Preparation of highly porous NiO-gadolinium-doped ceria nano-composite powders by one-pot glycine nitrate process for anode-supported tubular solid oxide fuel cells

Seung Young Park, Chan Woong Na, Jee Hyun Ahn, Rak Hyun Song, Jong Heun Lee

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Highly porous NiO-gadolinium-doped ceria (GDC) nano-composite powders are synthesized by a one-pot glycine nitrate process and applied to the fabrication of Ni-YSZ (yttria-stabilized zirconia)-supported tubular solid oxide fuel cells (SOFCs) with a cell configuration of Ni-YSZ/Ni/Ni-GDC/GDC/LSCF (La0.6Sr0.4Co0.2Fe0.8O3-δ)-GDC/LSCF. The power density of the cell is as high as 413mWcm-2 at 600°C, which is 1.37 times higher than that of an identically configured cell fabricated using ball milling-derived NiO-GDC powders (301mWcm-2). The high porosity of the powders and the good mixing between the NiO and GDC primary nanoparticles due to the abrupt combustion of the precursors effectively suppress the densification, coarsening, and agglomeration of NiO and GDC particles during sintering, resulting in a highly porous Ni-GDC anode layer with good dispersion of Ni and GDC particles and a cell with significantly enhanced power density.

Original languageEnglish
Pages (from-to)339-346
Number of pages8
JournalJournal of Asian Ceramic Societies
Volume2
Issue number4
DOIs
Publication statusPublished - 2014 Dec 1

Keywords

  • Gadolinium-doped ceria
  • Glycine nitrate process
  • Nickel-gadolinium-doped ceria
  • Solid oxide fuel cell
  • Tubular solid oxide fuel cell

ASJC Scopus subject areas

  • Ceramics and Composites

Fingerprint Dive into the research topics of 'Preparation of highly porous NiO-gadolinium-doped ceria nano-composite powders by one-pot glycine nitrate process for anode-supported tubular solid oxide fuel cells'. Together they form a unique fingerprint.

  • Cite this