Dielectric nanocomposite of diphenylethylenediamine and P-type multi-walled carbon nanotube for capacitive carbon dioxide sensors
| Autor: | Mojtaba Rahimabady, Yifan Chen, Dimitri Soccol, Keyan Zang, Kui Yao, Lei Zhang, Michael Bolt, Aurelie Humbert, Sze Yu Tan, Chin Yaw Tan, Shuting Chen |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
Diphenylethylenediamine Capacitive sensing Nanotechnology 02 engineering and technology Dielectric Carbon nanotube 01 natural sciences law.invention chemistry.chemical_compound law 0103 physical sciences Materials Chemistry Electrical and Electronic Engineering Instrumentation 010302 applied physics Acrylate Nanocomposite Metals and Alloys 021001 nanoscience & nanotechnology Condensed Matter Physics Surfaces Coatings and Films Electronic Optical and Magnetic Materials Carbon dioxide sensor chemistry Chemical engineering Carbon dioxide 0210 nano-technology |
| Zdroj: | Sensors and Actuators B: Chemical. 243:596-601 |
| ISSN: | 0925-4005 |
| DOI: | 10.1016/j.snb.2016.12.023 |
| Popis: | Dielectric nanocomposite comprising P-type multi-walled carbon nanotube and low molecular weight organic (1R,2R)-(+)-1,2-diphenylethylenediamine, which is stabilised with an acrylate resin, is prepared and used as a sensing layer for capacitive carbon dioxide sensor operated at room temperature. It is found that adding a small amount (0.5 wt%) of P-type multi-walled carbon nanotube in diphenylethylenediamine can dramatically improve the CO2 sensitivity by ∼100 times. The P-type multi-walled carbon nanotube significantly increases the transformation rate of amine to carbamate in CO2 atmosphere as a catalyst for the chemical interactive sensing mechanism. In addition, P-type multi-walled carbon nanotube substantially improves temperature and humidity cross-sensitivities. The results show that the dielectric nanocomposite of diphenylethylenediamine and P-type multi-walled carbon nanotube is promising for capacitive carbon dioxide sensing application with ppm sensitivity at room temperature. |
| Databáze: | OpenAIRE |
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