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| Content Provider | Springer Nature Link |
|---|---|
| Author | Anjum, S. R. Khairnar, R. S. |
| Copyright Year | 2016 |
| Abstract | Nano crystals of Hydroxyapatite (HAp) were synthesized by a wet chemical precipitation method. The nano composite materials were developed by doping various weight concentrations of carbon nanotubes in HAp, followed by characterization using scanning electron microscopy, and X-ray diffraction. Thick films of these materials were prepared by using screen printing technique. The ethanol sensing properties of these nano crystals and nano composite films were investigated by two probe electrical method. The gas sensing features such as operating temperature, response and recovery time, maximum gas detection limit, etc. were studied, since these parameters are of prime importance for sensor. The results revealed that at room temperature, the composite materials exhibited improved sensing performance towards 100 ppm ethanol with fast response times. It also showed shorter recovery time with higher vapor uptake capacity. The ethanol adsorption processes on doped and undoped substrates can be explained by surface chemical reactions as well as providing the possible adsorption models. The novelty of this work lies in developing reusable sensor substrates for room temperature sensing. |
| Starting Page | 1 |
| Ending Page | 10 |
| Page Count | 10 |
| File Format | |
| ISSN | 15572064 |
| Journal | Sensing and Imaging: An International Journal |
| Volume Number | 17 |
| Issue Number | 1 |
| e-ISSN | 15572072 |
| Language | English |
| Publisher | Springer US |
| Publisher Date | 2016-09-02 |
| Publisher Place | New York |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Carbon nanotubes Ethanol Gas sensor Hydroxyapatite Electrical Engineering Microwaves, RF and Optical Engineering Imaging Radiology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Instrumentation Electrical and Electronic Engineering |
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