兰州大学机构库 >物理科学与技术学院
Binder-free CuO nanoneedle arrays based tube-type sensor for H2S gas sensing
Hu, Qiang1; Zhang, Wenjian1; Wang, Xiaoyu1; Wang, Qiao1; Huang, Baoyu2; Li, Yan1; Hua, Xiaohui1; Liu, Guo1; Li, Bingsheng3; Zhou, JY(周金元)1; Xie, EQ(谢二庆)1; Zhang, ZX(张振兴)1
2021
Source PublicationSensors and Actuators, B: Chemical
ISSN09254005
Volume326
AbstractCuO nanoneedle arrays were directly prepared on the commercial ceramic tubes by magnetron sputtering and subsequent wet chemical etching and annealing. This brand-new fabrication of the tube-type gas sensor retains the high specific surface area of nanoneedle and avoids using binders that are generally used for coating gas-sensitive materials on the surface of the ceramic tube. The as-fabricated binder-free CuO nanoneedle arrays sensor exhibits a decent response of 76.50 % to 10 ppm H2S at a low temperature of 150 °C. The response decreases to 20.27 % as the relative humidity increases from 40 % to 80 %. Moreover, the sensor shows good selectivity, reproducibility, and long-term stability to a low concentration of 10 ppm H2S. This superior sensing performance can be attributed to the abundant surface reactive adsorption sites provided by CuO nanoneedle arrays and the sensitization effect of p-p nano-homojunctions that arose from the interlaced CuO nanoneedles. © 2020 Elsevier B.V.
KeywordBinders Copper oxides Gas detectors Hydrogen sulfide Temperature Wet etchingGas sensitive material High specific surface area Long term stability Low concentrations Nanoneedle arrays Reactive adsorption Reproducibilities Sensing performance
PublisherElsevier B.V., Netherlands
DOI10.1016/j.snb.2020.128993
Indexed ByEI
Language英语
EI Accession Number20204109337387
EI KeywordsNanoneedles
EI Classification Number641.1 Thermodynamics ; 761 Nanotechnology ; 803 Chemical Agents and Basic Industrial Chemicals ; 804.2 Inorganic Compounds ; 914.1 Accidents and Accident Prevention ; 933 Solid State Physics
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Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.lzu.edu.cn/handle/262010/440638
Collection物理科学与技术学院
Corresponding AuthorZhang, Zhenxing
Affiliation1.Key Laboratory of Special Function Materials and Structure Design of the Ministry of Education, Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, School of Physical Science and Technology, Lanzhou University, Lanzhou; 730000, China;
2.School of Microelectronics, Dalian University of Technology, Dalian; 116024, China;
3.State Key Laboratory for Environment-friendly Energy Materials, Southwest University of Science and Technology, Mianyang; Sichuan; 621010, China
First Author AffilicationSchool of Physical Sicence and Technology
Corresponding Author AffilicationSchool of Physical Sicence and Technology
Recommended Citation
GB/T 7714
Hu, Qiang,Zhang, Wenjian,Wang, Xiaoyu,et al. Binder-free CuO nanoneedle arrays based tube-type sensor for H2S gas sensing[J]. Sensors and Actuators, B: Chemical,2021,326.
APA Hu, Qiang.,Zhang, Wenjian.,Wang, Xiaoyu.,Wang, Qiao.,Huang, Baoyu.,...&Zhang, Zhenxing.(2021).Binder-free CuO nanoneedle arrays based tube-type sensor for H2S gas sensing.Sensors and Actuators, B: Chemical,326.
MLA Hu, Qiang,et al."Binder-free CuO nanoneedle arrays based tube-type sensor for H2S gas sensing".Sensors and Actuators, B: Chemical 326(2021).
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