Journal
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
Volume 29, Issue 14, Pages 11830-11839Publisher
SPRINGER
DOI: 10.1007/s10854-018-9283-x
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Funding
- University Grants Commission, New Delhi, India under the award of UGC-FIP [36-40/14]
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Ternary TiO2/SnO2/WO3 hybrid nanostructures were prepared by using ultra-sonic assisted sol-gel wet impregnation method, and investigated for NH3 gas sensing applications. The physicochemical properties of the prepared samples were investigated using X-ray diffraction spectroscopy, field emission scanning electron microscopy, transmission electron microscopy, ultra-violet-visible spectroscopy, and X-ray photoelectron spectroscopy. The results showed threefold increase in NH3 gas sensing performance with high selectivity, high response-recovery time at operating temperature 200 A degrees C for ternary TSW-1 NC as compared to its bare, binary and other ternary counterparts. Due to mesoporous morphology of ternary TSW-1 NC and better interconnectivity between metal oxide NPs; NH3 molecule adsorbed efficiently on the surface as well as in interior part of lattice matrix, which resulted into a good sensing response.
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