An, Hyegsoon ; Shin, Dongwook ; Ji, Ho Il. / Pr2NiO4+d for cathode in protonic ceramic fuel cells. In: Journal of the Korean Ceramic Society. 2018 ; Vol. 55, No. 4. pp. 358-363.
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Pr2NiO4+d for cathode in protonic ceramic fuel cells. / An, Hyegsoon; Shin, Dongwook; Ji, Ho Il.

In: Journal of the Korean Ceramic Society, Vol. 55, No. 4, 07.2018, p. 358-363.

Research output: Contribution to journalArticle

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AU - Ji, Ho Il

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