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

Fingerprint

Gadolinium
Cerium compounds
Solid oxide fuel cells (SOFC)
Nitrates
Powders
Glycine
Amino acids
Anodes
Composite materials
Yttria stabilized zirconia
Ball milling
Coarsening
Densification
Sintering
Agglomeration
Porosity
Nanoparticles
Fabrication

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

Cite this

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

In: Journal of Asian Ceramic Societies, Vol. 2, No. 4, 01.12.2014, p. 339-346.

Research output: Contribution to journalArticle

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AU - Lee, Jong Heun

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