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A Temperature-Modulated Gas Sensor Based on CdO-Decorated Porous ZnO Nanobelts for the Recognizable Detection of Ethanol, Propanol, and Isopropanol
Cai, Liu-Xin1,2,3; Miao, Guang-Ya1,2,3; Li, Gang4; Chen, Li1,2,3; Meng, Fan-Li4,5; Guo, Zheng1,2,3
2021-11-15
Source PublicationIEEE SENSORS JOURNAL
ISSN1530-437X
Corresponding AuthorMeng, Fan-Li(mengfanli@ise.neu.edu.cn) ; Guo, Zheng(zhguo@ahu.edu.cn)
AbstractAlthough the relative response of metal oxide chemiresistive gas sensors has been greatly improved by using their nanostructures as sensing units, it remains challenging to recognize the detected gases due to their intrinsic cross-sensing properties. Here, by considering the temperature dependence of the sensing activity for metal oxide gas sensors, the dynamic sensing behavior of CdO (9 at%)-decorated porous ZnO nanobelts as an example was systematically investigated under a continuously changing working temperature. This working temperature modulation was achieved by precisely manipulating high and low heating voltages with a rectangular wave mode. In some working temperature ranges, the fabricated gas sensor exhibited characteristic response curves toward propanol, isopropanol, and ethanol, which were discriminated from other investigated volatile organic compounds (VOCs). Under periodical working temperature modulation, their characteristic response curves were repeatable and stable. In addition, the relationships between the relative responses at characteristic sensing temperature points and their concentrations were investigated. This work offers a promising strategy for using sensing nanomaterials for the highly sensitive recognition and analysis of VOCs, while avoiding cross-sensing.
KeywordTemperature sensors Sensors Temperature measurement II-VI semiconductor materials Gas detectors Voltage measurement Temperature distribution Working temperature modulation porous nanobelts characteristic sensing behavior VOCs recognition
DOI10.1109/JSEN.2021.3119951
WOS KeywordELECTRONIC NOSE ; NANOSTRUCTURES ; DISCRIMINATION ; RECOGNITION ; PERFORMANCE ; ARRAY
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[61774159] ; National Natural Science Foundation of China[22001001] ; Anhui Provincial Natural Science Foundation[2008085QF320]
Funding OrganizationNational Natural Science Foundation of China ; Anhui Provincial Natural Science Foundation
WOS Research AreaEngineering ; Instruments & Instrumentation ; Physics
WOS SubjectEngineering, Electrical & Electronic ; Instruments & Instrumentation ; Physics, Applied
WOS IDWOS:000717802500077
PublisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
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Document Type期刊论文
Identifierhttp://ir.hfcas.ac.cn:8080/handle/334002/126807
Collection中国科学院合肥物质科学研究院
Corresponding AuthorMeng, Fan-Li; Guo, Zheng
Affiliation1.Anhui Univ, Inst Phys Sci, Informat Mat & Intelligent Sensing Lab Anhui Prov, Hefei 230601, Peoples R China
2.Anhui Univ, Inst Informat Technol, Informat Mat & Intelligent Sensing Lab Anhui Prov, Hefei 230601, Peoples R China
3.Anhui Univ, Key Lab Struct & Funct Regulat Hybrid Mat, Minist Educ, Hefei 230601, Peoples R China
4.Chinese Acad Sci, Hefei Inst Phys Sci, Key Lab Environm Opt & Technol, Hefei 230031, Peoples R China
5.Northeastern Univ, Coll Informat Sci & Engn, Shenyang 110819, Peoples R China
Recommended Citation
GB/T 7714
Cai, Liu-Xin,Miao, Guang-Ya,Li, Gang,et al. A Temperature-Modulated Gas Sensor Based on CdO-Decorated Porous ZnO Nanobelts for the Recognizable Detection of Ethanol, Propanol, and Isopropanol[J]. IEEE SENSORS JOURNAL,2021,21.
APA Cai, Liu-Xin,Miao, Guang-Ya,Li, Gang,Chen, Li,Meng, Fan-Li,&Guo, Zheng.(2021).A Temperature-Modulated Gas Sensor Based on CdO-Decorated Porous ZnO Nanobelts for the Recognizable Detection of Ethanol, Propanol, and Isopropanol.IEEE SENSORS JOURNAL,21.
MLA Cai, Liu-Xin,et al."A Temperature-Modulated Gas Sensor Based on CdO-Decorated Porous ZnO Nanobelts for the Recognizable Detection of Ethanol, Propanol, and Isopropanol".IEEE SENSORS JOURNAL 21(2021).
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