Abstract
Nanosized iron niobate powder with average particle size has been synthesized through pyrolysis of precursor solution containing iron nitrate, niobium tartarate, and triethanolamine (TEA). The compressed powder exhibits maximum sensitivity to at 250°C and liquefied petroleum gas (LPG) and at 300°C. The incorporation of platinum into the nanosized by impregnation method reduces the operating temperature along with response time and recovery time for sensing , LPG, and . X-ray powder diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy studies, energy dispersive X-ray analysis, and Brunauer–Emmett–Teller (BET) surface area measurements have been used for characterization of both the compositions produced after heat-treatment at 850°C. Both samples exhibit orthorhombic structure with crystallite sizes, average particle sizes, and specific surface areas , , and , respectively, determined from XRD, TEM studies, and BET surface area measurements.
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