Title : Highly selective ppm level lpg sensors based on Sno2-Zno nanocomposites operable at low temperature
The nanoscaled SnO2, ZnO and SnO2-ZnO nanocomposite powders were prepared by microwave assisted ultrasonication technique by employing centrifuge for collection of dry powders of the materials. Fabrication of the thick films of the pure ZnO and SnO2-ZnO nanocomposite powders were made by simple technique of screen printing, which involves high temperature firing (450°C) for 30 min duration. The morphologies and topographies of surfaces of various samples, the composition of elements in the synthesized materials as well as crystallographic structure of the pure and doped ZnO powders were studied by the FE-SEM, EDS and XRD techniques, respectively. It has been found that the SnO2 doped ZnO (1 wt%) nanocomposite thick film exhibits crucial response to 100 ppm LPG at 50°C and 100°C. The electrical and gas monitoring characteristics of the pure and SnO2 doped ZnO nanocomposites have been also studied in detail.
Audience Take Away:
- Awareness will be developed among the audience for the leakage of LPG at kitchens and industries.
- Audience will be able to learn about the synthesis of bulk and nanomaterials, their applications in the field of LPG sensing in detail.
- Audience will introduce the pollution control, if they know well about the gas sensing, they will be made aware about the hazardous effects of toxic and polluting gases. Audience will be alert in their job from getting knowledge from this presentation. Sure, other faculties or researchers will be able to use this technology in their study, teaching and research. I will help them those who want to do the further work at totally free of cost.