Effect of silver addition on the microstructures and electrical responses of La(1.7)Sr(0.3)Mo(2)O(9 - δ) ceramics

Xiao Liu; Huiqing Fan; Jing Shi

doi:10.1016/j.materresbull.2012.10.012

Effect of silver addition on the microstructures and electrical responses of La(1.7)Sr(0.3)Mo(2)O(9 - δ) ceramics

Xiao Liu, Huiqing Fan, Jing Shi

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

2 Scopus citations

Abstract

Different amounts of silver (3-15 wt.% Ag₂O) have been mixed with ceramic powders based on La_1.7Sr_0.3Mo ₂O_9-δ (LSM). XRD analysis indicated that the silver was chemically stable in LSM. TEM observation and XPS analysis showed that some metallic silver atoms presented random distribution in the LSM ceramic, while others entered into crystal lattice in the form of Ag⁺, efficiently stabilizing the cubic phase at the room temperature. And there were a great enhancement on conductivity in Ag added (<10 wt.% Ag₂O) LSM ceramics. Also addition of Ag had a significant influence on the surface oxygen exchange properties with electrode components.

Original language	English
Pages (from-to)	58-62
Number of pages	5
Journal	Materials Research Bulletin
Volume	48
Issue number	1
DOIs	https://doi.org/10.1016/j.materresbull.2012.10.012
State	Published - Jan 2013

Keywords

A. Oxides
C. Impedance spectroscopy
D. Diffusion
D. Ionic conductivity

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title = "Effect of silver addition on the microstructures and electrical responses of La(1.7)Sr(0.3)Mo(2)O(9 - δ) ceramics",

abstract = "Different amounts of silver (3-15 wt.% Ag2O) have been mixed with ceramic powders based on La1.7Sr0.3Mo 2O9-δ (LSM). XRD analysis indicated that the silver was chemically stable in LSM. TEM observation and XPS analysis showed that some metallic silver atoms presented random distribution in the LSM ceramic, while others entered into crystal lattice in the form of Ag+, efficiently stabilizing the cubic phase at the room temperature. And there were a great enhancement on conductivity in Ag added (<10 wt.% Ag2O) LSM ceramics. Also addition of Ag had a significant influence on the surface oxygen exchange properties with electrode components.",

keywords = "A. Oxides, C. Impedance spectroscopy, D. Diffusion, D. Ionic conductivity",

author = "Xiao Liu and Huiqing Fan and Jing Shi",

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T1 - Effect of silver addition on the microstructures and electrical responses of La(1.7)Sr(0.3)Mo(2)O(9 - δ) ceramics

AU - Liu, Xiao

AU - Fan, Huiqing

AU - Shi, Jing

PY - 2013/1

Y1 - 2013/1

N2 - Different amounts of silver (3-15 wt.% Ag2O) have been mixed with ceramic powders based on La1.7Sr0.3Mo 2O9-δ (LSM). XRD analysis indicated that the silver was chemically stable in LSM. TEM observation and XPS analysis showed that some metallic silver atoms presented random distribution in the LSM ceramic, while others entered into crystal lattice in the form of Ag+, efficiently stabilizing the cubic phase at the room temperature. And there were a great enhancement on conductivity in Ag added (<10 wt.% Ag2O) LSM ceramics. Also addition of Ag had a significant influence on the surface oxygen exchange properties with electrode components.

AB - Different amounts of silver (3-15 wt.% Ag2O) have been mixed with ceramic powders based on La1.7Sr0.3Mo 2O9-δ (LSM). XRD analysis indicated that the silver was chemically stable in LSM. TEM observation and XPS analysis showed that some metallic silver atoms presented random distribution in the LSM ceramic, while others entered into crystal lattice in the form of Ag+, efficiently stabilizing the cubic phase at the room temperature. And there were a great enhancement on conductivity in Ag added (<10 wt.% Ag2O) LSM ceramics. Also addition of Ag had a significant influence on the surface oxygen exchange properties with electrode components.

KW - A. Oxides

KW - C. Impedance spectroscopy

KW - D. Diffusion

KW - D. Ionic conductivity

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DO - 10.1016/j.materresbull.2012.10.012

M3 - 文章

AN - SCOPUS:84869490863

SN - 0025-5408

VL - 48

SP - 58

EP - 62

JO - Materials Research Bulletin

JF - Materials Research Bulletin

IS - 1

ER -

Effect of silver addition on the microstructures and electrical responses of La(1.7)Sr(0.3)Mo(2)O(9 - δ) ceramics

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Keywords

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