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Mesoporous tungsten oxide electrodes for YSZ-based mixed potential sensors to detect NO2 in the sub ppm-range
Zheng, Xiaohong; Zhang, Cheng; Xia, Jinfeng; Zhou, Guohong; Jiang, Danyu; Wang, Shiwei; Li, Xin; Shen, Yibo; Dai, Mengting; Wang, Bing; Li, Qiang
2019-04-01
Source PublicationSENSORS AND ACTUATORS B-CHEMICAL
ISSN0925-4005
Volume284Pages:575
SubtypeArticle
AbstractMesoporous WO3 with diameter of 7 nm and specific surface area of 209 m(2)/g was prepared by using SBA-15 as the hard template. Designed for ppb-level NO2 detection in air, the as-obtained mesoporous WO3 was employed as the sensing electrode to improve the sensitivity of a mixed-potential-type sensor based on yttria-stabilized zirconia electrolyte. This device showed high sensitivity to NO2 over the concentration range of 0.06-10 ppm at 500 degrees C, and the electric potential difference (Delta V) showed good linear correlation with the logarithm of the NO2 concentration. The sensor exhibited high NO2 selectivity, along with excellent repeatability and stability as well. The mixed-potential sensing mechanism was also discussed based on the polarization curves and electrochemical impedances.
KeywordYttria-stabilized zirconia Mesoporous WO3 NO(2)sensor ppb level
DOI10.1016/j.snb.2019.01.016
Language英语
WOS Research AreaChemistry ; Electrochemistry ; Instruments & Instrumentation
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27231
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Zheng, Xiaohong,Zhang, Cheng,Xia, Jinfeng,et al. Mesoporous tungsten oxide electrodes for YSZ-based mixed potential sensors to detect NO2 in the sub ppm-range[J]. SENSORS AND ACTUATORS B-CHEMICAL,2019,284:575.
APA Zheng, Xiaohong.,Zhang, Cheng.,Xia, Jinfeng.,Zhou, Guohong.,Jiang, Danyu.,...&Li, Qiang.(2019).Mesoporous tungsten oxide electrodes for YSZ-based mixed potential sensors to detect NO2 in the sub ppm-range.SENSORS AND ACTUATORS B-CHEMICAL,284,575.
MLA Zheng, Xiaohong,et al."Mesoporous tungsten oxide electrodes for YSZ-based mixed potential sensors to detect NO2 in the sub ppm-range".SENSORS AND ACTUATORS B-CHEMICAL 284(2019):575.
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