Influence of calcination temperature on microstructural features and ethanol sensing behaviours of mesoporous SnO2 powder synthesized by soft-template method
Mesoporous SnO2 powders have been synthesized through soft-template method by incorporating cetyltrimethylammonium bromide (CTAB), as structure directing agent. The as-synthesized sample were calcined at 400, 500, and 600°C and they are being characterized by Thermogravimetric Analysis (TGA), X-ray...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | en |
| Published: |
IOP Publishing Ltd
2023
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| Subjects: | |
| Online Access: | http://ir.unimas.my/id/eprint/48848/1/Influence.pdf http://ir.unimas.my/id/eprint/48848/ https://pubs.aip.org/aip/acp/article-abstract/2785/1/030013/2901691/Influence-of-calcination-temperature-on?redirectedFrom=fulltext https://doi.org/10.1063/5.0148625 |
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| Summary: | Mesoporous SnO2 powders have been synthesized through soft-template method by incorporating cetyltrimethylammonium bromide (CTAB), as structure directing agent. The as-synthesized sample were calcined at 400, 500, and 600°C and they are being characterized by Thermogravimetric Analysis (TGA), X-ray Diffraction (XRD), Transmission Electron Microscopy (TEM) and N2 adsorption-desorption experiment. Sample synthesized at 400°C has smaller crystallite and particle size, less agglomerated and high surface area compared to the sample prepared at 500, and 600°C. Thick-film gas sensors were fabricated using synthesized SnO2 powder via screen-printing technique, and the sensing response of the sensors to 1000 ppm ethanol gas were investigated at different operating temperatures. Sensor using sample calcined at 400°C gives the highest sensitivity, S= 26.4 at 300°C operating temperature. |
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