A NEW SO2/SO3 SENSOR WITH AG2SO4-BASED ELECTROLYTE

被引：24

作者：

LIU, QG

SUN, XD

WU, WJ

机构：

[1] Department of Physical Chemistry, University of Science and Technology, Beijing

来源：

SOLID STATE IONICS | 1990年 / 40-1卷 / 40-41期

关键词：

Air Pollution--Gaseous Effluents - Electrolytes; Solid--Ionic Conduction - Electrolytes--Electric Conductivity - Silver Compounds--Doping - Sulfur Dioxide--Sensors;

D O I：

10.1016/0167-2738(90)90378-5

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

ac impedance technique was used to measure the ionic conductivities of Ag2SO4-based electrolytes doped with A2SO4 (A=Li, Na or K) or MSO4 (M=Sr or Br). The results show that the ionic conductivities of Ag2SO4-based electrolytes increase several times by the doping. A new solid state electrochemical sensor using Ag2SO4-(0.27 mol%)BaSO4 and Ag/Ag2SO4 as a electrolyte and a solid reference electrode, respectively, has been developed to measure SO2 and/or SO3 in gas mixture. The new sensor can measure SO2 and/or SO3 concentration from several ppm to more than 10 000 ppm in an oxidizing atmosphere and shows a longterm stability. © 1990.

引用

页码：456 / 459

页数：4

共 8 条

[1] PROGRESS IN THE DEVELOPMENT OF SOLID-STATE SULFATE DETECTORS FOR SULFUR-OXIDES [J].