Electrical properties of atmospheric plasma-sprayed La 10(SiO 4) 6O 3 electrolyte coatings

Wei Gao; Wen Ya Li; Han Lin Liao; Christian Coddet

doi:10.1007/s11666-011-9625-1

Electrical properties of atmospheric plasma-sprayed La ₁₀(SiO ₄) ₆O ₃ electrolyte coatings

Wei Gao
, Wen Ya Li
, Han Lin Liao
, Christian Coddet

School of Materials Sience and Engineering

Jilin University
Université de technologie de Belfort Montbéliard

Research output: Contribution to journal › Review article › peer-review

8 Scopus citations

Abstract

In this present work, La ₁₀(SiO ₄) ₆O ₃ as a promising electrolyte candidate for intermediate temperature solid oxide fuel cells (IT-SOFCs) has been synthesized and its electrical property was investigated as a function of temperature. In order to improve the density and oxide ion conductivity of La ₁₀(SiO ₄) ₆O ₃, the feedstock powder was prepared by sintering the oxide mixture powders at proper sintering temperatures and times. The hexagonal apatite-type ceramic coatings with a typical composition of La ₁₀(SiO ₄) ₆O ₃ were deposited by atmospheric plasma spraying (APS) with different hydrogen flow rates. With increasing hydrogen flow rate oxide ion conductivity successively decreases. The highest ionic conductivity of the dense composite electrolyte coatings reaches a value of 2.4 mS/cm at 900 °C in air, which is comparable to other apatite-type lanthanum silicate (ATLS) conductors.

Original language	English
Pages (from-to)	888-891
Number of pages	4
Journal	Journal of Thermal Spray Technology
Volume	20
Issue number	4
DOIs	https://doi.org/10.1007/s11666-011-9625-1
State	Published - Jun 2011

Keywords

apatite-type lanthanum silicate coating
atmospheric plasma spraying
intermediate temperature solid oxide fuel cells
oxide ion conductivity

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10.1007/s11666-011-9625-1

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title = "Electrical properties of atmospheric plasma-sprayed La 10(SiO 4) 6O 3 electrolyte coatings",

abstract = "In this present work, La 10(SiO 4) 6O 3 as a promising electrolyte candidate for intermediate temperature solid oxide fuel cells (IT-SOFCs) has been synthesized and its electrical property was investigated as a function of temperature. In order to improve the density and oxide ion conductivity of La 10(SiO 4) 6O 3, the feedstock powder was prepared by sintering the oxide mixture powders at proper sintering temperatures and times. The hexagonal apatite-type ceramic coatings with a typical composition of La 10(SiO 4) 6O 3 were deposited by atmospheric plasma spraying (APS) with different hydrogen flow rates. With increasing hydrogen flow rate oxide ion conductivity successively decreases. The highest ionic conductivity of the dense composite electrolyte coatings reaches a value of 2.4 mS/cm at 900 °C in air, which is comparable to other apatite-type lanthanum silicate (ATLS) conductors.",

keywords = "apatite-type lanthanum silicate coating, atmospheric plasma spraying, intermediate temperature solid oxide fuel cells, oxide ion conductivity",

author = "Wei Gao and Li, \{Wen Ya\} and Liao, \{Han Lin\} and Christian Coddet",

year = "2011",

month = jun,

doi = "10.1007/s11666-011-9625-1",

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TY - JOUR

T1 - Electrical properties of atmospheric plasma-sprayed La 10(SiO 4) 6O 3 electrolyte coatings

AU - Gao, Wei

AU - Li, Wen Ya

AU - Liao, Han Lin

AU - Coddet, Christian

PY - 2011/6

Y1 - 2011/6

N2 - In this present work, La 10(SiO 4) 6O 3 as a promising electrolyte candidate for intermediate temperature solid oxide fuel cells (IT-SOFCs) has been synthesized and its electrical property was investigated as a function of temperature. In order to improve the density and oxide ion conductivity of La 10(SiO 4) 6O 3, the feedstock powder was prepared by sintering the oxide mixture powders at proper sintering temperatures and times. The hexagonal apatite-type ceramic coatings with a typical composition of La 10(SiO 4) 6O 3 were deposited by atmospheric plasma spraying (APS) with different hydrogen flow rates. With increasing hydrogen flow rate oxide ion conductivity successively decreases. The highest ionic conductivity of the dense composite electrolyte coatings reaches a value of 2.4 mS/cm at 900 °C in air, which is comparable to other apatite-type lanthanum silicate (ATLS) conductors.

AB - In this present work, La 10(SiO 4) 6O 3 as a promising electrolyte candidate for intermediate temperature solid oxide fuel cells (IT-SOFCs) has been synthesized and its electrical property was investigated as a function of temperature. In order to improve the density and oxide ion conductivity of La 10(SiO 4) 6O 3, the feedstock powder was prepared by sintering the oxide mixture powders at proper sintering temperatures and times. The hexagonal apatite-type ceramic coatings with a typical composition of La 10(SiO 4) 6O 3 were deposited by atmospheric plasma spraying (APS) with different hydrogen flow rates. With increasing hydrogen flow rate oxide ion conductivity successively decreases. The highest ionic conductivity of the dense composite electrolyte coatings reaches a value of 2.4 mS/cm at 900 °C in air, which is comparable to other apatite-type lanthanum silicate (ATLS) conductors.

KW - apatite-type lanthanum silicate coating

KW - atmospheric plasma spraying

KW - intermediate temperature solid oxide fuel cells

KW - oxide ion conductivity

UR - https://www.scopus.com/pages/publications/79959543155

U2 - 10.1007/s11666-011-9625-1

DO - 10.1007/s11666-011-9625-1

M3 - 文献综述

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SN - 1059-9630

VL - 20

SP - 888

EP - 891

JO - Journal of Thermal Spray Technology

JF - Journal of Thermal Spray Technology

IS - 4

ER -

Electrical properties of atmospheric plasma-sprayed La ₁₀(SiO ₄) ₆O ₃ electrolyte coatings

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Keywords

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