Highly active Sm0.2Ce0.8O1.9 powders of very low apparent density derived from mixed cerium sources

Meilin Liu; Zhangbo Liu; Dong Ding; Mingfei Liu; Xiaxi Li; Wenping Sun; Changrong Xia

doi:10.1016/j.jpowsour.2012.11.082

Highly active Sm_0.2Ce_0.8O_1.9 powders of very low apparent density derived from mixed cerium sources

Meilin Liu
, Zhangbo Liu
, Dong Ding
, Mingfei Liu
, Xiaxi Li
, Wenping Sun
, Changrong Xia

Energy & Environmental Science & Technology

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

Low apparent density Sm_0.2Ce_0.8O_1.9 (SDC) powders of different morphology and microstructure are derived from a glycine-nitrate process using Ce(NO₃)₃ and Ce(NH ₄)₂(NO₃)₆ as the cerium sources. When the molar ratio of the two cerium precursors is around 1:1, the derived SDC powders can be readily sintered to high density, exhibiting the highest conductivities (∼0.084 and ∼0.020 S cm^-1 at 800 and 600 °C, respectively) with an activation energy of ∼0.70 eV. When the molar ratio of Ce(NO₃)₃ to Ce(NH₄) ₂(NO₃)₆ was adjusted to 3:1, the derived SDC powders have the lowest apparent density (36.0 ± 0.5 mg cm^-3), best suited for preparation of dense, thin-film SDC electrolyte membranes on porous anode substrates, a critical step toward low-cost fabrication of high-performance SOFCs.

Original language	English
Pages (from-to)	277-284
Number of pages	8
Journal	Journal of Power Sources
Volume	229
DOIs	https://doi.org/10.1016/j.jpowsour.2012.11.082
State	Published - 2013

Keywords

Ceria
Electrolyte
Fuel cell
Glycine-nitrate process
Solid oxide fuel cell

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10.1016/j.jpowsour.2012.11.082

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@article{a28774b1ac264f3f8c87c92c5e57df26,

title = "Highly active Sm0.2Ce0.8O1.9 powders of very low apparent density derived from mixed cerium sources",

abstract = "Low apparent density Sm0.2Ce0.8O1.9 (SDC) powders of different morphology and microstructure are derived from a glycine-nitrate process using Ce(NO3)3 and Ce(NH 4)2(NO3)6 as the cerium sources. When the molar ratio of the two cerium precursors is around 1:1, the derived SDC powders can be readily sintered to high density, exhibiting the highest conductivities (∼0.084 and ∼0.020 S cm-1 at 800 and 600 °C, respectively) with an activation energy of ∼0.70 eV. When the molar ratio of Ce(NO3)3 to Ce(NH4) 2(NO3)6 was adjusted to 3:1, the derived SDC powders have the lowest apparent density (36.0 ± 0.5 mg cm-3), best suited for preparation of dense, thin-film SDC electrolyte membranes on porous anode substrates, a critical step toward low-cost fabrication of high-performance SOFCs.",

keywords = "Ceria, Electrolyte, Fuel cell, Glycine-nitrate process, Solid oxide fuel cell",

author = "Meilin Liu and Zhangbo Liu and Dong Ding and Mingfei Liu and Xiaxi Li and Wenping Sun and Changrong Xia",

note = "Funding Information: This material is based upon work supported as part of the Heterogeneous Functional Materials (HetroFoaM) Center , an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Award Number DE-SC0001061. Zhangbo Liu thanks the fellowship support by the China Scholarship Council.",

year = "2013",

doi = "10.1016/j.jpowsour.2012.11.082",

language = "English",

volume = "229",

pages = "277--284",

journal = "Journal of Power Sources",

issn = "0378-7753",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Highly active Sm0.2Ce0.8O1.9 powders of very low apparent density derived from mixed cerium sources

AU - Liu, Meilin

AU - Liu, Zhangbo

AU - Ding, Dong

AU - Liu, Mingfei

AU - Li, Xiaxi

AU - Sun, Wenping

AU - Xia, Changrong

N1 - Funding Information: This material is based upon work supported as part of the Heterogeneous Functional Materials (HetroFoaM) Center , an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Award Number DE-SC0001061. Zhangbo Liu thanks the fellowship support by the China Scholarship Council.

PY - 2013

Y1 - 2013

N2 - Low apparent density Sm0.2Ce0.8O1.9 (SDC) powders of different morphology and microstructure are derived from a glycine-nitrate process using Ce(NO3)3 and Ce(NH 4)2(NO3)6 as the cerium sources. When the molar ratio of the two cerium precursors is around 1:1, the derived SDC powders can be readily sintered to high density, exhibiting the highest conductivities (∼0.084 and ∼0.020 S cm-1 at 800 and 600 °C, respectively) with an activation energy of ∼0.70 eV. When the molar ratio of Ce(NO3)3 to Ce(NH4) 2(NO3)6 was adjusted to 3:1, the derived SDC powders have the lowest apparent density (36.0 ± 0.5 mg cm-3), best suited for preparation of dense, thin-film SDC electrolyte membranes on porous anode substrates, a critical step toward low-cost fabrication of high-performance SOFCs.

AB - Low apparent density Sm0.2Ce0.8O1.9 (SDC) powders of different morphology and microstructure are derived from a glycine-nitrate process using Ce(NO3)3 and Ce(NH 4)2(NO3)6 as the cerium sources. When the molar ratio of the two cerium precursors is around 1:1, the derived SDC powders can be readily sintered to high density, exhibiting the highest conductivities (∼0.084 and ∼0.020 S cm-1 at 800 and 600 °C, respectively) with an activation energy of ∼0.70 eV. When the molar ratio of Ce(NO3)3 to Ce(NH4) 2(NO3)6 was adjusted to 3:1, the derived SDC powders have the lowest apparent density (36.0 ± 0.5 mg cm-3), best suited for preparation of dense, thin-film SDC electrolyte membranes on porous anode substrates, a critical step toward low-cost fabrication of high-performance SOFCs.

KW - Ceria

KW - Electrolyte

KW - Fuel cell

KW - Glycine-nitrate process

KW - Solid oxide fuel cell

UR - https://www.scopus.com/pages/publications/84872133880

U2 - 10.1016/j.jpowsour.2012.11.082

DO - 10.1016/j.jpowsour.2012.11.082

M3 - Article

AN - SCOPUS:84872133880

SN - 0378-7753

VL - 229

SP - 277

EP - 284

JO - Journal of Power Sources

JF - Journal of Power Sources

ER -

Highly active Sm_0.2Ce_0.8O_1.9 powders of very low apparent density derived from mixed cerium sources

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