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SO2 Non-equilibrium Gas Sensor Based on Na3Zr2Si2PO12 Solid Electrolyte

文献类型：期刊论文

作者Li Qiang; Shi Wan-Yan; Zhang Chen1; Jiang Dan-Yu
刊名JOURNAL OF INORGANIC MATERIALS
出版日期2018
卷号33期号:2页码:229
关键词non-equilibrium SO2 gas sensor NASICON AC impedance spectroscopy rare earth sodium sulfate complex salts
ISSN号1000-324X
DOI10.15541/jim20170312
英文摘要This paper reported fabrication and sensing properties of solid-state gas electrochemical sensors for sulfur dioxide based on a non-equilibrium working mechanism. Based on Na3Zr2Si2PO12(NASICON) solid electrolyte, SO2 non-equilibrium gas sensors were fabricated by using Na2SO4-BaSO4 mixture and NaRe(SO4)(2) as sensing electrodes. The results showed that there was a good linear relationship between the logarithm of SO2 gas concentration and the sensor output electric potential value. Working at low temperature of 260 degrees C, the sensors display best performances, with sensitivity up to 160 mV/decade and 136 mV/decade. Furthermore, the devices has good repeatability and stability. AC impedance of the sensors in different concentrations of SO2 gas reveals that the electrochemical activity at three phase boundary (TPB) rised with the increased SO2 concentration. Working temperature of the prepared sensor is obviously decreased which is benefited from the high Na+ conductivity of NASICON at low temperature. The sensor possesses good stability and repeatability due to its high chemical stability of Na2SO4-BaSO4 mixture and NaRe(SO4)(2) as sensing materials. The sensor based on non-equilibrium mechanism has many advantages, such as low-cost and simple structure. Owing to the above features, the sensor can be possibly applied in the environment monitoring of SO2.
学科主题Materials Science, Ceramics
WOS记录号WOS:000429158800012
出版者SCIENCE PRESS
资助机构Research Project of Shanghai Institute of Technology (XTCX2017-4) ; Research Project of Shanghai Institute of Technology (XTCX2017-4)
源URL[http://ir.sic.ac.cn/handle/331005/24469]  
专题中国科学院上海硅酸盐研究所
作者单位1.East China Normal Univ, Sch Chem & Mol Engn, Shanghai 20062, Peoples R China
2.Shanghai Inst Technol, Sch Mat Sci & Engn, Shanghai 200235, Peoples R China
3.Chinese Acad Sci, Shanghai Inst Ceram, Shanghai 200050, Peoples R China
推荐引用方式
GB/T 7714		 Li Qiang,Shi Wan-Yan,Zhang Chen,et al. SO2 Non-equilibrium Gas Sensor Based on Na3Zr2Si2PO12 Solid Electrolyte[J]. JOURNAL OF INORGANIC MATERIALS,2018,33(2):229, 236.
APA Li Qiang,Shi Wan-Yan,Zhang Chen,&Jiang Dan-Yu.(2018).SO2 Non-equilibrium Gas Sensor Based on Na3Zr2Si2PO12 Solid Electrolyte.JOURNAL OF INORGANIC MATERIALS,33(2),229.
MLA Li Qiang,et al."SO2 Non-equilibrium Gas Sensor Based on Na3Zr2Si2PO12 Solid Electrolyte".JOURNAL OF INORGANIC MATERIALS 33.2(2018):229.

入库方式： OAI收割

来源：上海硅酸盐研究所

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