Highly controlled thermal behavior of a conjugated gadolinia-doped ceria nanoparticles synthesized by particle-dispersed glycine-nitrate process

Seunghwan Lee, Dong Wook Shin, Mansoo Park, Jongsup Hong, Hyoungchul Kim, Ji Won Son, Jong Ho Lee, Byung Kook Kim, Hae Weon Lee, Kyung Joong Yoon

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Gadolinia-doped ceria (GDC) has emerged as one of the most essential component materials for next-generation solid oxide fuel cells (SOFCs). The refractory nature of GDC has been a major hurdle for its successful implementation, and precise control of the thermal behavior is crucial. Here, we report a particle-dispersed glycine-nitrate process (PD-GNP) that leads to the formation of fast-sintering nanoparticles uniformly conjugated to the surface of slow-sintering inclusion particles. The independent regulation of nanoparticles and sintering aids based on in situ co-assembly process enables precise control over the individual stages of the sintering process and grain growth, resulting in complete densification at desired temperatures. This work highlights a simple and cost-effective way to produce exquisitely tailored GDC nanopowder for specific purposes in the manufacturing of SOFCs; furthermore, it expands opportunities to effectively exploit nanotechnology in the fabrication of a wide range of multilayer ceramic devices.

Original languageEnglish
Pages (from-to)2159-2168
Number of pages10
JournalJournal of the European Ceramic Society
Volume37
Issue number5
DOIs
StatePublished - 2017 May 1

Fingerprint

Gadolinium
Cerium compounds
Nitrates
Glycine
Amino acids
Sintering
Nanoparticles
Solid oxide fuel cells (SOFC)
Grain growth
Densification
Nanotechnology
Refractory materials
Multilayers
Fabrication
Hot Temperature
gadolinium oxide
Costs
Temperature

Keywords

  • Gadolinia-doped ceria
  • Glycine-nitrate process
  • Nanoparticle
  • Sintering
  • Solid oxide fuel cell

Cite this

Lee, Seunghwan ; Shin, Dong Wook ; Park, Mansoo ; Hong, Jongsup ; Kim, Hyoungchul ; Son, Ji Won ; Lee, Jong Ho ; Kim, Byung Kook ; Lee, Hae Weon ; Yoon, Kyung Joong. / Highly controlled thermal behavior of a conjugated gadolinia-doped ceria nanoparticles synthesized by particle-dispersed glycine-nitrate process. In: Journal of the European Ceramic Society. 2017 ; Vol. 37, No. 5. pp. 2159-2168.
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Highly controlled thermal behavior of a conjugated gadolinia-doped ceria nanoparticles synthesized by particle-dispersed glycine-nitrate process. / Lee, Seunghwan; Shin, Dong Wook; Park, Mansoo; Hong, Jongsup; Kim, Hyoungchul; Son, Ji Won; Lee, Jong Ho; Kim, Byung Kook; Lee, Hae Weon; Yoon, Kyung Joong.

In: Journal of the European Ceramic Society, Vol. 37, No. 5, 01.05.2017, p. 2159-2168.

Research output: Contribution to journalArticle

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