Carbonate Co-precipatatioin of Gd2O3-doped CeO2 solid solution nano-particles

A. I. Y. Tok; L. H. Luo; F. Y. C. Boey

doi:10.1016/j.msea.2004.05.071

Carbonate Co-precipatatioin of Gd₂O₃-doped CeO₂ solid solution nano-particles

A. I. Y. Tok^*, L. H. Luo, F. Y. C. Boey

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

209 Citations (Scopus)

Abstract

This paper reports on the synthesis of 20 mol% Gd₂O₃-doped CeO₂ solid solution (20 GDC) nano-particles via carbonate co-precipitation. Precursors and calcined particles were characterized using TGA, XRD, BET, FESEM, and TEM. From the diffraction pattern using XRD with TEM, it was shown that the Gd³⁺ replaced the Ce⁴⁺ lattice in the fluorite structure (FCC) of CeO₂, as opposed to it being a second phase in the CeO₂ structure. The 20 GDC particles were calcined at 700° C for 2 h, and sintered to >99% density at a very low sintering temperature of 1150° C for 4 h. © 2004 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	229-234
Journal	Materials Science and Engineering A
Volume	383
Issue number	2
Online published	6 Aug 2004
DOIs	https://doi.org/10.1016/j.msea.2004.05.071
Publication status	Published - 15 Oct 2004
Externally published	Yes

Research Keywords

Carbonate co-precipitation
Gd2O3-doped CeO2
Microstructure
Nano-particles
Solid oxide fuel cells
Solid solution

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access Output

10.1016/j.msea.2004.05.071

Other Access Options

Check CityUHK Library

Permanent Link

Right click to copy link

Cite this

@article{f413bd9183674d71a1b1ec28f7b4f9cc,

title = "Carbonate Co-precipatatioin of Gd2O3-doped CeO2 solid solution nano-particles",

abstract = "This paper reports on the synthesis of 20 mol% Gd2O3-doped CeO2 solid solution (20 GDC) nano-particles via carbonate co-precipitation. Precursors and calcined particles were characterized using TGA, XRD, BET, FESEM, and TEM. From the diffraction pattern using XRD with TEM, it was shown that the Gd3+ replaced the Ce4+ lattice in the fluorite structure (FCC) of CeO2, as opposed to it being a second phase in the CeO2 structure. The 20 GDC particles were calcined at 700° C for 2 h, and sintered to >99% density at a very low sintering temperature of 1150° C for 4 h. {\textcopyright} 2004 Elsevier B.V. All rights reserved.",

keywords = "Carbonate co-precipitation, Gd2O3-doped CeO2, Microstructure, Nano-particles, Solid oxide fuel cells, Solid solution",

author = "Tok, {A. I. Y.} and Luo, {L. H.} and Boey, {F. Y. C.}",

year = "2004",

month = oct,

day = "15",

doi = "10.1016/j.msea.2004.05.071",

language = "English",

volume = "383",

pages = "229--234",

journal = "Materials Science and Engineering A",

issn = "0921-5093",

publisher = "Elsevier Ltd.",

number = "2",

}

TY - JOUR

T1 - Carbonate Co-precipatatioin of Gd2O3-doped CeO2 solid solution nano-particles

AU - Tok, A. I. Y.

AU - Luo, L. H.

AU - Boey, F. Y. C.

PY - 2004/10/15

Y1 - 2004/10/15

N2 - This paper reports on the synthesis of 20 mol% Gd2O3-doped CeO2 solid solution (20 GDC) nano-particles via carbonate co-precipitation. Precursors and calcined particles were characterized using TGA, XRD, BET, FESEM, and TEM. From the diffraction pattern using XRD with TEM, it was shown that the Gd3+ replaced the Ce4+ lattice in the fluorite structure (FCC) of CeO2, as opposed to it being a second phase in the CeO2 structure. The 20 GDC particles were calcined at 700° C for 2 h, and sintered to >99% density at a very low sintering temperature of 1150° C for 4 h. © 2004 Elsevier B.V. All rights reserved.

AB - This paper reports on the synthesis of 20 mol% Gd2O3-doped CeO2 solid solution (20 GDC) nano-particles via carbonate co-precipitation. Precursors and calcined particles were characterized using TGA, XRD, BET, FESEM, and TEM. From the diffraction pattern using XRD with TEM, it was shown that the Gd3+ replaced the Ce4+ lattice in the fluorite structure (FCC) of CeO2, as opposed to it being a second phase in the CeO2 structure. The 20 GDC particles were calcined at 700° C for 2 h, and sintered to >99% density at a very low sintering temperature of 1150° C for 4 h. © 2004 Elsevier B.V. All rights reserved.

KW - Carbonate co-precipitation

KW - Gd2O3-doped CeO2

KW - Microstructure

KW - Nano-particles

KW - Solid oxide fuel cells

KW - Solid solution

UR - http://www.scopus.com/inward/record.url?scp=11144268016&partnerID=8YFLogxK

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-11144268016&origin=recordpage

U2 - 10.1016/j.msea.2004.05.071

DO - 10.1016/j.msea.2004.05.071

M3 - RGC 21 - Publication in refereed journal

SN - 0921-5093

VL - 383

SP - 229

EP - 234

JO - Materials Science and Engineering A

JF - Materials Science and Engineering A

IS - 2

ER -