SO2 gas sensor based on Ag-Ag2SO4-BaSO4 sensing electrode

Wangyan Shi; Tao Feng; Dangyu Jiang; Qiang Li

doi:10.1007/s11581-014-1332-8

SO₂ gas sensor based on Ag-Ag₂SO₄-BaSO₄ sensing electrode

Wangyan Shi
, Tao Feng
, Dangyu Jiang
, Qiang Li^*

^*Corresponding author for this work

School of Chemistry and Molecular Engineering

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

10 Scopus citations

Abstract

A sulfur dioxide (SO₂) gas sensor based on a novel structural sensing electrode was fabricated. The sensor consists of yttria-stabilized zirconia as the oxygen ion conductor, silver sulfate-based salts as the auxiliary phase, a silver/platinum mixed paste as the sensing electrode/catalyst, and a platinum paste as the reference electrode. Ball milling was employed to decrease the particle size of the silver sulfate-barium sulfate (Ag₂SO₄-BaSO₄) auxiliary phase. After the Ag₂SO₄-BaSO₄ mixture ball-milling for 20 h, the as-obtained sensor showed the highest sensitivity to SO₂ gas. Furthermore, in order to optimize the sensing electrode, particles of metallic silver were mixed with silver sulfate-based salts, and the as-designed sensing electrode displayed an improved sensitivity to SO₂ gas at a low temperature (400 °C).

Original language	English
Pages (from-to)	1719-1723
Number of pages	5
Journal	Ionics
Volume	21
Issue number	6
DOIs	https://doi.org/10.1007/s11581-014-1332-8
State	Published - 26 Jun 2015

Keywords

AgSO-BaSO
Metallic silver
Particle size
SO sensor
YSZ

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10.1007/s11581-014-1332-8

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title = "SO2 gas sensor based on Ag-Ag2SO4-BaSO4 sensing electrode",

abstract = "A sulfur dioxide (SO2) gas sensor based on a novel structural sensing electrode was fabricated. The sensor consists of yttria-stabilized zirconia as the oxygen ion conductor, silver sulfate-based salts as the auxiliary phase, a silver/platinum mixed paste as the sensing electrode/catalyst, and a platinum paste as the reference electrode. Ball milling was employed to decrease the particle size of the silver sulfate-barium sulfate (Ag2SO4-BaSO4) auxiliary phase. After the Ag2SO4-BaSO4 mixture ball-milling for 20 h, the as-obtained sensor showed the highest sensitivity to SO2 gas. Furthermore, in order to optimize the sensing electrode, particles of metallic silver were mixed with silver sulfate-based salts, and the as-designed sensing electrode displayed an improved sensitivity to SO2 gas at a low temperature (400 °C).",

keywords = "AgSO-BaSO, Metallic silver, Particle size, SO sensor, YSZ",

author = "Wangyan Shi and Tao Feng and Dangyu Jiang and Qiang Li",

note = "Publisher Copyright: {\textcopyright} 2014, Springer-Verlag Berlin Heidelberg.",

year = "2015",

month = jun,

day = "26",

doi = "10.1007/s11581-014-1332-8",

language = "英语",

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TY - JOUR

T1 - SO2 gas sensor based on Ag-Ag2SO4-BaSO4 sensing electrode

AU - Shi, Wangyan

AU - Feng, Tao

AU - Jiang, Dangyu

AU - Li, Qiang

PY - 2015/6/26

Y1 - 2015/6/26

N2 - A sulfur dioxide (SO2) gas sensor based on a novel structural sensing electrode was fabricated. The sensor consists of yttria-stabilized zirconia as the oxygen ion conductor, silver sulfate-based salts as the auxiliary phase, a silver/platinum mixed paste as the sensing electrode/catalyst, and a platinum paste as the reference electrode. Ball milling was employed to decrease the particle size of the silver sulfate-barium sulfate (Ag2SO4-BaSO4) auxiliary phase. After the Ag2SO4-BaSO4 mixture ball-milling for 20 h, the as-obtained sensor showed the highest sensitivity to SO2 gas. Furthermore, in order to optimize the sensing electrode, particles of metallic silver were mixed with silver sulfate-based salts, and the as-designed sensing electrode displayed an improved sensitivity to SO2 gas at a low temperature (400 °C).

AB - A sulfur dioxide (SO2) gas sensor based on a novel structural sensing electrode was fabricated. The sensor consists of yttria-stabilized zirconia as the oxygen ion conductor, silver sulfate-based salts as the auxiliary phase, a silver/platinum mixed paste as the sensing electrode/catalyst, and a platinum paste as the reference electrode. Ball milling was employed to decrease the particle size of the silver sulfate-barium sulfate (Ag2SO4-BaSO4) auxiliary phase. After the Ag2SO4-BaSO4 mixture ball-milling for 20 h, the as-obtained sensor showed the highest sensitivity to SO2 gas. Furthermore, in order to optimize the sensing electrode, particles of metallic silver were mixed with silver sulfate-based salts, and the as-designed sensing electrode displayed an improved sensitivity to SO2 gas at a low temperature (400 °C).

KW - AgSO-BaSO

KW - Metallic silver

KW - Particle size

KW - SO sensor

KW - YSZ

UR - https://www.scopus.com/pages/publications/84929843574

U2 - 10.1007/s11581-014-1332-8

DO - 10.1007/s11581-014-1332-8

M3 - 文章

AN - SCOPUS:84929843574

SN - 0947-7047

VL - 21

SP - 1719

EP - 1723

JO - Ionics

JF - Ionics

IS - 6

ER -

SO₂ gas sensor based on Ag-Ag₂SO₄-BaSO₄ sensing electrode

Abstract

Keywords

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