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| Content Provider | IET Digital Library |
|---|---|
| Author | Cao, Feifei Li, Cuiping Li, Mingji Li, Hongji Yang, Baohe |
| Abstract | Zinc oxide nanorods (ZnONRs) were grown directly on the generally used sensing electrodes of alumina ceramic tubes by a hydrothermal method. Multi-walled carbon nanotubes (MWCNTs) were assembled on the surface of the ZnONRs using ultrasonic dispersing. The ethanol gas sensing properties of the prepared ZnONRs sensor, MWCNTs sensor, and ZnONRs/MWCNTs nanocomposite gas sensor were investigated. The ZnONRs/MWCNTs nanocomposite sensor demonstrated a higher response, faster response-recovery, and better selectivity to ethanol than the ZnONRs and MWCNTs sensors. At an optimal working temperature of 370°C, the response to 100 ppm ethanol is 26.1 for the ZnONRs/MWCNTs nanocomposite sensor, which is much higher than those of the ZnONRs sensor (10.4) and MWCNTs sensor (5.1). A short response time of 2 s and a recovery time of 16 s are achieved for the ZnONRs/MWCNTs sensor. Moreover, the long-term stability and repeatability of the ZnONRs/MWCNTs sensor were also discussed. The improved ethanol sensing properties of the ZnONRs/MWCNTs sensor can be attributed to the synergistic effects of ZnONRs and MWCNTs, including the large specific surface area and high electron transport capability. |
| Starting Page | 779 |
| Ending Page | 783 |
| Page Count | 5 |
| Volume Number | 13 |
| e-ISSN | 17500443 |
| Issue Number | Issue 6, Jun (2018) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/mnl/13/6 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/mnl.2017.0775 |
| Journal | Micro & Nano Letters |
| Publisher Date | 2018-06-01 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Alumina Carbon Nanotubes Ceramics Chemical Sensor Chemical Variables Measurement Ethanol Gas Sensing Property Ethanol Vapour Detection Gas Sonsor Hydrothermal Method II-VI SemiConductor Low-Dimensional Structure: Growth, Structure And Nonelectronic Property Microsensors And Nanosensors Nanocomposite Nanofabrication Nanometre-Scale Semiconductor Fabrication Technology NanoParticle Nanorods Nanosensor Nanotube And Nanostructured Material Semiconductor Growth Structure of Solid Clusters Temperature 370.0 DegC Thin Film Sonsor Time 16.0 S Time 2.0 S Wide Band Gap SemiConductor Zinc Compound Zinc Oxide Nanorods ZnO Nanorod/multiwalled Carbon Nanotube Nanocomposite ZnO-C ZnONR/MWCNT Nanocomposite Gas Sensor |
| Content Type | Text |
| Resource Type | Article |
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