Preparation of LSGM powders for low temperature sintering

Pyeong Seok Cho; Seung Young Park; Yoon Ho Cho; Sun Jung Kim; Yun Chan Kang; Toshiyuki Mori; Jong Heun Lee

doi:10.1016/j.ssi.2008.12.040

Preparation of LSGM powders for low temperature sintering

Pyeong Seok Cho, Seung Young Park, Yoon Ho Cho, Sun Jung Kim, Yun Chan Kang, Toshiyuki Mori, Jong Heun Lee

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

18 Citations (Scopus)

Abstract

La_0.8Sr_0.2Ga_0.8Mg_0.2O_2.8 powders were prepared by carbonate coprecipitation and the tuning of the cation composition by a solid state reaction. The relative compositions of La, Sr, Ga, and Mg were dependent upon the supersaturation ratio (R = [(NH₄)₂CO₃]/([La³⁺] + [Sr²⁺] + [Ga³⁺] + [Mg²⁺])) during the coprecipitation. The coprecipitation of a Sr-deficient source solution and the subsequent replenishment of SrO and MgO by ball milling were effective for accomplishing a phase-pure La_0.8Sr_0.2Ga_0.8Mg_0.2O_2.8 specimen by low-temperature sintering.

Original language	English
Pages (from-to)	788-791
Number of pages	4
Journal	Solid State Ionics
Volume	180
Issue number	11-13
DOIs	https://doi.org/10.1016/j.ssi.2008.12.040
Publication status	Published - 2009 Jun 22

Keywords

Carbonate coprecipitation
Low-temperature sintering
Solid oxide fuel cell
Sr- and Mg-doped lanthanum gallate (LSGM)

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

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title = "Preparation of LSGM powders for low temperature sintering",

abstract = "La0.8Sr0.2Ga0.8Mg0.2O2.8 powders were prepared by carbonate coprecipitation and the tuning of the cation composition by a solid state reaction. The relative compositions of La, Sr, Ga, and Mg were dependent upon the supersaturation ratio (R = [(NH4)2CO3]/([La3+] + [Sr2+] + [Ga3+] + [Mg2+])) during the coprecipitation. The coprecipitation of a Sr-deficient source solution and the subsequent replenishment of SrO and MgO by ball milling were effective for accomplishing a phase-pure La0.8Sr0.2Ga0.8Mg0.2O2.8 specimen by low-temperature sintering.",

keywords = "Carbonate coprecipitation, Low-temperature sintering, Solid oxide fuel cell, Sr- and Mg-doped lanthanum gallate (LSGM)",

author = "Cho, {Pyeong Seok} and Park, {Seung Young} and Cho, {Yoon Ho} and Kim, {Sun Jung} and Kang, {Yun Chan} and Toshiyuki Mori and Lee, {Jong Heun}",

year = "2009",

month = jun,

day = "22",

doi = "10.1016/j.ssi.2008.12.040",

language = "English",

volume = "180",

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journal = "Solid State Ionics",

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number = "11-13",

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TY - JOUR

T1 - Preparation of LSGM powders for low temperature sintering

AU - Cho, Pyeong Seok

AU - Park, Seung Young

AU - Cho, Yoon Ho

AU - Kim, Sun Jung

AU - Kang, Yun Chan

AU - Mori, Toshiyuki

AU - Lee, Jong Heun

PY - 2009/6/22

Y1 - 2009/6/22

N2 - La0.8Sr0.2Ga0.8Mg0.2O2.8 powders were prepared by carbonate coprecipitation and the tuning of the cation composition by a solid state reaction. The relative compositions of La, Sr, Ga, and Mg were dependent upon the supersaturation ratio (R = [(NH4)2CO3]/([La3+] + [Sr2+] + [Ga3+] + [Mg2+])) during the coprecipitation. The coprecipitation of a Sr-deficient source solution and the subsequent replenishment of SrO and MgO by ball milling were effective for accomplishing a phase-pure La0.8Sr0.2Ga0.8Mg0.2O2.8 specimen by low-temperature sintering.

AB - La0.8Sr0.2Ga0.8Mg0.2O2.8 powders were prepared by carbonate coprecipitation and the tuning of the cation composition by a solid state reaction. The relative compositions of La, Sr, Ga, and Mg were dependent upon the supersaturation ratio (R = [(NH4)2CO3]/([La3+] + [Sr2+] + [Ga3+] + [Mg2+])) during the coprecipitation. The coprecipitation of a Sr-deficient source solution and the subsequent replenishment of SrO and MgO by ball milling were effective for accomplishing a phase-pure La0.8Sr0.2Ga0.8Mg0.2O2.8 specimen by low-temperature sintering.

KW - Carbonate coprecipitation

KW - Low-temperature sintering

KW - Solid oxide fuel cell

KW - Sr- and Mg-doped lanthanum gallate (LSGM)

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JO - Solid State Ionics

JF - Solid State Ionics

SN - 0167-2738

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