| Autor: |
Yong Zhou, Tao Xie, Guangjin Yang, Junlong Huang, Guangzhong Xie, Huiling Tai |
| Rok vydání: |
2014 |
| Předmět: |
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| Zdroj: |
7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Smart Structures and Materials for Manufacturing and Testing. |
| ISSN: |
0277-786X |
| Popis: |
Polyvinylpyrrolidone (PVP)/reduced graphene oxide (RGO) nanocomposites are sprayed on quartz crystal microbalance (QCM) for NO2 sensing. The thin films are characterized by Fourier transform infrared spectroscopy (FTIR) and ultraviolet-visible spectroscopy (UV-VIS). The experimental results reveal that PVP/RGO sensor exhibits higher sensitivity and shorter recovery time than those of PVP. Besides, the response to 20 ppm NO2 is higher than other gases such as CO, CO2 and NH3 even at 100ppm. When the PVP/RGO sensor is exposed to these gases, the good selectivity to NO2 makes the sensor ideal for NO2 detection. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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