Aqueous tape casting of 10 mol%-Gd2O3-doped CeO2 nano-particles

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

doi:10.1016/j.msea.2006.05.073

Aqueous tape casting of 10 mol%-Gd₂O₃-doped CeO₂ nano-particles

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

^*Corresponding author for this work

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

43 Citations (Scopus)

Abstract

The aqueous tape casting process was systematically developed and investigated for the tape casting of 10 mol%-Gd₂O₃-doped CeO₂ nano-particles. This study focused on obtaining the optimum slurry formulations and on the effects of the processing parameters such as the stability, the rheology and the wetting properties on the tape characteristics. High solid loading (55 vol.%) and stable slurries of 10GDC nano-particles were achieved using poly(acrylic acid) (PAA) as a dispersant; poly(vinyl alcohol) (PVA) as a binder; poly(ethylene glycol) (PEG) as a plasticizer; octanol as a defoamer and 2,4,7,9-tetramethyl-5-decyne-4,7-diol ethoxylate as a surfactant. The pH values of the slurries were maintained in the range of 9.0-10.0. Homogeneous, defect-free green tapes (thickness 150-200 μm) with smooth surface and high relative green density (51.5%) were thus successfully obtained. © 2006 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	266-271
Journal	Materials Science and Engineering A
Volume	429
Issue number	1-2
Online published	27 Jun 2006
DOIs	https://doi.org/10.1016/j.msea.2006.05.073
Publication status	Published - 15 Aug 2006
Externally published	Yes

Funding

We are thankful to Advanced Materials Resource, Ltd. (Canada) for supplying the 10GDC nano-particles and their continued support in this project.

UN SDGs

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

SDG 7 Affordable and Clean Energy

Research Keywords

10GDC
Aqueous tape casting
Fuel cells
Nano-particles

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10.1016/j.msea.2006.05.073

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Cite this

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title = "Aqueous tape casting of 10 mol\%-Gd2O3-doped CeO2 nano-particles",

abstract = "The aqueous tape casting process was systematically developed and investigated for the tape casting of 10 mol\%-Gd2O3-doped CeO2 nano-particles. This study focused on obtaining the optimum slurry formulations and on the effects of the processing parameters such as the stability, the rheology and the wetting properties on the tape characteristics. High solid loading (55 vol.\%) and stable slurries of 10GDC nano-particles were achieved using poly(acrylic acid) (PAA) as a dispersant; poly(vinyl alcohol) (PVA) as a binder; poly(ethylene glycol) (PEG) as a plasticizer; octanol as a defoamer and 2,4,7,9-tetramethyl-5-decyne-4,7-diol ethoxylate as a surfactant. The pH values of the slurries were maintained in the range of 9.0-10.0. Homogeneous, defect-free green tapes (thickness 150-200 μm) with smooth surface and high relative green density (51.5\%) were thus successfully obtained. {\textcopyright} 2006 Elsevier B.V. All rights reserved.",

keywords = "10GDC, Aqueous tape casting, Fuel cells, Nano-particles",

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

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AU - Tok, A. I. Y.

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PY - 2006/8/15

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N2 - The aqueous tape casting process was systematically developed and investigated for the tape casting of 10 mol%-Gd2O3-doped CeO2 nano-particles. This study focused on obtaining the optimum slurry formulations and on the effects of the processing parameters such as the stability, the rheology and the wetting properties on the tape characteristics. High solid loading (55 vol.%) and stable slurries of 10GDC nano-particles were achieved using poly(acrylic acid) (PAA) as a dispersant; poly(vinyl alcohol) (PVA) as a binder; poly(ethylene glycol) (PEG) as a plasticizer; octanol as a defoamer and 2,4,7,9-tetramethyl-5-decyne-4,7-diol ethoxylate as a surfactant. The pH values of the slurries were maintained in the range of 9.0-10.0. Homogeneous, defect-free green tapes (thickness 150-200 μm) with smooth surface and high relative green density (51.5%) were thus successfully obtained. © 2006 Elsevier B.V. All rights reserved.

AB - The aqueous tape casting process was systematically developed and investigated for the tape casting of 10 mol%-Gd2O3-doped CeO2 nano-particles. This study focused on obtaining the optimum slurry formulations and on the effects of the processing parameters such as the stability, the rheology and the wetting properties on the tape characteristics. High solid loading (55 vol.%) and stable slurries of 10GDC nano-particles were achieved using poly(acrylic acid) (PAA) as a dispersant; poly(vinyl alcohol) (PVA) as a binder; poly(ethylene glycol) (PEG) as a plasticizer; octanol as a defoamer and 2,4,7,9-tetramethyl-5-decyne-4,7-diol ethoxylate as a surfactant. The pH values of the slurries were maintained in the range of 9.0-10.0. Homogeneous, defect-free green tapes (thickness 150-200 μm) with smooth surface and high relative green density (51.5%) were thus successfully obtained. © 2006 Elsevier B.V. All rights reserved.

KW - 10GDC

KW - Aqueous tape casting

KW - Fuel cells

KW - Nano-particles

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