Hydrothermal Synthesis, Characterization, and Sintering Behavior of Core-Shell Particles: A Principle Study on Lanthanum Strontium Cobaltite Coated with Nanosized Gadolinium Doped Ceria

Yu Xu, Philipp Zielke, Ngo Van Nong, Stéven Pirou, Raquel Reolon, Xiaoqing Si, Søren Bredmose Simonsen, Poul Norby, Henning Lühmann, Wolfgang Bensch, Ragnar Kiebach*

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

In this work, nanostructured (La0.6Sr0.4)0.99CoO3 (LSC)-Ce0.8Gd0.2O1.9 (CGO) core-shell particles were prepared by precipitating CGO nanoparticles on the surface of LSC particles under hydrothermal conditions. The as-prepared core-shell particles were sintered by spark plasma sintering (SPS) and conventional sintering, and the microstructure evolution and densification behavior were studied. Dense microstructures were reached using both sintering methods at relatively low temperatures. In the case of SPS, the core-shell architecture was partially maintained and nano-structured CGO grains were formed, while conventional sintering led to the formation of larger CGO grains. This work covers a detailed characterization of (a) the individual LSC-CGO core-shell particles and (b) the composites after densification.
Original languageEnglish
JournalCeramics
Volume1
Issue number2
Pages (from-to)246-260
ISSN2571-6131
DOIs
Publication statusPublished - 2019

Keywords

  • Hydrothermal
  • Core-shell
  • Lanthanum strontium cobaltite
  • Gadolinium-doped ceria
  • Spark plasma sintering

Cite this

@article{1e2e7d96749d4933b65b11caaf9d575e,
title = "Hydrothermal Synthesis, Characterization, and Sintering Behavior of Core-Shell Particles: A Principle Study on Lanthanum Strontium Cobaltite Coated with Nanosized Gadolinium Doped Ceria",
abstract = "In this work, nanostructured (La0.6Sr0.4)0.99CoO3 (LSC)-Ce0.8Gd0.2O1.9 (CGO) core-shell particles were prepared by precipitating CGO nanoparticles on the surface of LSC particles under hydrothermal conditions. The as-prepared core-shell particles were sintered by spark plasma sintering (SPS) and conventional sintering, and the microstructure evolution and densification behavior were studied. Dense microstructures were reached using both sintering methods at relatively low temperatures. In the case of SPS, the core-shell architecture was partially maintained and nano-structured CGO grains were formed, while conventional sintering led to the formation of larger CGO grains. This work covers a detailed characterization of (a) the individual LSC-CGO core-shell particles and (b) the composites after densification.",
keywords = "Hydrothermal, Core-shell, Lanthanum strontium cobaltite, Gadolinium-doped ceria, Spark plasma sintering",
author = "Yu Xu and Philipp Zielke and {Van Nong}, Ngo and St{\'e}ven Pirou and Raquel Reolon and Xiaoqing Si and Simonsen, {S{\o}ren Bredmose} and Poul Norby and Henning L{\"u}hmann and Wolfgang Bensch and Ragnar Kiebach",
year = "2019",
doi = "10.3390/ceramics1020020",
language = "English",
volume = "1",
pages = "246--260",
journal = "Ceramics",
issn = "2571-6131",
publisher = "MDPI",
number = "2",

}

Hydrothermal Synthesis, Characterization, and Sintering Behavior of Core-Shell Particles: A Principle Study on Lanthanum Strontium Cobaltite Coated with Nanosized Gadolinium Doped Ceria. / Xu, Yu; Zielke, Philipp; Van Nong, Ngo; Pirou, Stéven; Reolon, Raquel; Si, Xiaoqing ; Simonsen, Søren Bredmose; Norby, Poul; Lühmann, Henning ; Bensch, Wolfgang; Kiebach, Ragnar.

In: Ceramics, Vol. 1, No. 2, 2019, p. 246-260.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Hydrothermal Synthesis, Characterization, and Sintering Behavior of Core-Shell Particles: A Principle Study on Lanthanum Strontium Cobaltite Coated with Nanosized Gadolinium Doped Ceria

AU - Xu, Yu

AU - Zielke, Philipp

AU - Van Nong, Ngo

AU - Pirou, Stéven

AU - Reolon, Raquel

AU - Si, Xiaoqing

AU - Simonsen, Søren Bredmose

AU - Norby, Poul

AU - Lühmann, Henning

AU - Bensch, Wolfgang

AU - Kiebach, Ragnar

PY - 2019

Y1 - 2019

N2 - In this work, nanostructured (La0.6Sr0.4)0.99CoO3 (LSC)-Ce0.8Gd0.2O1.9 (CGO) core-shell particles were prepared by precipitating CGO nanoparticles on the surface of LSC particles under hydrothermal conditions. The as-prepared core-shell particles were sintered by spark plasma sintering (SPS) and conventional sintering, and the microstructure evolution and densification behavior were studied. Dense microstructures were reached using both sintering methods at relatively low temperatures. In the case of SPS, the core-shell architecture was partially maintained and nano-structured CGO grains were formed, while conventional sintering led to the formation of larger CGO grains. This work covers a detailed characterization of (a) the individual LSC-CGO core-shell particles and (b) the composites after densification.

AB - In this work, nanostructured (La0.6Sr0.4)0.99CoO3 (LSC)-Ce0.8Gd0.2O1.9 (CGO) core-shell particles were prepared by precipitating CGO nanoparticles on the surface of LSC particles under hydrothermal conditions. The as-prepared core-shell particles were sintered by spark plasma sintering (SPS) and conventional sintering, and the microstructure evolution and densification behavior were studied. Dense microstructures were reached using both sintering methods at relatively low temperatures. In the case of SPS, the core-shell architecture was partially maintained and nano-structured CGO grains were formed, while conventional sintering led to the formation of larger CGO grains. This work covers a detailed characterization of (a) the individual LSC-CGO core-shell particles and (b) the composites after densification.

KW - Hydrothermal

KW - Core-shell

KW - Lanthanum strontium cobaltite

KW - Gadolinium-doped ceria

KW - Spark plasma sintering

U2 - 10.3390/ceramics1020020

DO - 10.3390/ceramics1020020

M3 - Journal article

VL - 1

SP - 246

EP - 260

JO - Ceramics

JF - Ceramics

SN - 2571-6131

IS - 2

ER -