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

Title
Highly controlled thermal behavior of a conjugated gadolinia-doped ceria nanoparticles synthesized by particle-dispersed glycine-nitrate process
Authors
이해원김병국이종호김형철손지원윤경중홍종섭박만수이승환신동욱
Keywords
Gadolinia-doped ceria; Glycine-nitrate process; Sintering; Nanoparticle; Solid oxide fuel cell
Issue Date
2017-05
Publisher
Journal of the European Ceramic Society
Citation
VOL 37, NO 5-2168
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.
URI
https://pubs.kist.re.kr/handle/201004/65411
ISSN
0955-2219
Appears in Collections:
KIST Publication > Article
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