Synthesis, characterization and enhanced acetone sensing performance of Pd loaded Sm doped SnO2 nanoparticles
| Autor: | F.I. Shaikh, L.P. Chikhale, S.S. Suryavanshi, Imtiaz S. Mulla |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Tin dioxide Process Chemistry and Technology Analytical chemistry Nanoparticle 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials Nanomaterials chemistry.chemical_compound chemistry Electron diffraction Materials Chemistry Ceramics and Composites Acetone Crystallite Selected area diffraction 0210 nano-technology Selectivity |
| Zdroj: | Ceramics International. 43:10307-10315 |
| ISSN: | 0272-8842 |
| DOI: | 10.1016/j.ceramint.2017.05.060 |
| Popis: | In the present communication, we have presented a high performance acetone sensor based on Pd loaded Sm doped SnO 2 nanomaterial. The (0.5, 1, 2 and 3) wt% Pd loaded 6 mol% Sm doped SnO 2 nanoparticles were prepared using a co-precipitation method. The characterization of samples was done by using X-ray diffraction (XRD), Field Emission Scanning Electron Microscopy (FEG-SEM), Energy Dispersive Analysis by X-rays (EDAX), High Resolution-Transmission Electron Microscopy (HR-TEM) and Selective Area Electron Diffraction (SAED) techniques. The gas response studies such as sensitivity, selectivity and stability towards liquid petroleum gas, ammonia, ethanol and acetone were measured at 100 ppm concentrations. The results show that optimum Pd loading (2 wt%) results in smaller crystallite size (~3.1 nm), lower operating temperature (200 °C), higher gas response (94%),better selectivity, faster response (~3 s) and quicker recovery (~12 s) towards acetone. |
| Databáze: | OpenAIRE |
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